Updated on 8/29/2014 Window-to-floor Ratio (WFR)=12%

Table 1A: Summary of Code Requirements Analyzed for Manufactured Housing Note: although these annual consumption projections result from the primary drivers of energy efficiency measures, they only comprise a small portion of the requirements set forth in the IECC.

IECC 

ClimateZone

HUD 

Zone

EnergyStar 

Zone Building Component HUD Code 2006 IECC 2009 IECC 2012 IECC 2015 IECC EnergyStar Package #1 Package #2 Package #3 Package #4

Wall Insulation R-value (hr-ft2-F/Btu) 13 13 13 13 13 11 R-15 R-15 R-15 R-15

Ceiling Insulation R-value (hr-ft2-F/Btu) 30 30 30 30 30 30 R-38 R-38 R-38 R-38

Floor Insulation R-value (hr-ft2-F/Btu) 13 13 13 13 13 13 R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor

Window U-factor (Btu/hr-ft2-F) 1.07 1.2 1.2 NR NR 0.75 | 0.52 0.35 0.35 0.35 0.35

Window SHGC 0.6 0.4 0.3 0.25 0.25 0.5 | 0.4 0.28 0.25 0.28 0.25

Envelope Leakage Limit (ACH50) NR (8) (b) NR (8) (b) 7 5 5 7 5 5 5 5

Duct Leakage Limit % (CFM25/100 ft2 CFA) NR (12) (c) NR (9) (c) 8 4 4 3 4 4 4 4

Domestic Hot Water Pipe Insulation (a) NR NR NR R-3 R-3 NR R-3 R-3 R-3 R-3

High-efficacy Lighting Percentage (%) NR (34%) (d) NR (34%) (d) 50% 75% 75% NR (34%) (d) 75% 75% 75% 75%

Wall Insulation R-value (hr-ft2-F/Btu) 13 13 13 13 13 11 | 20 R-15 R-15 R-15 R-15

Ceiling Insulation R-value (hr-ft2-F/Btu) 30 30 30 38 38 30 R-38 R-38 R-38 R-38

Floor Insulation R-value (hr-ft2-F/Btu) 13 13 13 13 13 13 | 30 R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor

Window U-factor (Btu/hr-ft2-F) 1.07 0.75 0.65 0.4 0.4 0.75 | 0.52 0.35 0.35 0.35 0.35

Window SHGC 0.6 0.4 0.3 0.25 0.25 0.5 | 0.4 0.28 0.25 0.28 0.25

Envelope Leakage Limit (ACH50) NR (8) (b) NR (8) (b) 7 5 5 7 5 5 5 5

Duct Leakage Limit (CFM25/100 ft2 CFA) NR (12) (c) NR (9) (c) 8 4 4 3 4 4 4 4

Domestic Hot Water Pipe Insulation (a) NR NR NR R-3 R-3 NR R-3 R-3 R-3 R-3

High-efficacy Lighting Percentage (%) NR (34%) (d) NR (34%) (d) 50% 75% 75% NR (34%) (d) 75% 75% 75% 75%

Wall Insulation R-value (hr-ft2-F/Btu) 11 13 13 13 13 11 | 20 R-21 R-21 R-21 R-21

Ceiling Insulation R-value (hr-ft2-F/Btu) 30 30 30 38 38 30 R-38 R-38 R-38 R-38

Floor Insulation R-value (hr-ft2-F/Btu) 13 13 13 13 13 13 | 30 R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor

Window U-factor (Btu/hr-ft2-F) 0.52 0.75 0.65 0.4 0.4 0.75 | 0.52 0.31 0.31 0.31 0.31 Table 1B: Heating Fuel Distribution Used in Aggregation

Window SHGC 0.5 0.4 0.3 0.25 0.25 0.5 | 0.4 0.28 0.25 0.28 0.25 IECC Climate-Zone Location HUD Zone Natural Gas 

Furnace Heat Pump Electric Resistance

LPG 

Furnace Total

Envelope Leakage Limit (ACH50) NR (8) (b) NR (8) (b) 7 5 5 7 5 5 5 5 1A Miami 1 5% 25% 60% 10% 100%

Duct Leakage Limit (CFM25/100 ft2 CFA) NR (12) (c) NR (9) (c) 8 4 4 3 4 4 4 4 2A Houston 1 5% 25% 60% 10% 100%

Domestic Hot Water Pipe Insulation (a) NR NR NR R-3 R-3 NR R-3 R-3 R-3 R-3 2B Phoenix 2 25% 15% 40% 20% 100%

High-efficacy Lighting Percentage (%) NR (34%) (d) NR (34%) (d) 50% 75% 75% NR (34%) (d) 75% 75% 75% 75% 3A Memphis 2 25% 15% 40% 20% 100%

Wall Insulation R-value (hr-ft2-F/Btu) 11 13 13 20 20 R-21 R-21 R-21 R-21 3B El Paso 2 25% 15% 40% 20% 100%

Ceiling Insulation R-value (hr-ft2-F/Btu) 30 30 30 38 38 R-38 R-38 R-38 R-38 3C San Francisco 2 25% 15% 40% 20% 100%

Floor Insulation R-value (hr-ft2-F/Btu) 13 19 19 19 19 R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor 4A Baltimore 3 40% 10% 20% 30% 100%

Window U-factor (Btu/hr-ft2-F) 0.52 0.65 0.5 0.35 0.35 0.31 0.31 0.31 0.31 4B Albuquerque 2 25% 15% 40% 20% 100%

Window SHGC 0.5 0.4 0.3 0.25 0.25 0.28 0.25 0.28 0.25 4C Salem 3 40% 10% 20% 30% 100%

Envelope Leakage Limit (ACH50) NR (8) (b) NR (8) (b) 7 3 3 5 5 5 5 5A Chicago 3 40% 10% 20% 30% 100%

Duct Leakage Limit (CFM25/100 ft2 CFA) NR (12) (c) NR (9) (c) 8 4 4 4 4 4 4 5B Boise 3 40% 10% 20% 30% 100%

Domestic Hot Water Pipe Insulation (a) NR NR NR R-3 R-3 R-3 R-3 R-3 R-3 6A Burlington 3 40% 10% 20% 30% 100%

High-efficacy Lighting Percentage (%) NR (34%) (d) NR (34%) (d) 50% 75% 75% 75% 75% 75% 75% 6B Helena 3 40% 10% 20% 30% 100%

Wall Insulation R-value (hr-ft2-F/Btu) 11 13 13 20 20 R-21 R-21 R-21 R-21 7 Duluth 3 40% 10% 20% 30% 100%

Ceiling Insulation R-value (hr-ft2-F/Btu) 30 30 30 38 38 R-38 R-38 R-38 R-38 8 Fairbanks 3 40% 10% 20% 30% 100%

Floor Insulation R-value (hr-ft2-F/Btu) 13 19 19 19 19 R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor

Notes:

Window U-factor (Btu/hr-ft2-F) 0.52 0.65 0.5 0.35 0.35 0.31 0.31 0.31 0.31

Window SHGC 0.5 0.4 0.3 0.25 0.25 0.28 0.25 0.28 0.25

Envelope Leakage Limit (ACH50) NR (8) (b) NR (8) (b) 7 3 3 5 5 5 5

Duct Leakage Limit (CFM25/100 ft2 CFA) NR (12) (c) NR (9) (c) 8 4 4 4 4 4 4

Domestic Hot Water Pipe Insulation (a) NR NR NR R-3 R-3 R-3 R-3 R-3 R-3

High-efficacy Lighting Percentage (%) NR (34%) (d) NR (34%) (d) 50% 75% 75% 75% 75% 75% 75%

Wall Insulation R-value (hr-ft2-F/Btu) 11 13 13 20 20 R-21 R-21 R-21 R-21

Ceiling Insulation R-value (hr-ft2-F/Btu) 30 30 30 38 38 R-38 R-38 R-38 R-38

Floor Insulation R-value (hr-ft2-F/Btu) 13 19 19 19 19 R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor

Window U-factor (Btu/hr-ft2-F) 0.52 0.65 0.5 0.35 0.35 0.31 0.31 0.31 0.31

Window SHGC 0.5 0.4 0.3 0.25 0.25 0.28 0.25 0.28 0.25

Envelope Leakage Limit (ACH50) NR (8) (b) NR (8) (b) 7 3 3 5 5 5 5

Duct Leakage Limit (CFM25/100 ft2 CFA) NR (12) (c) NR (9) (c) 8 4 4 4 4 4 4

Domestic Hot Water Pipe Insulation (a) NR NR NR R-3 R-3 R-3 R-3 R-3 R-3

High-efficacy Lighting Percentage (%) NR (34%) (d) NR (34%) (d) 50% 75% 75% 75% 75% 75% 75%

Wall Insulation R-value (hr-ft2-F/Btu) 13 13 13 20 20 R-21 R-21 R-21 R-21

Ceiling Insulation R-value (hr-ft2-F/Btu) 30 38 38 38 (e) 38 (e) R-49 R-49 R-38 R-38

Floor Insulation R-value (hr-ft2-F/Btu) 22 19 19 19 19 R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor

Window U-factor (Btu/hr-ft2-F) 0.52 0.4 0.35 0.35 0.35 0.31 0.31 0.31 0.31

Window SHGC 0.5 NR NR 0.4 0.4 NR NR NR NR

Envelope Leakage Limit (ACH50) NR (8) (b) NR (8) (b) 7 3 3 5 5 5 5

Duct Leakage Limit (CFM25/100 ft2 CFA) NR (12) (c) NR (9) (c) 8 4 4 4 4 4 4

Domestic Hot Water Pipe Insulation (a) NR NR NR R-3 R-3 R-3 R-3 R-3 R-3

High-efficacy Lighting Percentage (%) NR (34%) (d) NR (34%) (d) 50% 75% 75% 75% 75% 75% 75%

Wall Insulation R-value (hr-ft2-F/Btu) 11 13 13 20 20 R-21 R-21 R-21 R-21

Ceiling Insulation R-value (hr-ft2-F/Btu) 30 38 38 38 (e) 38 (e) R-38 R-38 R-38 R-38

Floor Insulation R-value (hr-ft2-F/Btu) 13 19 19 19 19 R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor

Window U-factor (Btu/hr-ft2-F) 0.52 0.4 0.35 0.35 0.35 0.31 0.31 0.31 0.31

Window SHGC 0.5 NR NR 0.4 0.4 0.28 0.25 0.28 0.25

Envelope Leakage Limit (ACH50) NR (8) (b) NR (8) (b) 7 3 3 5 5 5 5

Duct Leakage Limit (CFM25/100 ft2 CFA) NR (12) (c) NR (9) (c) 8 4 4 4 4 4 4

Domestic Hot Water Pipe Insulation (a) NR NR NR R-3 R-3 R-3 R-3 R-3 R-3

High-efficacy Lighting Percentage (%) NR (34%) (d) NR (34%) (d) 50% 75% 75% 75% 75% 75% 75%

Wall Insulation R-value (hr-ft2-F/Btu) 13 19 20 20 20 R-21 R-21 R-21 R-21

Ceiling Insulation R-value (hr-ft2-F/Btu) 30 38 38 38 (e) 38 (e) R-49 R-49 R-38 R-38

Floor Insulation R-value (hr-ft2-F/Btu) 22 30 30 30 30 R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor

Window U-factor (Btu/hr-ft2-F) 0.52 0.35 0.35 0.32 0.32 0.31 0.31 0.31 0.31

Window SHGC 0.5 NR NR NR NR NR NR NR NR

Envelope Leakage Limit (ACH50) NR (8) (b) NR (8) (b) 7 3 3 5 5 5 5

Duct Leakage Limit (CFM25/100 ft2 CFA) NR (12) (c) NR (9) (c) 8 4 4 4 4 4 4

Domestic Hot Water Pipe Insulation (a) NR NR NR R-3 R-3 R-3 R-3 R-3 R-3

High-efficacy Lighting Percentage (%) NR (34%) (d) NR (34%) (d) 50% 75% 75% 75% 75% 75% 75%

Wall Insulation R-value (hr-ft2-F/Btu) 13 19 20 20 20 R-21 R-21 R-21 R-21

Ceiling Insulation R-value (hr-ft2-F/Btu) 30 38 38 38 (e) 38 (e) R-49 R-49 R-38 R-38

Floor Insulation R-value (hr-ft2-F/Btu) 22 30 30 30 30 R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor

Window U-factor (Btu/hr-ft2-F) 0.52 0.35 0.35 0.32 0.32 0.31 0.31 0.31 0.31

Window SHGC 0.5 NR NR NR NR NR NR NR NR

Envelope Leakage Limit (ACH50) NR (8) (b) NR (8) (b) 7 3 3 5 5 5 5

Duct Leakage Limit (CFM25/100 ft2 CFA) NR (12) (c) NR (9) (c) 8 4 4 4 4 4 4

Domestic Hot Water Pipe Insulation (a) NR NR NR R-3 R-3 R-3 R-3 R-3 R-3

High-efficacy Lighting Percentage (%) NR (34%) (d) NR (34%) (d) 50% 75% 75% 75% 75% 75% 75%

4

4

4

Code Provisions Applicable to Manufactured Housing

Approximated from detailed "Microdata" from the 2011 American Housing Survey (U.S. Census Bureau 2011)

MH WG Packages

3A 2

3B 2

3C 2

4A 3

4B 2

4C 3

5A 3

1A 1

2A 1

2B 2
Wall Insulation R-value (hr-ft2-F/Btu) 13 19 20 20 20 R-21 R-21 R-21 R-21

Ceiling Insulation R-value (hr-ft2-F/Btu) 30 38 38 38 (e) 38 (e) R-49 R-49 R-38 R-38

Floor Insulation R-value (hr-ft2-F/Btu) 22 30 30 30 30 R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor

Window U-factor (Btu/hr-ft2-F) 0.52 0.35 0.35 0.32 0.32 0.31 0.31 0.31 0.31

Window SHGC 0.5 NR NR NR NR NR NR NR NR

Envelope Leakage Limit (ACH50) NR (8) (b) NR (8) (b) 7 3 3 5 5 5 5

Duct Leakage Limit (CFM25/100 ft2 CFA) NR (12) (c) NR (9) (c) 8 4 4 4 4 4 4

Domestic Hot Water Pipe Insulation (a) NR NR NR R-3 R-3 R-3 R-3 R-3 R-3

High-efficacy Lighting Percentage (%) NR (34%) (d) NR (34%) (d) 50% 75% 75% 75% 75% 75% 75%

Wall Insulation R-value (hr-ft2-F/Btu) 13 19 20 20 (e) 20 (e) R-21 R-21 R-21 R-21

Ceiling Insulation R-value (hr-ft2-F/Btu) 30 38 (e) 38 (e) 38 (e) 38 (e) R-49 R-49 R-38 R-38

Floor Insulation R-value (hr-ft2-F/Btu) 22 30 30 30 30 R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor

Window U-factor (Btu/hr-ft2-F) 0.52 0.35 0.35 0.32 0.32 0.31 0.31 0.31 0.31

Window SHGC 0.5 NR NR NR NR NR NR NR NR

Envelope Leakage Limit (ACH50) NR (8) (b) NR (8) (b) 7 3 3 5 5 5 5

Duct Leakage Limit (CFM25/100 ft2 CFA) NR (12) (c) NR (9) (c) 8 4 4 4 4 4 4

Domestic Hot Water Pipe Insulation (a) NR NR NR R-3 R-3 R-3 R-3 R-3 R-3

High-efficacy Lighting Percentage (%) NR (34%) (d) NR (34%) (d) 50% 75% 75% 75% 75% 75% 75%

Wall Insulation R-value (hr-ft2-F/Btu) 13 19 20 20 (e) 20 (e) R-21 R-21 R-21 R-21

Ceiling Insulation R-value (hr-ft2-F/Btu) 30 38 (e) 38 (e) 38 (e) 38 (e) R-49 R-49 R-38 R-38

Floor Insulation R-value (hr-ft2-F/Btu) 22 30 30 30 30 R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor

Window U-factor (Btu/hr-ft2-F) 0.52 0.35 0.35 0.32 0.32 0.31 0.31 0.31 0.31

Window SHGC 0.5 NR NR NR NR NR NR NR NR

Envelope Leakage Limit (ACH50) NR (8) (b) NR (8) (b) 7 3 3 5 5 5 5

Duct Leakage Limit (CFM25/100 ft2 CFA) NR (12) (c) NR (9) (c) 8 4 4 4 4 4 4

Domestic Hot Water Pipe Insulation (a) NR NR NR R-3 R-3 R-3 R-3 R-3 R-3

High-efficacy Lighting Percentage (%) NR (34%) (d) NR (34%) (d) 50% 75% 75% 75% 75% 75% 75%

Wall Insulation R-value (hr-ft2-F/Btu) 13 21 21 20 (e) 20 (e) R-21 R-21 R-21 R-21

Ceiling Insulation R-value (hr-ft2-F/Btu) 30 38 (e) 38 (e) 38 (e) 38 (e) R-49 R-49 R-38 R-38

Floor Insulation R-value (hr-ft2-F/Btu) 22 30 30 (e) 30 (e) 30 (e) R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor

Window U-factor (Btu/hr-ft2-F) 0.52 0.35 0.35 0.32 0.32 0.31 0.31 0.31 0.31

Window SHGC 0.5 NR NR NR NR NR NR NR NR

Envelope Leakage Limit (ACH50) NR (8) (b) NR (8) (b) 7 3 3 5 5 5 5

Duct Leakage Limit (CFM25/100 ft2 CFA) NR (12) (c) NR (9) (c) 8 4 4 4 4 4 4

Domestic Hot Water Pipe Insulation (a) NR NR NR R-3 R-3 R-3 R-3 R-3 R-3

High-efficacy Lighting Percentage (%) NR (34%) (d) NR (34%) (d) 50% 75% 75% 75% 75% 75% 75%

Wall Insulation R-value (hr-ft2-F/Btu) 13 21 21 20 (e) 20 (e) R-21 R-21 R-21 R-21

Ceiling Insulation R-value (hr-ft2-F/Btu) 30 38 (e) 38 (e) 38 (e) 38 (e) R-49 R-49 R-38 R-38

Floor Insulation R-value (hr-ft2-F/Btu) 22 30 30 (e) 30 (e) 30 (e) R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor R11 belly blanket + R21 entire floor

Window U-factor (Btu/hr-ft2-F) 0.52 0.35 0.35 0.32 0.32 0.31 0.31 0.31 0.31

Window SHGC 0.5 NR NR NR NR NR NR NR NR

Envelope Leakage Limit (ACH50) NR (8) (b) NR (8) (b) 7 3 3 5 5 5 5

Duct Leakage Limit (CFM25/100 ft2 CFA) NR (12) (c) NR (9) (c) 8 4 4 4 4 4 4

Domestic Hot Water Pipe Insulation (a) NR NR NR R-3 R-3 R-3 R-3 R-3 R-3

High-efficacy Lighting Percentage (%) NR (34%) (d) NR (34%) (d) 50% 75% 75% 75% 75% 75% 75%

Notes: a.

Domestic hot water pipe insulation requirements are different between the 2012 and 2015 editions of the IECC.

b.

c.

d.

e. 

In absence of 2006 IECC code requirements for envelope leakage limit, a 2006 IECC baseline is created based on Mendon et al. 2013. "CostEffectiveness Analysis of the 2009 and 2012 IECC Residential Provisions – Technical Support Document". Pacific Northwest National Laboratory, 

Richland, Washington. The same leakage limit is used for the HUD cases.

In absence of HUD and 2006 IECC code requirements for duct leakage limit, a baseline is created based on Lucas et al. 2007. “National Energy Savings 

Potential in HUD-Code Housing from Thermal Envelope and HVAC Equipment Improvements” ASHRAE Transactions 113 Part 2:62-69. 

The original IECC prescriptive requirements for ceiling, floor and wall sheathing insulation have been modified in some cases to provide consideration 

for constraints related to manufactured housing dimensions and construction. Where the IECC prescribes ceiling insulation greater than R-38, a value of 

R-38 is used; where IECC prescribes floor insulation greater than R-30, a value of R-30 is used and wall sheathing requirements prescribed by the IECC 

are not considered in this analysis.

The lighting baseline is created based on the benchmark defined in the 2014 Building America House Simulation Protocols. Wilson et al. 2014. "2014 

Building America House Simulation Protocols". National Renewable Energy Laboratory, Golden, Colorado. 

7 3

6B 3

8 3

5B 3

6A 3
Note: although these annual consumption projections result from the primary drivers of en

Table 2A. Annual EUI (kBtu/sf/yr) associated with the HUD Code and the IECC Codes for single-wide manufactured homes (Heating System: Ele

City Name IECC Climate Zone HUD Zone EStar Zone Heating System

Miami 1A 1 4 Electric Resistance

Miami 1A 1 4 Electric Resistance

Miami 1A 1 4 Electric Resistance

Miami 1A 1 4 Electric Resistance

Miami 1A 1 4 Electric Resistance

Houston 2A 1 4 Electric Resistance

Houston 2A 1 4 Electric Resistance

Houston 2A 1 4 Electric Resistance

Houston 2A 1 4 Electric Resistance

Houston 2A 1 4 Electric Resistance

Phoenix 2B 2 4 Electric Resistance

Phoenix 2B 2 4 Electric Resistance

Phoenix 2B 2 4 Electric Resistance

Phoenix 2B 2 4 Electric Resistance

Phoenix 2B 2 4 Electric Resistance

Memphis 3A 2 3 Electric Resistance

Memphis 3A 2 3 Electric Resistance

Memphis 3A 2 3 Electric Resistance

Memphis 3A 2 3 Electric Resistance

Memphis 3A 2 3 Electric Resistance

ElPaso 3B 2 3 Electric Resistance

ElPaso 3B 2 3 Electric Resistance

ElPaso 3B 2 3 Electric Resistance

ElPaso 3B 2 3 Electric Resistance

ElPaso 3B 2 3 Electric Resistance

SanFrancisco 3C 2 3 Electric Resistance

SanFrancisco 3C 2 3 Electric Resistance

SanFrancisco 3C 2 3 Electric Resistance

SanFrancisco 3C 2 3 Electric Resistance

SanFrancisco 3C 2 3 Electric Resistance

Baltimore 4A 3 2 Electric Resistance

Baltimore 4A 3 2 Electric Resistance

Baltimore 4A 3 2 Electric Resistance

Baltimore 4A 3 2 Electric Resistance

Baltimore 4A 3 2 Electric Resistance

Albuquerque 4B 2 2 Electric Resistance

Albuquerque 4B 2 2 Electric Resistance

Albuquerque 4B 2 2 Electric Resistance

Albuquerque 4B 2 2 Electric Resistance

Albuquerque 4B 2 2 Electric Resistance

Salem 4C 3 2 Electric Resistance

Salem 4C 3 2 Electric Resistance

Salem 4C 3 2 Electric Resistance

Salem 4C 3 2 Electric Resistance

Salem 4C 3 2 Electric Resistance

Chicago 5A 3 2 Electric Resistance

Chicago 5A 3 2 Electric Resistance

Chicago 5A 3 2 Electric Resistance

Chicago 5A 3 2 Electric Resistance

Chicago 5A 3 2 Electric Resistance

Boise 5B 3 2 Electric Resistance

Boise 5B 3 2 Electric Resistance

Boise 5B 3 2 Electric Resistance

Boise 5B 3 2 Electric Resistance
Boise 5B

32 Electric Resistance

Burlington 6A31 Electric Resistance

Burlington 6A31 Electric Resistance

Burlington 6A31 Electric Resistance

Burlington 6A31 Electric Resistance

Burlington 6A31 Electric Resistance

Helena 6B31 Electric Resistance

Helena 6B31 Electric Resistance

Helena 6B31 Electric Resistance

Helena 6B31 Electric Resistance

Helena 6B31 Electric Resistance

Duluth731 Electric Resistance

Duluth731 Electric Resistance

Duluth731 Electric Resistance

Duluth731 Electric Resistance

Duluth731 Electric Resistance

Fairbanks831 Electric Resistance

Fairbanks831 Electric Resistance

Fairbanks831 Electric Resistance

Fairbanks831 Electric Resistance

Fairbanks831 Electric Resistance
t from the primary drivers of energy efficiency measures, they only comprise a small portion of the 

e-wide manufactured homes (Heating System: Electric resistance) 

Enduse HUD Code IECC 2006 IECC 2009 IECC 2012 IECC 2015 EStar RN1Package1

Heating 1.26 1.31 1.30 0.94 0.94 1.04 0.76

Cooling 20.81 18.74 17.56 15.72 15.72 17.27 15.61

Interior Lighting 3.08 3.08 2.55 2.25 2.25 3.08 2.25

Domestic Hot Water 6.48 6.48 6.48 5.93 5.88 6.48 5.92

Sum 31.63 29.62 27.90 24.86 24.81 27.88 24.55

Heating 10.59 10.26 9.95 7.93 7.93 7.32 7.42

Cooling 15.36 13.40 12.16 11.34 11.34 12.02 11.33

Interior Lighting 3.08 3.08 2.55 2.25 2.25 3.08 2.25

Domestic Hot Water 8.07 8.08 8.08 7.37 7.30 8.07 7.35

Sum 37.10 34.81 32.74 28.89 28.82 30.45 28.34

Heating 6.24 6.56 6.44 5.07 5.07 4.31 3.60

Cooling 20.00 19.23 17.39 15.99 15.99 16.62 14.83

Interior Lighting 3.08 3.08 2.55 2.25 2.25 3.08 2.25

Domestic Hot Water 6.76 6.76 6.76 6.19 6.13 6.76 6.17

Sum 36.07 35.64 33.14 29.51 29.46 30.72 26.82

Heating 20.63 20.94 19.69 12.33 12.33 NA 13.82

Cooling 10.94 10.19 9.29 8.20 8.20 NA 8.37

Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA 2.25

Domestic Hot Water 9.35 9.35 9.35 8.52 8.44 NA 8.50

Sum 44.00 43.57 40.90 31.23 31.15 NA 32.91

Heating 13.40 13.64 12.96 7.51 7.51 NA 8.38

Cooling 11.39 10.42 9.37 8.29 8.29 NA 8.36

Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA 2.25

Domestic Hot Water 8.98 8.98 8.98 8.19 8.11 NA 8.17

Sum 36.84 36.12 33.86 26.16 26.08 NA 27.11

Heating 15.83 16.24 15.29 7.87 7.87 NA 9.13

Cooling 2.50 1.94 1.58 1.69 1.69 NA 1.52

Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA 2.25

Domestic Hot Water 10.57 10.58 10.58 9.62 9.53 NA 9.60

Sum 31.99 31.85 30.00 21.34 21.24 NA 22.42

Heating 31.64 30.39 28.38 19.05 19.05 NA 21.46

Cooling 6.94 6.31 6.20 5.69 5.69 NA 5.72

Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA 2.25

Domestic Hot Water 10.81 10.81 10.81 9.83 9.73 NA 9.81

Sum 52.46 50.61 47.96 36.77 36.68 NA 39.23

Heating 23.68 21.73 20.27 13.08 13.08 NA 15.62

Cooling 7.51 6.65 6.59 6.09 6.09 NA 5.42

Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA 2.25

Domestic Hot Water 10.62 10.62 10.62 9.66 9.57 NA 9.64

Sum 44.90 42.07 40.00 30.95 30.86 NA 32.84

Heating 30.66 25.78 23.45 17.36 17.36 NA 20.19

Cooling 3.84 3.07 3.03 3.09 3.09 NA 2.99

Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA 2.25

Domestic Hot Water 11.37 11.37 11.37 10.34 10.23 NA 10.31

Sum 48.95 43.30 40.38 32.96 32.86 NA 35.71

Heating 47.30 40.63 37.87 28.22 28.22 NA 32.62

Cooling 5.40 4.72 4.60 4.48 4.48 NA 4.44

Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA 2.25

Domestic Hot Water 12.03 12.03 12.03 10.94 10.83 NA 10.91

Sum 67.81 60.46 57.05 45.80 45.70 NA 50.20

Heating 34.01 28.27 26.37 19.86 19.86 NA 22.81

Cooling 5.49 4.54 4.44 4.41 4.41 NA 4.33

Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA 2.25

Domestic Hot Water 11.57 11.57 11.57 10.52 10.41 NA 10.49
Sum 54.15 47.46 44.91 36.96 36.86 NA 39.85

Heating 54.47 46.91 43.76 30.70 30.70 NA 37.77

Cooling 3.58 3.07 3.01 2.97 2.97 NA 2.95

Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA 2.25

Domestic Hot Water 12.84 12.84 12.84 11.66 11.55 NA 11.64

Sum 73.97 65.90 62.15 47.47 47.35 NA 54.58

Heating 48.59 41.08 38.41 27.20 27.20 NA 33.41

Cooling 3.53 2.87 2.82 2.78 2.78 NA 2.78

Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA 2.25

Domestic Hot Water 13.11 13.11 13.11 11.90 11.78 NA 11.88

Sum 68.31 60.14 56.88 44.03 43.91 NA 50.30

Heating 73.27 62.51 58.87 41.60 41.60 NA 51.00

Cooling 2.45 2.01 1.99 1.99 1.99 NA 1.97

Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA 2.25

Domestic Hot Water 14.31 14.31 14.31 12.98 12.85 NA 12.95

Sum 93.10 81.90 77.70 58.68 58.55 NA 68.13

Heating 104.10 89.37 84.67 62.53 62.53 NA 74.46

Cooling 1.83 1.45 1.44 1.47 1.47 NA 1.44

Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA 2.25

Domestic Hot Water 16.13 16.13 16.13 14.62 14.47 NA 14.59

Sum 125.14 110.05 104.82 80.80 80.66 NA 92.78
e a small portion of the requirements set forth in the IECC.

Table 2B. Annual EUI (kBtu/sf/yr) associated with the HUD Code and the IECC Codes for s

RN1Package2RN1Package3RN1Package4 City Name IECC Climate Zone HUD Zone

0.76 0.76 0.76 Miami 1A 1

15.59 15.61 15.59 Miami 1A 1

2.25 2.25 2.25 Miami 1A 1

5.92 5.92 5.92 Miami 1A 1

24.53 24.55 24.53 0.7756349 Miami 1A 1

7.42 7.42 7.42 Houston 2A 1

11.31 11.33 11.31 Houston 2A 1

2.25 2.25 2.25 Houston 2A 1

7.35 7.35 7.35 Houston 2A 1

28.33 28.34 28.33 0.76346598 Houston 2A 1

3.60 3.60 3.60 Phoenix 2B 2

14.81 14.83 14.81 Phoenix 2B 2

2.25 2.25 2.25 Phoenix 2B 2

6.17 6.17 6.17 Phoenix 2B 2

26.80 26.82 26.80 0.74298607 Phoenix 2B 2

13.84 13.82 13.84 Memphis 3A 2

8.35 8.37 8.35 Memphis 3A 2

2.25 2.25 2.25 Memphis 3A 2

8.50 8.50 8.50 Memphis 3A 2

32.91 32.91 32.91 0.74793868 Memphis 3A 2

8.39 8.38 8.39 ElPaso 3B 2

8.35 8.36 8.35 ElPaso 3B 2

2.25 2.25 2.25 ElPaso 3B 2

8.17 8.17 8.17 ElPaso 3B 2

27.10 27.11 27.10 0.73548679 ElPaso 3B 2

9.14 9.13 9.14 SanFrancisco 3C 2

1.52 1.52 1.52 SanFrancisco 3C 2

2.25 2.25 2.25 SanFrancisco 3C 2

9.60 9.60 9.60 SanFrancisco 3C 2

22.43 22.42 22.43 0.70139792 SanFrancisco 3C 2

21.46 21.61 21.61 Baltimore 4A 3

5.72 5.74 5.74 Baltimore 4A 3

2.25 2.25 2.25 Baltimore 4A 3

9.81 9.81 9.81 Baltimore 4A 3

39.23 39.40 39.40 0.75091928 Baltimore 4A 3

15.65 15.62 15.65 Albuquerque 4B 2

5.41 5.42 5.41 Albuquerque 4B 2

2.25 2.25 2.25 Albuquerque 4B 2

9.64 9.64 9.64 Albuquerque 4B 2

32.86 32.84 32.86 0.73196644 Albuquerque 4B 2

20.19 20.35 20.35 Salem 4C 3

2.99 3.01 3.01 Salem 4C 3

2.25 2.25 2.25 Salem 4C 3

10.31 10.31 10.31 Salem 4C 3

35.71 35.90 35.90 0.73339719 Salem 4C 3

32.62 32.81 32.81 Chicago 5A 3

4.44 4.46 4.46 Chicago 5A 3

2.25 2.25 2.25 Chicago 5A 3

10.91 10.91 10.91 Chicago 5A 3

50.20 50.40 50.40 0.7432753 Chicago 5A 3

22.81 22.98 22.98 Boise 5B 3

4.33 4.35 4.35 Boise 5B 3

2.25 2.25 2.25 Boise 5B 3

10.49 10.49 10.49 Boise 5B 3
39.85 40.05 40.05 0.73963717 Boise 5B

3

37.77 37.98 37.98 Burlington 6A3

2.95 2.96 2.96 Burlington 6A3

2.25 2.25 2.25 Burlington 6A3

11.64 11.64 11.64 Burlington 6A3

54.58 54.81 54.81 0.74094595 Burlington 6A3

33.41 33.64 33.64 Helena 6B3

2.78 2.80 2.80 Helena 6B3

2.25 2.25 2.25 Helena 6B3

11.88 11.88 11.88 Helena 6B3

50.30 50.55 50.55 0.7400469 Helena 6B3

51.00 51.27 51.27 Duluth73

1.97 1.98 1.98 Duluth73

2.25 2.25 2.25 Duluth73

12.95 12.95 12.95 Duluth73

68.13 68.41 68.41 0.73480999 Duluth73

74.46 74.83 74.83 Fairbanks83

1.44 1.45 1.45 Fairbanks83

2.25 2.25 2.25 Fairbanks83

14.59 14.59 14.59 Fairbanks83

92.78 93.17 93.17 0.74453642 Fairbanks83
 the HUD Code and the IECC Codes for single-wide manufactured homes (Heating System: Heat Pump) 

EStar Zone Heating System Enduse HUD Code IECC 2006 IECC 2009 IECC 2012

4 Heat Pump Heating 0.44 0.45 0.44 0.32

4 Heat Pump Cooling 20.76 18.70 17.52 15.67

4 Heat Pump Interior Lighting 3.08 3.08 2.55 2.25

4 Heat Pump Domestic Hot Water 6.48 6.48 6.48 5.93

4 Heat Pump Sum 30.75 28.71 27.01 24.20

4 Heat Pump Heating 4.72 4.52 4.36 3.62

4 Heat Pump Cooling 15.32 13.36 12.13 11.31

4 Heat Pump Interior Lighting 3.08 3.08 2.55 2.25

4 Heat Pump Domestic Hot Water 8.07 8.08 8.08 7.37

4 Heat Pump Sum 31.19 29.04 27.12 24.55

4 Heat Pump Heating 2.66 2.76 2.69 2.22

4 Heat Pump Cooling 19.88 19.10 17.27 15.89

4 Heat Pump Interior Lighting 3.08 3.08 2.55 2.25

4 Heat Pump Domestic Hot Water 6.76 6.76 6.76 6.19

4 Heat Pump Sum 32.38 31.70 29.28 26.55

3 Heat Pump Heating 9.74 9.79 9.21 6.19

3 Heat Pump Cooling 10.89 10.14 9.24 8.16

3 Heat Pump Interior Lighting 3.08 3.08 2.55 2.25

3 Heat Pump Domestic Hot Water 9.35 9.35 9.35 8.52

3 Heat Pump Sum 33.05 32.35 30.34 25.06

3 Heat Pump Heating 6.22 6.24 5.94 3.99

3 Heat Pump Cooling 11.33 10.34 9.30 8.24

3 Heat Pump Interior Lighting 3.08 3.08 2.55 2.25

3 Heat Pump Domestic Hot Water 8.98 8.98 8.98 8.19

3 Heat Pump Sum 29.60 28.64 26.76 22.62

3 Heat Pump Heating 5.96 6.04 5.68 3.27

3 Heat Pump Cooling 2.57 1.99 1.62 1.75

3 Heat Pump Interior Lighting 3.08 3.08 2.55 2.25

3 Heat Pump Domestic Hot Water 10.57 10.58 10.58 9.62

3 Heat Pump Sum 22.19 21.68 20.42 16.84

2 Heat Pump Heating 15.44 14.83 13.89 9.76

2 Heat Pump Cooling 6.93 6.31 6.20 5.69

2 Heat Pump Interior Lighting 3.08 3.08 2.55 2.25

2 Heat Pump Domestic Hot Water 10.81 10.81 10.81 9.83

2 Heat Pump Sum 36.26 35.01 33.43 27.46

2 Heat Pump Heating 11.57 10.68 10.08 7.23

2 Heat Pump Cooling 7.49 6.62 6.56 6.07

2 Heat Pump Interior Lighting 3.08 3.08 2.55 2.25

2 Heat Pump Domestic Hot Water 10.62 10.62 10.62 9.66

2 Heat Pump Sum 32.76 30.97 29.77 25.12

2 Heat Pump Heating 14.84 12.76 11.77 9.28

2 Heat Pump Cooling 3.87 3.09 3.05 3.12

2 Heat Pump Interior Lighting 3.08 3.08 2.55 2.25

2 Heat Pump Domestic Hot Water 11.37 11.37 11.37 10.34

2 Heat Pump Sum 33.16 30.28 28.72 24.93

2 Heat Pump Heating 27.20 23.58 21.99 16.58

2 Heat Pump Cooling 5.40 4.72 4.61 4.49

2 Heat Pump Interior Lighting 3.08 3.08 2.55 2.25

2 Heat Pump Domestic Hot Water 12.03 12.03 12.03 10.94

2 Heat Pump Sum 47.71 43.34 41.08 34.04

2 Heat Pump Heating 17.86 15.15 14.25 11.32

2 Heat Pump Cooling 5.49 4.55 4.44 4.42

2 Heat Pump Interior Lighting 3.08 3.08 2.55 2.25

2 Heat Pump Domestic Hot Water 11.57 11.57 11.57 10.52
2 Heat Pump Sum 38.00 34.32 32.78 28.42 1 Heat Pump Heating 33.28 28.87 26.96 18.82 1 Heat Pump Cooling 3.60 3.10 3.03 3.00 1 Heat Pump Interior Lighting 3.08 3.08 2.55 2.25 1 Heat Pump Domestic Hot Water 12.84 12.84 12.84 11.66 1 Heat Pump Sum 52.81 47.81 45.27 35.48 1 Heat Pump Heating 29.09 24.98 23.41 17.08 1 Heat Pump Cooling 3.53 2.87 2.82 2.79 1 Heat Pump Interior Lighting 3.08 3.08 2.55 2.25 1 Heat Pump Domestic Hot Water 13.11 13.11 13.11 11.90 1 Heat Pump Sum 48.82 43.96 41.78 33.78 1 Heat Pump Heating 51.09 43.77 41.34 29.92 1 Heat Pump Cooling 2.47 2.03 2.01 2.02 1 Heat Pump Interior Lighting 3.08 3.08 2.55 2.25 1 Heat Pump Domestic Hot Water 14.31 14.31 14.31 12.98 1 Heat Pump Sum 70.94 63.10 60.11 46.91 1 Heat Pump Heating 86.69 74.86 71.11 53.55 1 Heat Pump Cooling 1.85 1.46 1.46 1.50 1 Heat Pump Interior Lighting 3.08 3.08 2.55 2.25 1 Heat Pump Domestic Hot Water 16.13 16.13 16.13 14.62 1 Heat Pump Sum 107.75 95.50 91.21 71.76
Table 2C. Annual EUI (kBtu/sf/yr) associated with t

IECC 2015 EStar RN1Package1RN1Package2RN1Package3RN1Package4 City Name

0.32 0.36 0.27 0.27 0.27 0.27 Miami

15.67 17.22 15.57 15.56 15.57 15.56 Miami

2.25 3.08 2.25 2.25 2.25 2.25 Miami

5.88 6.48 5.92 5.92 5.92 5.92 Miami

24.15 27.15 24.03 24.01 24.03 24.01 0.78075112 Miami

3.62 3.43 3.44 3.44 3.44 3.44 Houston

11.31 11.99 11.30 11.28 11.30 11.28 Houston

2.25 3.08 2.25 2.25 2.25 2.25 Houston

7.30 8.07 7.35 7.35 7.35 7.35 Houston

24.48 26.54 24.34 24.33 24.34 24.33 0.77989522 Houston

2.22 1.97 1.71 1.71 1.71 1.71 Phoenix

15.89 16.50 14.73 14.72 14.73 14.72 Phoenix

2.25 3.08 2.25 2.25 2.25 2.25 Phoenix

6.13 6.76 6.17 6.17 6.17 6.17 Phoenix

26.49 28.27 24.85 24.83 24.85 24.83 0.76697108 Phoenix

6.19 NA 6.79 6.79 6.79 6.79 Memphis

8.16 NA 8.33 8.32 8.33 8.32 Memphis

2.25 NA 2.25 2.25 2.25 2.25 Memphis

8.44 NA 8.50 8.50 8.50 8.50 Memphis

24.98 NA 25.83 25.82 25.83 25.82 0.78117336 Memphis

3.99 NA 4.29 4.29 4.29 4.29 ElPaso

8.24 NA 8.31 8.29 8.31 8.29 ElPaso

2.25 NA 2.25 2.25 2.25 2.25 ElPaso

8.11 NA 8.17 8.17 8.17 8.17 ElPaso

22.54 NA 22.98 22.96 22.98 22.96 0.77566285 ElPaso

3.27 NA 3.67 3.67 3.67 3.67 SanFrancisco

1.75 NA 1.57 1.56 1.57 1.56 SanFrancisco

2.25 NA 2.25 2.25 2.25 2.25 SanFrancisco

9.53 NA 9.60 9.60 9.60 9.60 SanFrancisco

16.75 NA 17.04 17.04 17.04 17.04 0.76790665 SanFrancisco

9.76 NA 10.78 10.78 10.84 10.84 Baltimore

5.69 NA 5.72 5.72 5.74 5.74 Baltimore

2.25 NA 2.25 2.25 2.25 2.25 Baltimore

9.73 NA 9.81 9.81 9.81 9.81 Baltimore

27.36 NA 28.50 28.50 28.59 28.59 0.78846661 Baltimore

7.23 NA 8.08 8.08 8.08 8.08 Albuquerque

6.07 NA 5.39 5.38 5.39 5.38 Albuquerque

2.25 NA 2.25 2.25 2.25 2.25 Albuquerque

9.57 NA 9.64 9.64 9.64 9.64 Albuquerque

25.02 NA 25.27 25.26 25.27 25.26 0.77128572 Albuquerque

9.28 NA 10.38 10.38 10.45 10.45 Salem

3.12 NA 3.01 3.01 3.03 3.03 Salem

2.25 NA 2.25 2.25 2.25 2.25 Salem

10.24 NA 10.31 10.31 10.31 10.31 Salem

24.83 NA 25.92 25.92 26.01 26.01 0.78437895 Salem

16.58 NA 18.99 18.99 19.09 19.09 Chicago

4.49 NA 4.45 4.45 4.47 4.47 Chicago

2.25 NA 2.25 2.25 2.25 2.25 Chicago

10.83 NA 10.91 10.91 10.91 10.91 Chicago

33.93 NA 36.41 36.41 36.52 36.52 0.76549298 Chicago

11.32 NA 12.59 12.59 12.67 12.67 Boise

4.42 NA 4.34 4.34 4.36 4.36 Boise

2.25 NA 2.25 2.25 2.25 2.25 Boise

10.41 NA 10.49 10.49 10.49 10.49 Boise
28.32 NA 29.61 29.61 29.71 29.71 0.78186095 Boise

18.82 NA 23.07 23.07 23.19 23.19 Burlington

3.00 NA 2.98 2.98 2.99 2.99 Burlington

2.25 NA 2.25 2.25 2.25 2.25 Burlington

11.55 NA 11.64 11.64 11.64 11.64 Burlington

35.37 NA 39.74 39.74 39.87 39.87 0.75495778 Burlington

17.08 NA 20.48 20.48 20.60 20.60 Helena

2.79 NA 2.79 2.79 2.80 2.80 Helena

2.25 NA 2.25 2.25 2.25 2.25 Helena

11.78 NA 11.88 11.88 11.88 11.88 Helena

33.67 NA 37.20 37.20 37.34 37.34 0.76493135 Helena

29.92 NA 36.11 36.11 36.29 36.29 Duluth

2.02 NA 2.00 2.00 2.00 2.00 Duluth

2.25 NA 2.25 2.25 2.25 2.25 Duluth

12.85 NA 12.95 12.95 12.95 12.95 Duluth

46.79 NA 53.11 53.11 53.31 53.31 0.75145796 Duluth

53.55 NA 62.93 62.93 63.22 63.22 Fairbanks

1.50 NA 1.46 1.46 1.47 1.47 Fairbanks

2.25 NA 2.25 2.25 2.25 2.25 Fairbanks

14.47 NA 14.59 14.59 14.59 14.59 Fairbanks

71.61 NA 81.16 81.16 81.46 81.46 0.7560671 Fairbanks
le 2C. Annual EUI (kBtu/sf/yr) associated with the HUD Code and the IECC Codes for single-wide manufactured homes (Heating System: Natural Gas Furnace

IECC Climate Zone HUD Zone EStar Zone Heating System Enduse

1A 1 4 Natural Gas Furnace Heating

1A 1 4 Natural Gas Furnace Cooling

1A 1 4 Natural Gas Furnace Interior Lighting

1A 1 4 Natural Gas Furnace Domestic Hot Water

1A 1 4 Natural Gas Furnace Sum

2A 1 4 Natural Gas Furnace Heating

2A 1 4 Natural Gas Furnace Cooling

2A 1 4 Natural Gas Furnace Interior Lighting

2A 1 4 Natural Gas Furnace Domestic Hot Water

2A 1 4 Natural Gas Furnace Sum

2B 2 4 Natural Gas Furnace Heating

2B 2 4 Natural Gas Furnace Cooling

2B 2 4 Natural Gas Furnace Interior Lighting

2B 2 4 Natural Gas Furnace Domestic Hot Water

2B 2 4 Natural Gas Furnace Sum

3A 2 3 Natural Gas Furnace Heating

3A 2 3 Natural Gas Furnace Cooling

3A 2 3 Natural Gas Furnace Interior Lighting

3A 2 3 Natural Gas Furnace Domestic Hot Water

3A 2 3 Natural Gas Furnace Sum

3B 2 3 Natural Gas Furnace Heating

3B 2 3 Natural Gas Furnace Cooling

3B 2 3 Natural Gas Furnace Interior Lighting

3B 2 3 Natural Gas Furnace Domestic Hot Water

3B 2 3 Natural Gas Furnace Sum

3C 2 3 Natural Gas Furnace Heating

3C 2 3 Natural Gas Furnace Cooling

3C 2 3 Natural Gas Furnace Interior Lighting

3C 2 3 Natural Gas Furnace Domestic Hot Water

3C 2 3 Natural Gas Furnace Sum

4A 3 2 Natural Gas Furnace Heating

4A 3 2 Natural Gas Furnace Cooling

4A 3 2 Natural Gas Furnace Interior Lighting

4A 3 2 Natural Gas Furnace Domestic Hot Water

4A 3 2 Natural Gas Furnace Sum

4B 2 2 Natural Gas Furnace Heating

4B 2 2 Natural Gas Furnace Cooling

4B 2 2 Natural Gas Furnace Interior Lighting

4B 2 2 Natural Gas Furnace Domestic Hot Water

4B 2 2 Natural Gas Furnace Sum

4C 3 2 Natural Gas Furnace Heating

4C 3 2 Natural Gas Furnace Cooling

4C 3 2 Natural Gas Furnace Interior Lighting

4C 3 2 Natural Gas Furnace Domestic Hot Water

4C 3 2 Natural Gas Furnace Sum

5A 3 2 Natural Gas Furnace Heating

5A 3 2 Natural Gas Furnace Cooling

5A 3 2 Natural Gas Furnace Interior Lighting

5A 3 2 Natural Gas Furnace Domestic Hot Water

5A 3 2 Natural Gas Furnace Sum

5B 3 2 Natural Gas Furnace Heating

5B 3 2 Natural Gas Furnace Cooling

5B 3 2 Natural Gas Furnace Interior Lighting

5B 3 2 Natural Gas Furnace Domestic Hot Water
5B

32 Natural Gas Furnace Sum

6A31 Natural Gas Furnace Heating

6A31 Natural Gas Furnace Cooling

6A31 Natural Gas Furnace Interior Lighting

6A31 Natural Gas Furnace Domestic Hot Water

6A31 Natural Gas Furnace Sum

6B31 Natural Gas Furnace Heating

6B31 Natural Gas Furnace Cooling

6B31 Natural Gas Furnace Interior Lighting

6B31 Natural Gas Furnace Domestic Hot Water

6B31 Natural Gas Furnace Sum

731 Natural Gas Furnace Heating

731 Natural Gas Furnace Cooling

731 Natural Gas Furnace Interior Lighting

731 Natural Gas Furnace Domestic Hot Water

731 Natural Gas Furnace Sum

831 Natural Gas Furnace Heating

831 Natural Gas Furnace Cooling

831 Natural Gas Furnace Interior Lighting

831 Natural Gas Furnace Domestic Hot Water

831 Natural Gas Furnace Sum
(Heating System: Natural Gas Furnace) 

HUD Code IECC 2006 IECC 2009 IECC 2012 IECC 2015 EStar RN1Package1RN1Package2RN1Package3

1.36 1.42 1.40 0.97 0.97 1.10 0.76 0.76 0.76

21.99 19.91 18.72 16.84 16.84 19.69 16.75 16.73 16.75

3.08 3.08 2.55 2.25 2.25 3.08 2.25 2.25 2.25

12.39 12.39 12.39 11.71 11.64 12.39 11.69 11.69 11.69

38.82 36.81 35.07 31.79 31.72 36.31 31.46 31.44 31.46

12.65 12.22 11.80 9.27 9.27 10.54 8.63 8.64 8.63

16.24 14.26 13.01 12.19 12.19 14.46 12.18 12.16 12.18

3.08 3.08 2.55 2.25 2.25 3.08 2.25 2.25 2.25

14.45 14.45 14.45 13.57 13.48 14.45 13.54 13.54 13.54

46.41 44.01 41.82 37.26 37.17 42.53 36.58 36.56 36.58

7.09 7.50 7.32 5.65 5.65 6.54 3.85 3.85 3.85

20.91 20.12 18.27 16.86 16.86 20.48 15.72 15.71 15.72

3.08 3.08 2.55 2.25 2.25 3.08 2.25 2.25 2.25

12.79 12.79 12.80 12.08 12.01 12.79 12.05 12.05 12.05

43.87 43.50 40.94 36.83 36.76 42.93 33.82 33.80 33.82

25.33 25.74 24.11 14.62 14.62 NA 16.55 16.57 16.55

11.64 10.87 9.97 8.89 8.89 NA 9.05 9.04 9.05

3.08 3.08 2.55 2.25 2.25 NA 2.25 2.25 2.25

16.08 16.08 16.08 15.03 14.93 NA 15.01 15.01 15.01

56.12 55.79 52.73 40.69 40.59 NA 42.80 42.81 42.80

15.98 16.28 15.37 8.50 8.50 NA 9.59 9.60 9.59

12.14 11.14 10.07 9.03 9.03 NA 9.09 9.08 9.09

3.08 3.08 2.55 2.25 2.25 NA 2.25 2.25 2.25

15.60 15.60 15.60 14.60 14.50 NA 14.58 14.58 14.58

46.79 46.10 43.60 34.26 34.16 NA 35.42 35.41 35.42

17.96 18.44 17.16 8.00 8.00 NA 9.50 9.52 9.50

2.85 2.26 1.88 2.08 2.08 NA 1.87 1.87 1.87

3.08 3.08 2.55 2.25 2.25 NA 2.25 2.25 2.25

17.67 17.68 17.68 16.45 16.34 NA 16.44 16.44 16.44

41.56 41.47 39.28 28.64 28.52 NA 29.94 29.96 29.94

39.21 37.61 34.99 22.91 22.91 NA 26.03 26.03 26.22

7.46 6.82 6.71 6.21 6.21 NA 6.24 6.24 6.26

3.08 3.08 2.55 2.25 2.25 NA 2.25 2.25 2.25

17.94 17.94 17.94 16.71 16.59 NA 16.68 16.68 16.68

67.69 65.48 62.22 47.99 47.88 NA 51.17 51.17 51.38

28.87 26.36 24.48 15.32 15.32 NA 18.50 18.53 18.50

8.08 7.21 7.15 6.69 6.69 NA 5.98 5.97 5.98

3.08 3.08 2.55 2.25 2.25 NA 2.25 2.25 2.25

17.69 17.69 17.69 16.47 16.35 NA 16.46 16.46 16.46

57.72 54.31 51.83 40.53 40.42 NA 43.04 43.07 43.04

37.19 30.93 27.92 20.14 20.14 NA 23.77 23.77 23.98

4.17 3.39 3.36 3.45 3.45 NA 3.33 3.33 3.35

3.08 3.08 2.55 2.25 2.25 NA 2.25 2.25 2.25

18.68 18.68 18.67 17.37 17.24 NA 17.35 17.35 17.35

63.11 56.08 52.49 43.11 42.98 NA 46.65 46.65 46.88

59.68 50.98 47.36 34.75 34.75 NA 40.52 40.52 40.76

5.83 5.16 5.05 4.94 4.94 NA 4.89 4.89 4.91

3.08 3.08 2.55 2.25 2.25 NA 2.25 2.25 2.25

19.50 19.49 19.49 18.11 17.97 NA 18.08 18.08 18.08

88.09 78.72 74.45 59.92 59.78 NA 65.69 65.69 65.95

41.92 34.50 32.03 23.67 23.67 NA 27.47 27.47 27.70

5.88 4.94 4.84 4.83 4.83 NA 4.73 4.73 4.75

3.08 3.08 2.55 2.25 2.25 NA 2.25 2.25 2.25

18.92 18.91 18.91 17.59 17.46 NA 17.56 17.56 17.56
69.80 61.42 58.31 48.21 48.09 NA 51.96 51.96 52.22

68.90 59.03 54.90 37.81 37.81 NA 47.08 47.08 47.36

3.92 3.41 3.36 3.35 3.35 NA 3.31 3.31 3.32

3.08 3.08 2.55 2.25 2.25 NA 2.25 2.25 2.25

20.53 20.52 20.52 19.04 18.89 NA 19.01 19.01 19.01

96.42 86.04 81.32 62.26 62.12 NA 71.59 71.59 71.88

60.94 51.16 47.67 33.10 33.10 NA 41.19 41.19 41.49

3.83 3.17 3.12 3.13 3.13 NA 3.10 3.10 3.11

3.08 3.08 2.55 2.25 2.25 NA 2.25 2.25 2.25

20.87 20.86 20.86 19.34 19.19 NA 19.31 19.31 19.31

88.71 78.28 74.20 57.65 57.51 NA 65.83 65.83 66.14

93.43 79.34 74.57 52.02 52.02 NA 64.32 64.32 64.68

2.69 2.27 2.25 2.28 2.28 NA 2.23 2.23 2.24

3.08 3.08 2.55 2.25 2.25 NA 2.25 2.25 2.25

22.38 22.38 22.37 20.70 20.54 NA 20.67 20.67 20.67

121.57 107.06 101.73 77.03 76.87 NA 89.40 89.40 89.77

134.11 114.73 108.57 79.57 79.57 NA 95.23 95.23 95.73

2.03 1.64 1.65 1.71 1.71 NA 1.65 1.65 1.66

3.08 3.08 2.55 2.25 2.25 NA 2.25 2.25 2.25

24.67 24.67 24.67 22.77 22.58 NA 22.73 22.73 22.73

163.89 144.17 137.47 106.17 105.99 NA 121.92 121.92 122.42
Table 2D. Annual EUI (kBtu/sf/yr) associated with the HUD Code and the IECC Codes for single-wide manufactured h

RN1Package4 City Name IECC Climate Zone HUD Zone EStar Zone

0.76 Miami 1A 1 4

16.73 Miami 1A 1 4

2.25 Miami 1A 1 4

11.69 Miami 1A 1 4

31.44 0.80987002 Miami 1A 1 4

8.64 Houston 2A 1 4

12.16 Houston 2A 1 4

2.25 Houston 2A 1 4

13.54 Houston 2A 1 4

36.56 0.78783621 Houston 2A 1 4

3.85 Phoenix 2B 2 4

15.71 Phoenix 2B 2 4

2.25 Phoenix 2B 2 4

12.05 Phoenix 2B 2 4

33.80 0.77047916 Phoenix 2B 2 4

16.57 Memphis 3A 2 3

9.04 Memphis 3A 2 3

2.25 Memphis 3A 2 3

15.01 Memphis 3A 2 3

42.81 0.76274569 Memphis 3A 2 3

9.60 ElPaso 3B 2 3

9.08 ElPaso 3B 2 3

2.25 ElPaso 3B 2 3

14.58 ElPaso 3B 2 3

35.41 0.75673721 ElPaso 3B 2 3

9.52 SanFrancisco 3C 2 3

1.87 SanFrancisco 3C 2 3

2.25 SanFrancisco 3C 2 3

16.44 SanFrancisco 3C 2 3

29.96 0.72098313 SanFrancisco 3C 2 3

26.22 Baltimore 4A 3 2

6.26 Baltimore 4A 3 2

2.25 Baltimore 4A 3 2

16.68 Baltimore 4A 3 2

51.38 0.7590999 Baltimore 4A 3 2

18.53 Albuquerque 4B 2 2

5.97 Albuquerque 4B 2 2

2.25 Albuquerque 4B 2 2

16.46 Albuquerque 4B 2 2

43.07 0.74618154 Albuquerque 4B 2 2

23.98 Salem 4C 3 2

3.35 Salem 4C 3 2

2.25 Salem 4C 3 2

17.35 Salem 4C 3 2

46.88 0.74282303 Salem 4C 3 2

40.76 Chicago 5A 3 2

4.91 Chicago 5A 3 2

2.25 Chicago 5A 3 2

18.08 Chicago 5A 3 2

65.95 0.74875055 Chicago 5A 3 2

27.70 Boise 5B 3 2

4.75 Boise 5B 3 2

2.25 Boise 5B 3 2

17.56 Boise 5B 3 2
52.22 0.74810142 Boise 5B

32

47.36 Burlington 6A31

3.32 Burlington 6A31

2.25 Burlington 6A31

19.01 Burlington 6A31

71.88 0.74550016 Burlington 6A31

41.49 Helena 6B31

3.11 Helena 6B31

2.25 Helena 6B31

19.31 Helena 6B31

66.14 0.74556953 Helena 6B31

64.68 Duluth731

2.24 Duluth731

2.25 Duluth731

20.67 Duluth731

89.77 0.73838102 Duluth731

95.73 Fairbanks831

1.66 Fairbanks831

2.25 Fairbanks831

22.73 Fairbanks831

122.42 0.74700087 Fairbanks831
e IECC Codes for single-wide manufactured homes (Heating System: LPG Furnace) 

Heating System Enduse HUD Code IECC 2006 IECC 2009 IECC 2012 IECC 2015 EStar

LPG Furnace Heating 1.36 1.42 1.40 0.97 0.97 1.10

LPG Furnace Cooling 21.99 19.91 18.72 16.84 16.84 19.69

LPG Furnace Interior Lighting 3.08 3.08 2.55 2.25 2.25 3.08

LPG Furnace Domestic Hot Water 12.39 12.39 12.39 11.71 11.64 12.39

LPG Furnace Sum 38.82 36.81 35.07 31.79 31.72 36.31

LPG Furnace Heating 12.65 12.22 11.80 9.27 9.27 10.54

LPG Furnace Cooling 16.24 14.26 13.01 12.19 12.19 14.46

LPG Furnace Interior Lighting 3.08 3.08 2.55 2.25 2.25 3.08

LPG Furnace Domestic Hot Water 14.45 14.45 14.45 13.57 13.48 14.45

LPG Furnace Sum 46.41 44.01 41.82 37.26 37.17 42.53

LPG Furnace Heating 7.09 7.50 7.32 5.65 5.65 6.54

LPG Furnace Cooling 20.91 20.12 18.27 16.86 16.86 20.48

LPG Furnace Interior Lighting 3.08 3.08 2.55 2.25 2.25 3.08

LPG Furnace Domestic Hot Water 12.79 12.79 12.80 12.08 12.01 12.79

LPG Furnace Sum 43.87 43.50 40.94 36.83 36.76 42.93

LPG Furnace Heating 25.33 25.74 24.11 14.62 14.62 NA

LPG Furnace Cooling 11.64 10.87 9.97 8.89 8.89 NA

LPG Furnace Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA

LPG Furnace Domestic Hot Water 16.08 16.08 16.08 15.03 14.93 NA

LPG Furnace Sum 56.12 55.79 52.73 40.69 40.59 NA

LPG Furnace Heating 15.98 16.28 15.37 8.50 8.50 NA

LPG Furnace Cooling 12.14 11.14 10.07 9.03 9.03 NA

LPG Furnace Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA

LPG Furnace Domestic Hot Water 15.60 15.60 15.60 14.60 14.50 NA

LPG Furnace Sum 46.79 46.10 43.60 34.26 34.16 NA

LPG Furnace Heating 17.96 18.44 17.16 8.00 8.00 NA

LPG Furnace Cooling 2.85 2.26 1.88 2.08 2.08 NA

LPG Furnace Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA

LPG Furnace Domestic Hot Water 17.67 17.68 17.68 16.45 16.34 NA

LPG Furnace Sum 41.56 41.47 39.28 28.64 28.52 NA

LPG Furnace Heating 39.21 37.61 34.99 22.91 22.91 NA

LPG Furnace Cooling 7.46 6.82 6.71 6.21 6.21 NA

LPG Furnace Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA

LPG Furnace Domestic Hot Water 17.94 17.94 17.94 16.71 16.59 NA

LPG Furnace Sum 67.69 65.48 62.22 47.99 47.88 NA

LPG Furnace Heating 28.87 26.36 24.48 15.32 15.32 NA

LPG Furnace Cooling 8.08 7.21 7.15 6.69 6.69 NA

LPG Furnace Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA

LPG Furnace Domestic Hot Water 17.69 17.69 17.69 16.47 16.35 NA

LPG Furnace Sum 57.72 54.31 51.83 40.53 40.42 NA

LPG Furnace Heating 37.19 30.93 27.92 20.14 20.14 NA

LPG Furnace Cooling 4.17 3.39 3.36 3.45 3.45 NA

LPG Furnace Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA

LPG Furnace Domestic Hot Water 18.68 18.68 18.67 17.37 17.24 NA

LPG Furnace Sum 63.11 56.08 52.49 43.11 42.98 NA

LPG Furnace Heating 59.68 50.98 47.36 34.75 34.75 NA

LPG Furnace Cooling 5.83 5.16 5.05 4.94 4.94 NA

LPG Furnace Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA

LPG Furnace Domestic Hot Water 19.50 19.49 19.49 18.11 17.97 NA

LPG Furnace Sum 88.09 78.72 74.45 59.92 59.78 NA

LPG Furnace Heating 41.92 34.50 32.03 23.67 23.67 NA

LPG Furnace Cooling 5.88 4.94 4.84 4.83 4.83 NA

LPG Furnace Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA

LPG Furnace Domestic Hot Water 18.92 18.91 18.91 17.59 17.46 NA
LPG Furnace Sum 69.80 61.42 58.31 48.21 48.09 NA

LPG Furnace Heating 68.90 59.03 54.90 37.81 37.81 NA

LPG Furnace Cooling 3.92 3.41 3.36 3.35 3.35 NA

LPG Furnace Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA

LPG Furnace Domestic Hot Water 20.53 20.52 20.52 19.04 18.89 NA

LPG Furnace Sum 96.42 86.04 81.32 62.26 62.12 NA

LPG Furnace Heating 60.94 51.16 47.67 33.10 33.10 NA

LPG Furnace Cooling 3.83 3.17 3.12 3.13 3.13 NA

LPG Furnace Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA

LPG Furnace Domestic Hot Water 20.87 20.86 20.86 19.34 19.19 NA

LPG Furnace Sum 88.71 78.28 74.20 57.65 57.51 NA

LPG Furnace Heating 93.43 79.34 74.57 52.02 52.02 NA

LPG Furnace Cooling 2.69 2.27 2.25 2.28 2.28 NA

LPG Furnace Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA

LPG Furnace Domestic Hot Water 22.38 22.38 22.37 20.70 20.54 NA

LPG Furnace Sum 121.57 107.06 101.73 77.03 76.87 NA

LPG Furnace Heating 134.11 114.73 108.57 79.57 79.57 NA

LPG Furnace Cooling 2.03 1.64 1.65 1.71 1.71 NA

LPG Furnace Interior Lighting 3.08 3.08 2.55 2.25 2.25 NA

LPG Furnace Domestic Hot Water 24.67 24.67 24.67 22.77 22.58 NA

LPG Furnace Sum 163.89 144.17 137.47 106.17 105.99 NA
Table 2E. Annual EUI (kBtu/sf/yr) associated with the HUD Code and the IEC

RN1Package1RN1Package2RN1Package3RN1Package4 City Name IECC Climate Zone HUD Zone

0.76 0.76 0.76 0.76 Miami 1A 1

16.75 16.73 16.75 16.73 Miami 1A 1

2.25 2.25 2.25 2.25 Miami 1A 1

11.69 11.69 11.69 11.69 Miami 1A 1

31.46 31.44 31.46 31.44 0.80987002 Miami 1A 1

8.63 8.64 8.63 8.64 Houston 2A 1

12.18 12.16 12.18 12.16 Houston 2A 1

2.25 2.25 2.25 2.25 Houston 2A 1

13.54 13.54 13.54 13.54 Houston 2A 1

36.58 36.56 36.58 36.56 0.78783621 Houston 2A 1

3.85 3.85 3.85 3.85 Phoenix 2B 2

15.72 15.71 15.72 15.71 Phoenix 2B 2

2.25 2.25 2.25 2.25 Phoenix 2B 2

12.05 12.05 12.05 12.05 Phoenix 2B 2

33.82 33.80 33.82 33.80 0.77047916 Phoenix 2B 2

16.55 16.57 16.55 16.57 Memphis 3A 2

9.05 9.04 9.05 9.04 Memphis 3A 2

2.25 2.25 2.25 2.25 Memphis 3A 2

15.01 15.01 15.01 15.01 Memphis 3A 2

42.80 42.81 42.80 42.81 0.76274569 Memphis 3A 2

9.59 9.60 9.59 9.60 ElPaso 3B 2

9.09 9.08 9.09 9.08 ElPaso 3B 2

2.25 2.25 2.25 2.25 ElPaso 3B 2

14.58 14.58 14.58 14.58 ElPaso 3B 2

35.42 35.41 35.42 35.41 0.75673721 ElPaso 3B 2

9.50 9.52 9.50 9.52 SanFrancisco 3C 2

1.87 1.87 1.87 1.87 SanFrancisco 3C 2

2.25 2.25 2.25 2.25 SanFrancisco 3C 2

16.44 16.44 16.44 16.44 SanFrancisco 3C 2

29.94 29.96 29.94 29.96 0.72098313 SanFrancisco 3C 2

26.03 26.03 26.22 26.22 Baltimore 4A 3

6.24 6.24 6.26 6.26 Baltimore 4A 3

2.25 2.25 2.25 2.25 Baltimore 4A 3

16.68 16.68 16.68 16.68 Baltimore 4A 3

51.17 51.17 51.38 51.38 0.7590999 Baltimore 4A 3

18.50 18.53 18.50 18.53 Albuquerque 4B 2

5.98 5.97 5.98 5.97 Albuquerque 4B 2

2.25 2.25 2.25 2.25 Albuquerque 4B 2

16.46 16.46 16.46 16.46 Albuquerque 4B 2

43.04 43.07 43.04 43.07 0.74618154 Albuquerque 4B 2

23.77 23.77 23.98 23.98 Salem 4C 3

3.33 3.33 3.35 3.35 Salem 4C 3

2.25 2.25 2.25 2.25 Salem 4C 3

17.35 17.35 17.35 17.35 Salem 4C 3

46.65 46.65 46.88 46.88 0.74282303 Salem 4C 3

40.52 40.52 40.76 40.76 Chicago 5A 3

4.89 4.89 4.91 4.91 Chicago 5A 3

2.25 2.25 2.25 2.25 Chicago 5A 3

18.08 18.08 18.08 18.08 Chicago 5A 3

65.69 65.69 65.95 65.95 0.74875055 Chicago 5A 3

27.47 27.47 27.70 27.70 Boise 5B 3

4.73 4.73 4.75 4.75 Boise 5B 3

2.25 2.25 2.25 2.25 Boise 5B 3

17.56 17.56 17.56 17.56 Boise 5B 3
51.96 51.96 52.22 52.22 0.74810142 Boise 5B

3

47.08 47.08 47.36 47.36 Burlington 6A3

3.31 3.31 3.32 3.32 Burlington 6A3

2.25 2.25 2.25 2.25 Burlington 6A3

19.01 19.01 19.01 19.01 Burlington 6A3

71.59 71.59 71.88 71.88 0.74550016 Burlington 6A3

41.19 41.19 41.49 41.49 Helena 6B3

3.10 3.10 3.11 3.11 Helena 6B3

2.25 2.25 2.25 2.25 Helena 6B3

19.31 19.31 19.31 19.31 Helena 6B3

65.83 65.83 66.14 66.14 0.74556953 Helena 6B3

64.32 64.32 64.68 64.68 Duluth73

2.23 2.23 2.24 2.24 Duluth73

2.25 2.25 2.25 2.25 Duluth73

20.67 20.67 20.67 20.67 Duluth73

89.40 89.40 89.77 89.77 0.73838102 Duluth73

95.23 95.23 95.73 95.73 Fairbanks83

1.65 1.65 1.66 1.66 Fairbanks83

2.25 2.25 2.25 2.25 Fairbanks83

22.73 22.73 22.73 22.73 Fairbanks83

121.92 121.92 122.42 122.42 0.74700087 Fairbanks83
 the HUD Code and the IECC Codes for single-wide manufactured homes (Heating System: weighted on the four heating systems) 

EStar Zone Heating System Enduse HUD Code IECC 2006 IECC 2009 IECC 2012

4 Weighted Average Heating 1.07 1.11 1.10 0.79

4 Weighted Average Cooling 20.98 18.91 17.73 15.87

4 Weighted Average Interior Lighting 3.08 3.08 2.55 2.25

4 Weighted Average Domestic Hot Water 7.36 7.37 7.37 6.80

4 Weighted Average Sum 32.49 30.47 28.75 25.73

4 Weighted Average Heating 9.43 9.12 8.83 7.05

4 Weighted Average Cooling 15.48 13.52 12.28 11.46

4 Weighted Average Interior Lighting 3.08 3.08 2.55 2.25

4 Weighted Average Domestic Hot Water 9.03 9.03 9.03 8.30

4 Weighted Average Sum 37.02 34.75 32.70 29.06

4 Weighted Average Heating 6.09 6.41 6.27 4.90

4 Weighted Average Cooling 20.39 19.61 17.77 16.37

4 Weighted Average Interior Lighting 3.08 3.08 2.55 2.25

4 Weighted Average Domestic Hot Water 9.47 9.48 9.48 8.84

4 Weighted Average Sum 39.03 38.59 36.07 32.36

3 Weighted Average Heating 21.11 21.42 20.11 12.43

3 Weighted Average Cooling 11.25 10.49 9.59 8.50

3 Weighted Average Interior Lighting 3.08 3.08 2.55 2.25

3 Weighted Average Domestic Hot Water 12.38 12.38 12.38 11.45

3 Weighted Average Sum 47.81 47.39 44.64 34.56

3 Weighted Average Heating 13.48 13.72 12.99 7.43

3 Weighted Average Cooling 11.72 10.73 9.68 8.61

3 Weighted Average Interior Lighting 3.08 3.08 2.55 2.25

3 Weighted Average Domestic Hot Water 11.96 11.96 11.96 11.07

3 Weighted Average Sum 40.24 39.49 37.18 29.27

3 Weighted Average Heating 15.31 15.70 14.69 7.24

3 Weighted Average Cooling 2.67 2.09 1.72 1.88

3 Weighted Average Interior Lighting 3.08 3.08 2.55 2.25

3 Weighted Average Domestic Hot Water 13.77 13.77 13.77 12.70

3 Weighted Average Sum 34.82 34.65 32.74 23.95

2 Weighted Average Heating 35.32 33.89 31.55 20.82

2 Weighted Average Cooling 7.30 6.67 6.56 6.05

2 Weighted Average Interior Lighting 3.08 3.08 2.55 2.25

2 Weighted Average Domestic Hot Water 15.80 15.80 15.80 14.64

2 Weighted Average Sum 61.50 59.46 56.49 43.70

2 Weighted Average Heating 24.20 22.16 20.64 13.21

2 Weighted Average Cooling 7.76 6.90 6.83 6.35

2 Weighted Average Interior Lighting 3.08 3.08 2.55 2.25

2 Weighted Average Domestic Hot Water 13.80 13.80 13.80 12.73

2 Weighted Average Sum 48.84 45.91 43.79 34.39

2 Weighted Average Heating 33.65 28.08 25.41 18.50

2 Weighted Average Cooling 4.07 3.30 3.26 3.35

2 Weighted Average Interior Lighting 3.08 3.08 2.55 2.25

2 Weighted Average Domestic Hot Water 16.49 16.49 16.48 15.26

2 Weighted Average Sum 57.29 50.94 47.69 39.26

2 Weighted Average Heating 53.95 46.17 42.93 31.63

2 Weighted Average Cooling 5.70 5.03 4.92 4.80

2 Weighted Average Interior Lighting 3.08 3.08 2.55 2.25

2 Weighted Average Domestic Hot Water 17.26 17.25 17.25 15.96

2 Weighted Average Sum 79.99 71.53 67.63 54.50

2 Weighted Average Heating 37.93 31.32 29.12 21.67

2 Weighted Average Cooling 5.76 4.82 4.72 4.71

2 Weighted Average Interior Lighting 3.08 3.08 2.55 2.25

2 Weighted Average Domestic Hot Water 16.71 16.71 16.71 15.47
2 Weighted Average Sum 63.49 55.92 53.08 43.98 1 Weighted Average Heating 62.45 53.59 49.88 34.49 1 Weighted Average Cooling 3.82 3.31 3.26 3.24 1 Weighted Average Interior Lighting 3.08 3.08 2.55 2.25 1 Weighted Average Domestic Hot Water 18.22 18.22 18.22 16.83 1 Weighted Average Sum 87.57 78.19 73.88 56.62 1 Weighted Average Heating 55.28 46.52 43.39 30.32 1 Weighted Average Cooling 3.74 3.08 3.03 3.02 1 Weighted Average Interior Lighting 3.08 3.08 2.55 2.25 1 Weighted Average Domestic Hot Water 18.54 18.54 18.53 17.11 1 Weighted Average Sum 80.64 71.22 67.49 52.54 1 Weighted Average Heating 85.16 72.42 68.11 47.72 1 Weighted Average Cooling 2.62 2.19 2.18 2.19 1 Weighted Average Interior Lighting 3.08 3.08 2.55 2.25 1 Weighted Average Domestic Hot Water 19.96 19.96 19.95 18.39 1 Weighted Average Sum 110.82 97.63 92.76 70.35 1 Weighted Average Heating 123.37 105.67 100.05 73.56 1 Weighted Average Cooling 1.97 1.59 1.59 1.64 1 Weighted Average Interior Lighting 3.08 3.08 2.55 2.25 1 Weighted Average Domestic Hot Water 22.11 22.11 22.11 20.33 1 Weighted Average Sum 150.52 132.48 126.32 97.65
IECC 2015 EStar RN1Package1RN1Package2RN1Package3RN1Package4

0.79 0.88 0.64 0.63 0.64 0.63

15.87 17.62 15.77 15.75 15.77 15.75

2.25 3.08 2.25 2.25 2.25 2.25

6.74 7.37 6.79 6.79 6.79 6.79

25.68 28.96 25.46 25.44 25.46 25.44 0.78297869

7.05 6.83 6.61 6.61 6.61 6.61

11.46 12.38 11.45 11.43 11.45 11.43

2.25 3.08 2.25 2.25 2.25 2.25

8.23 9.03 8.28 8.28 8.28 8.28

28.99 31.28 28.58 28.56 28.58 28.56 0.77149822

4.90 4.96 3.43 3.43 3.43 3.43

16.37 18.34 15.22 15.20 15.22 15.20

2.25 3.08 2.25 2.25 2.25 2.25

8.78 9.48 8.82 8.82 8.82 8.82

32.30 35.84 29.67 29.65 29.67 29.65 0.7598597

12.43 NA 13.99 14.01 13.99 14.01

8.50 NA 8.67 8.66 8.67 8.66

2.25 NA 2.25 2.25 2.25 2.25

11.36 NA 11.43 11.43 11.43 11.43

34.47 NA 36.30 36.30 36.30 36.30 0.75919941

7.43 NA 8.31 8.32 8.31 8.32

8.61 NA 8.68 8.67 8.68 8.67

2.25 NA 2.25 2.25 2.25 2.25

10.98 NA 11.05 11.05 11.05 11.05

29.19 NA 30.23 30.22 30.23 30.22 0.75102294

7.24 NA 8.47 8.49 8.47 8.49

1.88 NA 1.69 1.68 1.69 1.68

2.25 NA 2.25 2.25 2.25 2.25

12.59 NA 12.68 12.68 12.68 12.68

23.84 NA 25.00 25.01 25.00 25.01 0.71823419

20.82 NA 23.59 23.59 23.76 23.76

6.05 NA 6.08 6.08 6.10 6.10

2.25 NA 2.25 2.25 2.25 2.25

14.53 NA 14.62 14.62 14.62 14.62

43.59 NA 46.52 46.52 46.70 46.70 0.75943008

13.21 NA 15.79 15.81 15.79 15.81

6.35 NA 5.66 5.66 5.66 5.66

2.25 NA 2.25 2.25 2.25 2.25

12.62 NA 12.71 12.71 12.71 12.71

34.28 NA 36.29 36.31 36.29 36.31 0.74346956

18.50 NA 21.71 21.71 21.90 21.90

3.35 NA 3.23 3.23 3.25 3.25

2.25 NA 2.25 2.25 2.25 2.25

15.14 NA 15.24 15.24 15.24 15.24

39.14 NA 42.39 42.39 42.60 42.60 0.74361446

31.63 NA 36.79 36.79 37.01 37.01

4.80 NA 4.76 4.76 4.77 4.77

2.25 NA 2.25 2.25 2.25 2.25

15.83 NA 15.93 15.93 15.93 15.93

54.38 NA 59.66 59.66 59.90 59.90 0.74878986

21.67 NA 25.05 25.05 25.25 25.25

4.71 NA 4.61 4.61 4.63 4.63

2.25 NA 2.25 2.25 2.25 2.25

15.34 NA 15.44 15.44 15.44 15.44
43.87 NA 47.30 47.30 47.53 47.53 0.74867841

34.49 NA 42.82 42.82 43.07 43.07

3.24 NA 3.21 3.21 3.22 3.22

2.25 NA 2.25 2.25 2.25 2.25

16.69 NA 16.80 16.80 16.80 16.80

56.49 NA 65.00 65.00 65.26 65.26 0.74527494

30.32 NA 37.57 37.57 37.83 37.83

3.02 NA 3.00 3.00 3.02 3.02

2.25 NA 2.25 2.25 2.25 2.25

16.97 NA 17.08 17.08 17.08 17.08

52.40 NA 59.86 59.86 60.14 60.14 0.74577261

47.72 NA 58.84 58.84 59.16 59.16

2.19 NA 2.15 2.15 2.16 2.16

2.25 NA 2.25 2.25 2.25 2.25

18.23 NA 18.36 18.36 18.36 18.36

70.20 NA 81.52 81.52 81.85 81.85 0.73859777

73.56 NA 87.85 87.85 88.30 88.30

1.64 NA 1.59 1.59 1.60 1.60

2.25 NA 2.25 2.25 2.25 2.25

20.15 NA 20.29 20.29 20.29 20.29

97.48 NA 112.01 112.01 112.47 112.47 0.74723
Note: although these annual consumption projections result from the primary drivers of en

Table 3A. Annual EUI (kBtu/sf/yr) associated with the HUD Code and the IECC Codes for double-wide manufactured homes (Heating System: Ele

City Name IECC Climate Zone HUD Zone EStar Zone Heating System

Miami 1A 1 4 Electric Resistance

Miami 1A 1 4 Electric Resistance

Miami 1A 1 4 Electric Resistance

Miami 1A 1 4 Electric Resistance

Miami 1A 1 4 Electric Resistance

Houston 2A 1 4 Electric Resistance

Houston 2A 1 4 Electric Resistance

Houston 2A 1 4 Electric Resistance

Houston 2A 1 4 Electric Resistance

Houston 2A 1 4 Electric Resistance

Phoenix 2B 2 4 Electric Resistance

Phoenix 2B 2 4 Electric Resistance

Phoenix 2B 2 4 Electric Resistance

Phoenix 2B 2 4 Electric Resistance

Phoenix 2B 2 4 Electric Resistance

Memphis 3A 2 3 Electric Resistance

Memphis 3A 2 3 Electric Resistance

Memphis 3A 2 3 Electric Resistance

Memphis 3A 2 3 Electric Resistance

Memphis 3A 2 3 Electric Resistance

ElPaso 3B 2 3 Electric Resistance

ElPaso 3B 2 3 Electric Resistance

ElPaso 3B 2 3 Electric Resistance

ElPaso 3B 2 3 Electric Resistance

ElPaso 3B 2 3 Electric Resistance

SanFrancisco 3C 2 3 Electric Resistance

SanFrancisco 3C 2 3 Electric Resistance

SanFrancisco 3C 2 3 Electric Resistance

SanFrancisco 3C 2 3 Electric Resistance

SanFrancisco 3C 2 3 Electric Resistance

Baltimore 4A 3 2 Electric Resistance

Baltimore 4A 3 2 Electric Resistance

Baltimore 4A 3 2 Electric Resistance

Baltimore 4A 3 2 Electric Resistance

Baltimore 4A 3 2 Electric Resistance

Albuquerque 4B 2 2 Electric Resistance

Albuquerque 4B 2 2 Electric Resistance

Albuquerque 4B 2 2 Electric Resistance

Albuquerque 4B 2 2 Electric Resistance

Albuquerque 4B 2 2 Electric Resistance

Salem 4C 3 2 Electric Resistance

Salem 4C 3 2 Electric Resistance

Salem 4C 3 2 Electric Resistance

Salem 4C 3 2 Electric Resistance

Salem 4C 3 2 Electric Resistance

Chicago 5A 3 2 Electric Resistance

Chicago 5A 3 2 Electric Resistance

Chicago 5A 3 2 Electric Resistance

Chicago 5A 3 2 Electric Resistance

Chicago 5A 3 2 Electric Resistance

Boise 5B 3 2 Electric Resistance

Boise 5B 3 2 Electric Resistance

Boise 5B 3 2 Electric Resistance

Boise 5B 3 2 Electric Resistance
Boise 5B

32 Electric Resistance

Burlington 6A31 Electric Resistance

Burlington 6A31 Electric Resistance

Burlington 6A31 Electric Resistance

Burlington 6A31 Electric Resistance

Burlington 6A31 Electric Resistance

Helena 6B31 Electric Resistance

Helena 6B31 Electric Resistance

Helena 6B31 Electric Resistance

Helena 6B31 Electric Resistance

Helena 6B31 Electric Resistance

Duluth731 Electric Resistance

Duluth731 Electric Resistance

Duluth731 Electric Resistance

Duluth731 Electric Resistance

Duluth731 Electric Resistance

Fairbanks831 Electric Resistance

Fairbanks831 Electric Resistance

Fairbanks831 Electric Resistance

Fairbanks831 Electric Resistance

Fairbanks831 Electric Resistance
 from the primary drivers of energy efficiency measures, they only comprise a small portion of the re

e-wide manufactured homes (Heating System: Electric resistance) 

Enduse HUD Code IECC 2006 IECC 2009 IECC 2012 IECC 2015 EStar RN1Package1

Heating 0.91 0.95 0.92 0.57 0.57 0.67 0.42

Cooling 17.39 15.31 14.15 12.31 12.31 13.77 12.21

Interior Lighting 2.57 2.57 2.13 1.88 1.88 2.57 1.88

Domestic Hot Water 4.75 4.75 4.75 4.34 4.33 4.75 4.33

Sum 25.62 23.59 21.97 19.11 19.10 21.75 18.83

Heating 7.93 7.55 7.20 5.15 5.15 5.34 4.80

Cooling 12.88 10.91 9.69 8.83 8.83 9.79 8.87

Interior Lighting 2.57 2.57 2.13 1.88 1.88 2.57 1.88

Domestic Hot Water 5.94 5.94 5.94 5.41 5.39 5.94 5.39

Sum 29.32 26.97 24.95 21.23 21.22 23.57 20.90

Heating 4.28 4.67 4.49 3.09 3.09 3.03 2.20

Cooling 16.34 15.65 13.82 12.36 12.36 13.57 11.70

Interior Lighting 2.57 2.57 2.13 1.88 1.88 2.57 1.88

Domestic Hot Water 4.96 4.96 4.96 4.53 4.52 4.96 4.51

Sum 28.15 27.85 25.40 21.84 21.83 24.07 20.24

Heating 15.23 15.85 14.57 8.09 8.09 NA 9.56

Cooling 9.05 8.34 7.45 6.51 6.51 NA 6.68

Interior Lighting 2.57 2.57 2.13 1.88 1.88 NA 1.88

Domestic Hot Water 6.89 6.89 6.89 6.26 6.24 NA 6.24

Sum 33.74 33.65 31.04 22.68 22.66 NA 24.32

Heating 9.53 9.97 9.24 4.63 4.63 NA 5.46

Cooling 9.59 8.64 7.60 6.73 6.73 NA 6.80

Interior Lighting 2.57 2.57 2.13 1.88 1.88 NA 1.88

Domestic Hot Water 6.61 6.61 6.61 6.01 6.00 NA 6.00

Sum 28.30 27.80 25.57 19.15 19.14 NA 20.06

Heating 10.97 11.65 10.61 4.43 4.43 NA 5.58

Cooling 2.30 1.71 1.34 1.60 1.60 NA 1.39

Interior Lighting 2.57 2.57 2.13 1.88 1.88 NA 1.88

Domestic Hot Water 7.80 7.80 7.80 7.08 7.06 NA 7.06

Sum 23.64 23.74 21.88 14.87 14.85 NA 15.82

Heating 23.82 22.33 20.32 12.48 12.48 NA 14.65

Cooling 5.85 5.18 5.09 4.71 4.71 NA 4.70

Interior Lighting 2.57 2.57 2.13 1.88 1.88 NA 1.88

Domestic Hot Water 7.97 7.97 7.97 7.24 7.22 NA 7.22

Sum 40.21 38.07 35.53 26.25 26.24 NA 28.43

Heating 17.18 15.37 13.91 8.20 8.20 NA 10.56

Cooling 6.44 5.55 5.50 5.21 5.21 NA 4.49

Interior Lighting 2.57 2.57 2.13 1.88 1.88 NA 1.88

Domestic Hot Water 7.83 7.83 7.83 7.11 7.09 NA 7.10

Sum 34.02 31.29 29.34 22.25 22.23 NA 23.92

Heating 22.67 19.02 16.90 11.07 11.07 NA 13.42

Cooling 3.35 2.65 2.64 2.75 2.75 NA 2.58

Interior Lighting 2.57 2.57 2.13 1.88 1.88 NA 1.88

Domestic Hot Water 8.39 8.39 8.39 7.61 7.59 NA 7.59

Sum 36.98 32.63 30.05 23.24 23.22 NA 25.43

Heating 36.22 31.01 28.52 19.13 19.13 NA 23.01

Cooling 4.61 3.98 3.89 3.80 3.80 NA 3.72

Interior Lighting 2.57 2.57 2.13 1.88 1.88 NA 1.88

Domestic Hot Water 8.89 8.89 8.89 8.06 8.04 NA 8.04

Sum 52.29 46.46 43.43 32.79 32.77 NA 36.62

Heating 25.25 20.75 19.06 12.80 12.80 NA 15.24

Cooling 4.73 3.88 3.80 3.82 3.82 NA 3.66

Interior Lighting 2.57 2.57 2.13 1.88 1.88 NA 1.88

Domestic Hot Water 8.54 8.54 8.54 7.75 7.73 NA 7.73
Sum 41.09 35.73 33.52 26.14 26.13 NA 28.46

Heating 41.67 35.80 32.96 21.10 21.10 NA 26.71

Cooling 3.11 2.64 2.60 2.63 2.63 NA 2.54

Interior Lighting 2.57 2.57 2.13 1.88 1.88 NA 1.88

Domestic Hot Water 9.49 9.49 9.49 8.60 8.58 NA 8.58

Sum 56.84 50.50 47.18 34.11 34.09 NA 39.68

Heating 36.49 30.60 28.23 18.24 18.24 NA 22.90

Cooling 3.10 2.50 2.47 2.53 2.53 NA 2.42

Interior Lighting 2.57 2.57 2.13 1.88 1.88 NA 1.88

Domestic Hot Water 9.69 9.69 9.69 8.78 8.76 NA 8.76

Sum 51.85 45.37 42.51 31.30 31.28 NA 35.92

Heating 56.59 48.39 44.96 29.11 29.11 NA 36.64

Cooling 2.17 1.78 1.77 1.83 1.83 NA 1.73

Interior Lighting 2.57 2.57 2.13 1.88 1.88 NA 1.88

Domestic Hot Water 10.58 10.58 10.58 9.58 9.56 NA 9.56

Sum 71.91 63.33 59.44 42.30 42.28 NA 49.79

Heating 80.41 69.04 64.62 44.36 44.36 NA 53.81

Cooling 1.64 1.30 1.31 1.41 1.41 NA 1.30

Interior Lighting 2.57 2.57 2.13 1.88 1.88 NA 1.88

Domestic Hot Water 11.94 11.94 11.94 10.81 10.78 NA 10.78

Sum 96.56 84.87 80.02 58.37 58.34 NA 67.79
 small portion of the requirements set forth in the IECC.

Table 3B. Annual EUI (kBtu/sf/yr) associated with the HUD Code and the IECC Codes for d

RN1Package2RN1Package3RN1Package4 City Name IECC Climate Zone HUD Zone

0.42 0.42 0.42 Miami 1A 1

12.19 12.21 12.19 Miami 1A 1

1.88 1.88 1.88 Miami 1A 1

4.33 4.33 4.33 Miami 1A 1

18.81 18.83 18.81 0.73418679 Miami 1A 1

4.80 4.80 4.80 Houston 2A 1

8.85 8.87 8.85 Houston 2A 1

1.88 1.88 1.88 Houston 2A 1

5.39 5.39 5.39 Houston 2A 1

20.88 20.90 20.88 0.71225973 Houston 2A 1

2.20 2.20 2.20 Phoenix 2B 2

11.68 11.70 11.68 Phoenix 2B 2

1.88 1.88 1.88 Phoenix 2B 2

4.51 4.51 4.51 Phoenix 2B 2

20.22 20.24 20.22 0.71837629 Phoenix 2B 2

9.58 9.56 9.58 Memphis 3A 2

6.66 6.68 6.66 Memphis 3A 2

1.88 1.88 1.88 Memphis 3A 2

6.24 6.24 6.24 Memphis 3A 2

24.32 24.32 24.32 0.72088362 Memphis 3A 2

5.46 5.46 5.46 ElPaso 3B 2

6.78 6.80 6.78 ElPaso 3B 2

1.88 1.88 1.88 ElPaso 3B 2

6.00 6.00 6.00 ElPaso 3B 2

20.05 20.06 20.05 0.70837157 ElPaso 3B 2

5.59 5.58 5.59 SanFrancisco 3C 2

1.39 1.39 1.39 SanFrancisco 3C 2

1.88 1.88 1.88 SanFrancisco 3C 2

7.06 7.06 7.06 SanFrancisco 3C 2

15.84 15.82 15.84 0.66984317 SanFrancisco 3C 2

14.65 15.00 15.00 Baltimore 4A 3

4.70 4.75 4.75 Baltimore 4A 3

1.88 1.88 1.88 Baltimore 4A 3

7.22 7.22 7.22 Baltimore 4A 3

28.43 28.85 28.85 0.71732828 Baltimore 4A 3

10.59 10.56 10.59 Albuquerque 4B 2

4.48 4.49 4.48 Albuquerque 4B 2

1.88 1.88 1.88 Albuquerque 4B 2

7.10 7.10 7.10 Albuquerque 4B 2

23.94 23.92 23.94 0.70359273 Albuquerque 4B 2

13.42 13.82 13.82 Salem 4C 3

2.58 2.63 2.63 Salem 4C 3

1.88 1.88 1.88 Salem 4C 3

7.59 7.59 7.59 Salem 4C 3

25.43 25.90 25.90 0.70045572 Salem 4C 3

23.01 23.46 23.46 Chicago 5A 3

3.72 3.76 3.76 Chicago 5A 3

1.88 1.88 1.88 Chicago 5A 3

8.04 8.04 8.04 Chicago 5A 3

36.62 37.12 37.12 0.70999379 Chicago 5A 3

15.24 15.67 15.67 Boise 5B 3

3.66 3.72 3.72 Boise 5B 3

1.88 1.88 1.88 Boise 5B 3

7.73 7.73 7.73 Boise 5B 3
28.46 28.96 28.96 0.70467642 Boise 5B

3

26.71 27.23 27.23 Burlington 6A3

2.54 2.57 2.57 Burlington 6A3

1.88 1.88 1.88 Burlington 6A3

8.58 8.58 8.58 Burlington 6A3

39.68 40.24 40.24 0.70793069 Burlington 6A3

22.90 23.46 23.46 Helena 6B3

2.42 2.46 2.46 Helena 6B3

1.88 1.88 1.88 Helena 6B3

8.76 8.76 8.76 Helena 6B3

35.92 36.53 36.53 0.70455651 Helena 6B3

36.64 37.30 37.30 Duluth73

1.73 1.76 1.76 Duluth73

1.88 1.88 1.88 Duluth73

9.56 9.56 9.56 Duluth73

49.79 50.48 50.48 0.70199731 Duluth73

53.81 54.73 54.73 Fairbanks83

1.30 1.32 1.32 Fairbanks83

1.88 1.88 1.88 Fairbanks83

10.78 10.78 10.78 Fairbanks83

67.79 68.73 68.73 0.71178847 Fairbanks83
the HUD Code and the IECC Codes for double-wide manufactured homes (Heating System: Heat Pump) 

EStar Zone Heating System Enduse HUD Code IECC 2006 IECC 2009 IECC 2012

4 Heat Pump Heating 0.31 0.32 0.31 0.20

4 Heat Pump Cooling 17.35 15.27 14.11 12.27

4 Heat Pump Interior Lighting 2.57 2.57 2.13 1.88

4 Heat Pump Domestic Hot Water 4.75 4.75 4.75 4.34

4 Heat Pump Sum 24.99 22.93 21.32 18.70

4 Heat Pump Heating 3.50 3.30 3.14 2.37

4 Heat Pump Cooling 12.86 10.88 9.66 8.81

4 Heat Pump Interior Lighting 2.57 2.57 2.13 1.88

4 Heat Pump Domestic Hot Water 5.94 5.94 5.94 5.41

4 Heat Pump Sum 24.87 22.69 20.86 18.45

4 Heat Pump Heating 1.81 1.94 1.86 1.37

4 Heat Pump Cooling 16.25 15.55 13.72 12.27

4 Heat Pump Interior Lighting 2.57 2.57 2.13 1.88

4 Heat Pump Domestic Hot Water 4.96 4.96 4.96 4.53

4 Heat Pump Sum 25.59 25.02 22.67 20.04

3 Heat Pump Heating 7.16 7.37 6.78 4.09

3 Heat Pump Cooling 9.02 8.30 7.41 6.49

3 Heat Pump Interior Lighting 2.57 2.57 2.13 1.88

3 Heat Pump Domestic Hot Water 6.89 6.89 6.89 6.26

3 Heat Pump Sum 25.64 25.12 23.20 18.67

3 Heat Pump Heating 4.38 4.50 4.19 2.51

3 Heat Pump Cooling 9.54 8.58 7.54 6.69

3 Heat Pump Interior Lighting 2.57 2.57 2.13 1.88

3 Heat Pump Domestic Hot Water 6.61 6.61 6.61 6.01

3 Heat Pump Sum 23.11 22.26 20.46 17.05

3 Heat Pump Heating 4.14 4.32 3.95 1.91

3 Heat Pump Cooling 2.37 1.76 1.37 1.66

3 Heat Pump Interior Lighting 2.57 2.57 2.13 1.88

3 Heat Pump Domestic Hot Water 7.80 7.80 7.80 7.08

3 Heat Pump Sum 16.88 16.44 15.24 12.47

2 Heat Pump Heating 11.55 10.85 9.92 6.46

2 Heat Pump Cooling 5.85 5.18 5.09 4.72

2 Heat Pump Interior Lighting 2.57 2.57 2.13 1.88

2 Heat Pump Domestic Hot Water 7.97 7.97 7.97 7.24

2 Heat Pump Sum 27.94 26.57 25.11 20.24

2 Heat Pump Heating 8.31 7.50 6.91 4.65

2 Heat Pump Cooling 6.42 5.52 5.48 5.21

2 Heat Pump Interior Lighting 2.57 2.57 2.13 1.88

2 Heat Pump Domestic Hot Water 7.83 7.83 7.83 7.11

2 Heat Pump Sum 25.14 23.39 22.32 18.76

2 Heat Pump Heating 10.87 9.31 8.41 6.02

2 Heat Pump Cooling 3.37 2.67 2.66 2.79

2 Heat Pump Interior Lighting 2.57 2.57 2.13 1.88

2 Heat Pump Domestic Hot Water 8.39 8.39 8.39 7.61

2 Heat Pump Sum 25.21 22.93 21.57 18.26

2 Heat Pump Heating 20.75 17.95 16.50 11.27

2 Heat Pump Cooling 4.61 3.99 3.90 3.82

2 Heat Pump Interior Lighting 2.57 2.57 2.13 1.88

2 Heat Pump Domestic Hot Water 8.89 8.89 8.89 8.06

2 Heat Pump Sum 36.82 33.34 31.35 24.85

2 Heat Pump Heating 13.15 11.03 10.24 7.42

2 Heat Pump Cooling 4.73 3.88 3.80 3.83

2 Heat Pump Interior Lighting 2.57 2.57 2.13 1.88

2 Heat Pump Domestic Hot Water 8.54 8.54 8.54 7.75
2 Heat Pump Sum 29.00 25.99 24.68 20.79 1 Heat Pump Heating 25.33 22.06 20.19 12.88 1 Heat Pump Cooling 3.14 2.67 2.63 2.67 1 Heat Pump Interior Lighting 2.57 2.57 2.13 1.88 1 Heat Pump Domestic Hot Water 9.49 9.49 9.49 8.60 1 Heat Pump Sum 40.53 36.73 34.37 25.83 1 Heat Pump Heating 21.59 18.40 17.02 11.43 1 Heat Pump Cooling 3.11 2.51 2.48 2.55 1 Heat Pump Interior Lighting 2.57 2.57 2.13 1.88 1 Heat Pump Domestic Hot Water 9.69 9.69 9.69 8.78 1 Heat Pump Sum 36.96 33.09 31.21 24.41 1 Heat Pump Heating 39.72 34.07 31.78 20.95 1 Heat Pump Cooling 2.19 1.80 1.79 1.88 1 Heat Pump Interior Lighting 2.57 2.57 2.13 1.88 1 Heat Pump Domestic Hot Water 10.58 10.58 10.58 9.58 1 Heat Pump Sum 55.07 48.97 46.22 34.11 1 Heat Pump Heating 66.86 57.70 54.18 38.04 1 Heat Pump Cooling 1.66 1.31 1.33 1.45 1 Heat Pump Interior Lighting 2.57 2.57 2.13 1.88 1 Heat Pump Domestic Hot Water 11.94 11.94 11.94 10.81 1 Heat Pump Sum 83.04 73.51 69.54 52.02
Table 3C. Annual EUI (kBtu/sf/yr) associated with 

IECC 2015 EStar RN1Package1RN1Package2RN1Package3RN1Package4 City Name

0.20 0.23 0.15 0.15 0.15 0.15 Miami

12.27 13.74 12.18 12.16 12.18 12.16 Miami

1.88 2.57 1.88 1.88 1.88 1.88 Miami

4.33 4.75 4.33 4.33 4.33 4.33 Miami

18.69 21.29 18.54 18.52 18.54 18.52 Miami

2.37 2.47 2.25 2.25 2.25 2.25 Houston

8.81 9.76 8.84 8.83 8.84 8.83 Houston

1.88 2.57 1.88 1.88 1.88 1.88 Houston

5.39 5.94 5.39 5.39 5.39 5.39 Houston

18.44 20.70 18.35 18.33 18.35 18.33 Houston

1.37 1.36 1.06 1.06 1.06 1.06 Phoenix

12.27 13.46 11.61 11.60 11.61 11.60 Phoenix

1.88 2.57 1.88 1.88 1.88 1.88 Phoenix

4.52 4.96 4.51 4.51 4.51 4.51 Phoenix

20.03 22.32 19.04 19.02 19.04 19.02 Phoenix

4.09 NA 4.70 4.70 4.70 4.70 Memphis

6.49 NA 6.65 6.64 6.65 6.64 Memphis

1.88 NA 1.88 1.88 1.88 1.88 Memphis

6.24 NA 6.25 6.25 6.25 6.25 Memphis

18.65 NA 19.43 19.43 19.43 19.43 Memphis

2.51 NA 2.81 2.81 2.81 2.81 ElPaso

6.69 NA 6.75 6.74 6.75 6.74 ElPaso

1.88 NA 1.88 1.88 1.88 1.88 ElPaso

6.00 NA 6.00 6.00 6.00 6.00 ElPaso

17.03 NA 17.40 17.39 17.40 17.39 ElPaso

1.91 NA 2.29 2.29 2.29 2.29 SanFrancisco

1.66 NA 1.44 1.44 1.44 1.44 SanFrancisco

1.88 NA 1.88 1.88 1.88 1.88 SanFrancisco

7.06 NA 7.06 7.06 7.06 7.06 SanFrancisco

12.45 NA 12.62 12.62 12.62 12.62 SanFrancisco

6.46 NA 7.38 7.38 7.53 7.53 Baltimore

4.72 NA 4.71 4.71 4.76 4.76 Baltimore

1.88 NA 1.88 1.88 1.88 1.88 Baltimore

7.22 NA 7.22 7.22 7.22 7.22 Baltimore

20.22 NA 21.15 21.15 21.36 21.36 Baltimore

4.65 NA 5.46 5.46 5.46 5.46 Albuquerque

5.21 NA 4.47 4.47 4.47 4.47 Albuquerque

1.88 NA 1.88 1.88 1.88 1.88 Albuquerque

7.09 NA 7.10 7.10 7.10 7.10 Albuquerque

18.74 NA 18.82 18.82 18.82 18.82 Albuquerque

6.02 NA 6.94 6.94 7.11 7.11 Salem

2.79 NA 2.61 2.61 2.66 2.66 Salem

1.88 NA 1.88 1.88 1.88 1.88 Salem

7.59 NA 7.59 7.59 7.59 7.59 Salem

18.24 NA 18.99 18.99 19.22 19.22 Salem

11.27 NA 13.38 13.38 13.62 13.62 Chicago

3.82 NA 3.73 3.73 3.77 3.77 Chicago

1.88 NA 1.88 1.88 1.88 1.88 Chicago

8.04 NA 8.04 8.04 8.04 8.04 Chicago

24.83 NA 26.88 26.88 27.16 27.16 Chicago

7.42 NA 8.47 8.47 8.66 8.66 Boise

3.83 NA 3.67 3.67 3.73 3.73 Boise

1.88 NA 1.88 1.88 1.88 1.88 Boise

7.73 NA 7.73 7.73 7.73 7.73 Boise
20.77 NA 21.68 21.68 21.95 21.95 Boise

12.88 NA 16.24 16.24 16.51 16.51 Burlington

2.67 NA 2.57 2.57 2.60 2.60 Burlington

1.88 NA 1.88 1.88 1.88 1.88 Burlington

8.58 NA 8.58 8.58 8.58 8.58 Burlington

25.81 NA 29.12 29.12 29.42 29.42 Burlington

11.43 NA 13.97 13.97 14.26 14.26 Helena

2.55 NA 2.43 2.43 2.48 2.48 Helena

1.88 NA 1.88 1.88 1.88 1.88 Helena

8.76 NA 8.76 8.76 8.76 8.76 Helena

24.39 NA 26.85 26.85 27.19 27.19 Helena

20.95 NA 26.20 26.20 26.65 26.65 Duluth

1.88 NA 1.77 1.77 1.79 1.79 Duluth

1.88 NA 1.88 1.88 1.88 1.88 Duluth

9.56 NA 9.56 9.56 9.56 9.56 Duluth

34.09 NA 39.27 39.27 39.75 39.75 Duluth

38.04 NA 45.52 45.52 46.25 46.25 Fairbanks

1.45 NA 1.33 1.33 1.35 1.35 Fairbanks

1.88 NA 1.88 1.88 1.88 1.88 Fairbanks

10.78 NA 10.78 10.78 10.78 10.78 Fairbanks

52.00 NA 59.44 59.44 60.19 60.19 Fairbanks
le 3C. Annual EUI (kBtu/sf/yr) associated with the HUD Code and the IECC Codes for double-wide manufactured homes (Heating System: Natural Gas Furnace

IECC Climate Zone HUD Zone EStar Zone Heating System Enduse

1A 1 4 Natural Gas Furnace Heating

1A 1 4 Natural Gas Furnace Cooling

1A 1 4 Natural Gas Furnace Interior Lighting

1A 1 4 Natural Gas Furnace Domestic Hot Water

1A 1 4 Natural Gas Furnace Sum

2A 1 4 Natural Gas Furnace Heating

2A 1 4 Natural Gas Furnace Cooling

2A 1 4 Natural Gas Furnace Interior Lighting

2A 1 4 Natural Gas Furnace Domestic Hot Water

2A 1 4 Natural Gas Furnace Sum

2B 2 4 Natural Gas Furnace Heating

2B 2 4 Natural Gas Furnace Cooling

2B 2 4 Natural Gas Furnace Interior Lighting

2B 2 4 Natural Gas Furnace Domestic Hot Water

2B 2 4 Natural Gas Furnace Sum

3A 2 3 Natural Gas Furnace Heating

3A 2 3 Natural Gas Furnace Cooling

3A 2 3 Natural Gas Furnace Interior Lighting

3A 2 3 Natural Gas Furnace Domestic Hot Water

3A 2 3 Natural Gas Furnace Sum

3B 2 3 Natural Gas Furnace Heating

3B 2 3 Natural Gas Furnace Cooling

3B 2 3 Natural Gas Furnace Interior Lighting

3B 2 3 Natural Gas Furnace Domestic Hot Water

3B 2 3 Natural Gas Furnace Sum

3C 2 3 Natural Gas Furnace Heating

3C 2 3 Natural Gas Furnace Cooling

3C 2 3 Natural Gas Furnace Interior Lighting

3C 2 3 Natural Gas Furnace Domestic Hot Water

3C 2 3 Natural Gas Furnace Sum

4A 3 2 Natural Gas Furnace Heating

4A 3 2 Natural Gas Furnace Cooling

4A 3 2 Natural Gas Furnace Interior Lighting

4A 3 2 Natural Gas Furnace Domestic Hot Water

4A 3 2 Natural Gas Furnace Sum

4B 2 2 Natural Gas Furnace Heating

4B 2 2 Natural Gas Furnace Cooling

4B 2 2 Natural Gas Furnace Interior Lighting

4B 2 2 Natural Gas Furnace Domestic Hot Water

4B 2 2 Natural Gas Furnace Sum

4C 3 2 Natural Gas Furnace Heating

4C 3 2 Natural Gas Furnace Cooling

4C 3 2 Natural Gas Furnace Interior Lighting

4C 3 2 Natural Gas Furnace Domestic Hot Water

4C 3 2 Natural Gas Furnace Sum

5A 3 2 Natural Gas Furnace Heating

5A 3 2 Natural Gas Furnace Cooling

5A 3 2 Natural Gas Furnace Interior Lighting

5A 3 2 Natural Gas Furnace Domestic Hot Water

5A 3 2 Natural Gas Furnace Sum

5B 3 2 Natural Gas Furnace Heating

5B 3 2 Natural Gas Furnace Cooling

5B 3 2 Natural Gas Furnace Interior Lighting

5B 3 2 Natural Gas Furnace Domestic Hot Water
5B

32 Natural Gas Furnace Sum

6A31 Natural Gas Furnace Heating

6A31 Natural Gas Furnace Cooling

6A31 Natural Gas Furnace Interior Lighting

6A31 Natural Gas Furnace Domestic Hot Water

6A31 Natural Gas Furnace Sum

6B31 Natural Gas Furnace Heating

6B31 Natural Gas Furnace Cooling

6B31 Natural Gas Furnace Interior Lighting

6B31 Natural Gas Furnace Domestic Hot Water

6B31 Natural Gas Furnace Sum

731 Natural Gas Furnace Heating

731 Natural Gas Furnace Cooling

731 Natural Gas Furnace Interior Lighting

731 Natural Gas Furnace Domestic Hot Water

731 Natural Gas Furnace Sum

831 Natural Gas Furnace Heating

831 Natural Gas Furnace Cooling

831 Natural Gas Furnace Interior Lighting

831 Natural Gas Furnace Domestic Hot Water

831 Natural Gas Furnace Sum
Heating System: Natural Gas Furnace) 

HUD Code IECC 2006 IECC 2009 IECC 2012 IECC 2015 EStar RN1Package1RN1Package2RN1Package3

1.02 1.07 1.04 0.62 0.62 0.76 0.43 0.43 0.43

18.08 15.99 14.83 12.96 12.96 15.72 12.87 12.85 12.87

2.57 2.57 2.13 1.88 1.88 2.57 1.88 1.88 1.88

8.47 8.47 8.47 7.95 7.94 8.47 7.94 7.94 7.94

30.15 28.11 26.47 23.40 23.39 27.54 23.10 23.08 23.10

9.67 9.19 8.74 6.13 6.13 7.63 5.69 5.69 5.69

13.41 11.42 10.20 9.34 9.34 11.59 9.38 9.36 9.38

2.57 2.57 2.13 1.88 1.88 2.57 1.88 1.88 1.88

9.99 9.99 9.99 9.32 9.31 9.99 9.30 9.30 9.30

35.63 33.18 31.05 26.61 26.60 31.75 26.18 26.17 26.18

4.99 5.48 5.24 3.51 3.51 4.58 2.42 2.42 2.42

16.88 16.18 14.33 12.88 12.88 16.48 12.23 12.21 12.23

2.57 2.57 2.13 1.88 1.88 2.57 1.88 1.88 1.88

8.75 8.76 8.76 8.21 8.20 8.76 8.20 8.20 8.20

33.19 32.99 30.47 26.45 26.43 32.41 24.64 24.62 24.64

18.99 19.79 18.12 9.75 9.75 NA 11.64 11.67 11.64

9.47 8.74 7.84 6.92 6.92 NA 7.08 7.07 7.08

2.57 2.57 2.13 1.88 1.88 NA 1.88 1.88 1.88

11.20 11.20 11.20 10.40 10.38 NA 10.39 10.39 10.39

42.22 42.31 39.30 28.84 28.82 NA 30.92 30.93 30.92

11.58 12.14 11.18 5.34 5.34 NA 6.39 6.39 6.39

10.04 9.07 8.02 7.17 7.17 NA 7.23 7.21 7.23

2.57 2.57 2.13 1.88 1.88 NA 1.88 1.88 1.88

10.84 10.84 10.85 10.08 10.06 NA 10.07 10.07 10.07

35.03 34.63 32.16 24.32 24.31 NA 25.45 25.44 25.45

12.79 13.64 12.26 4.63 4.63 NA 6.00 6.02 6.00

2.53 1.91 1.53 1.86 1.86 NA 1.63 1.63 1.63

2.57 2.57 2.13 1.88 1.88 NA 1.88 1.88 1.88

12.37 12.37 12.38 11.45 11.43 NA 11.44 11.44 11.44

30.25 30.50 28.30 19.65 19.63 NA 20.82 20.83 20.82

29.94 28.02 25.39 15.21 15.21 NA 18.03 18.03 18.48

6.16 5.48 5.39 5.03 5.03 NA 5.01 5.01 5.06

2.57 2.57 2.13 1.88 1.88 NA 1.88 1.88 1.88

12.58 12.58 12.58 11.64 11.62 NA 11.63 11.63 11.63

51.25 48.68 45.52 33.68 33.65 NA 36.51 36.51 37.03

21.26 18.92 17.05 9.76 9.76 NA 12.73 12.76 12.73

6.78 5.88 5.84 5.58 5.58 NA 4.83 4.82 4.83

2.57 2.57 2.13 1.88 1.88 NA 1.88 1.88 1.88

12.39 12.39 12.39 11.47 11.45 NA 11.46 11.46 11.46

43.01 39.73 37.36 28.47 28.45 NA 30.74 30.76 30.74

28.00 23.30 20.56 13.08 13.08 NA 16.10 16.10 16.61

3.55 2.85 2.85 2.99 2.99 NA 2.81 2.81 2.85

2.57 2.57 2.13 1.88 1.88 NA 1.88 1.88 1.88

13.12 13.12 13.11 12.13 12.11 NA 12.11 12.11 12.12

47.24 41.84 38.64 29.97 29.94 NA 32.84 32.84 33.41

46.22 39.40 36.12 23.82 23.82 NA 28.91 28.91 29.50

4.87 4.25 4.16 4.07 4.07 NA 3.98 3.98 4.02

2.57 2.57 2.13 1.88 1.88 NA 1.88 1.88 1.88

13.73 13.73 13.73 12.69 12.66 NA 12.67 12.67 12.67

67.39 59.97 56.15 42.34 42.31 NA 47.39 47.39 48.04

31.60 25.76 23.56 15.47 15.47 NA 18.63 18.63 19.18

4.97 4.12 4.04 4.08 4.08 NA 3.91 3.91 3.97

2.57 2.57 2.13 1.88 1.88 NA 1.88 1.88 1.88

13.30 13.30 13.30 12.30 12.27 NA 12.28 12.28 12.28
52.44 45.74 43.01 33.58 33.56 NA 36.62 36.62 37.24

53.29 45.59 41.86 26.30 26.30 NA 33.66 33.66 34.33

3.32 2.85 2.82 2.86 2.86 NA 2.76 2.76 2.79

2.57 2.57 2.13 1.88 1.88 NA 1.88 1.88 1.88

14.50 14.49 14.49 13.37 13.35 NA 13.35 13.35 13.35

73.67 65.52 61.30 44.27 44.24 NA 51.60 51.60 52.31

46.31 38.63 35.52 22.49 22.49 NA 28.58 28.58 29.30

3.28 2.69 2.66 2.75 2.75 NA 2.62 2.62 2.66

2.57 2.57 2.13 1.88 1.88 NA 1.88 1.88 1.88

14.75 14.74 14.74 13.60 13.57 NA 13.58 13.58 13.58

66.92 58.65 55.05 40.54 40.51 NA 46.59 46.59 47.37

72.84 62.06 57.56 36.75 36.75 NA 46.65 46.65 47.51

2.32 1.94 1.93 2.03 2.03 NA 1.90 1.90 1.92

2.57 2.57 2.13 1.88 1.88 NA 1.88 1.88 1.88

15.87 15.87 15.87 14.61 14.58 NA 14.59 14.59 14.59

93.61 82.46 77.49 55.11 55.08 NA 64.97 64.97 65.87

104.30 89.34 83.53 56.93 56.93 NA 69.36 69.36 70.57

1.76 1.43 1.44 1.56 1.56 NA 1.44 1.44 1.46

2.57 2.57 2.13 1.88 1.88 NA 1.88 1.88 1.88

17.58 17.58 17.57 16.15 16.11 NA 16.12 16.12 16.12

126.21 110.95 104.70 76.38 76.35 NA 88.81 88.81 90.04
Table 3D. Annual EUI (kBtu/sf/yr) associated with the HUD Code and the IECC Codes for double-wide manufactured h

RN1Package4 City Name IECC Climate Zone HUD Zone EStar Zone

0.43 Miami 1A 1 4

12.85 Miami 1A 1 4

1.88 Miami 1A 1 4

7.94 Miami 1A 1 4

23.08 Miami 1A 1 4

5.69 Houston 2A 1 4

9.36 Houston 2A 1 4

1.88 Houston 2A 1 4

9.30 Houston 2A 1 4

26.17 Houston 2A 1 4

2.42 Phoenix 2B 2 4

12.21 Phoenix 2B 2 4

1.88 Phoenix 2B 2 4

8.20 Phoenix 2B 2 4

24.62 Phoenix 2B 2 4

11.67 Memphis 3A 2 3

7.07 Memphis 3A 2 3

1.88 Memphis 3A 2 3

10.39 Memphis 3A 2 3

30.93 Memphis 3A 2 3

6.39 ElPaso 3B 2 3

7.21 ElPaso 3B 2 3

1.88 ElPaso 3B 2 3

10.07 ElPaso 3B 2 3

25.44 ElPaso 3B 2 3

6.02 SanFrancisco 3C 2 3

1.63 SanFrancisco 3C 2 3

1.88 SanFrancisco 3C 2 3

11.44 SanFrancisco 3C 2 3

20.83 SanFrancisco 3C 2 3

18.48 Baltimore 4A 3 2

5.06 Baltimore 4A 3 2

1.88 Baltimore 4A 3 2

11.63 Baltimore 4A 3 2

37.03 Baltimore 4A 3 2

12.76 Albuquerque 4B 2 2

4.82 Albuquerque 4B 2 2

1.88 Albuquerque 4B 2 2

11.46 Albuquerque 4B 2 2

30.76 Albuquerque 4B 2 2

16.61 Salem 4C 3 2

2.85 Salem 4C 3 2

1.88 Salem 4C 3 2

12.12 Salem 4C 3 2

33.41 Salem 4C 3 2

29.50 Chicago 5A 3 2

4.02 Chicago 5A 3 2

1.88 Chicago 5A 3 2

12.67 Chicago 5A 3 2

48.04 Chicago 5A 3 2

19.18 Boise 5B 3 2

3.97 Boise 5B 3 2

1.88 Boise 5B 3 2

12.28 Boise 5B 3 2
37.24 Boise 5B

32

34.33 Burlington 6A31

2.79 Burlington 6A31

1.88 Burlington 6A31

13.35 Burlington 6A31

52.31 Burlington 6A31

29.30 Helena 6B31

2.66 Helena 6B31

1.88 Helena 6B31

13.58 Helena 6B31

47.37 Helena 6B31

47.51 Duluth731

1.92 Duluth731

1.88 Duluth731

14.59 Duluth731

65.87 Duluth731

70.57 Fairbanks831

1.46 Fairbanks831

1.88 Fairbanks831

16.12 Fairbanks831

90.04 Fairbanks831
IECC Codes for double-wide manufactured homes (Heating System: LPG Furnace) 

Heating System Enduse HUD Code IECC 2006 IECC 2009 IECC 2012 IECC 2015

LPG Furnace Heating 1.02 1.07 1.04 0.62 0.62

LPG Furnace Cooling 18.08 15.99 14.83 12.96 12.96

LPG Furnace Interior Lighting 2.57 2.57 2.13 1.88 1.88

LPG Furnace Domestic Hot Water 8.47 8.47 8.47 7.95 7.94

LPG Furnace Sum 30.15 28.11 26.47 23.40 23.39

LPG Furnace Heating 9.67 9.19 8.74 6.13 6.13

LPG Furnace Cooling 13.41 11.42 10.20 9.34 9.34

LPG Furnace Interior Lighting 2.57 2.57 2.13 1.88 1.88

LPG Furnace Domestic Hot Water 9.99 9.99 9.99 9.32 9.31

LPG Furnace Sum 35.63 33.18 31.05 26.61 26.60

LPG Furnace Heating 4.99 5.48 5.24 3.51 3.51

LPG Furnace Cooling 16.88 16.18 14.33 12.88 12.88

LPG Furnace Interior Lighting 2.57 2.57 2.13 1.88 1.88

LPG Furnace Domestic Hot Water 8.75 8.76 8.76 8.21 8.20

LPG Furnace Sum 33.19 32.99 30.47 26.45 26.43

LPG Furnace Heating 18.99 19.79 18.12 9.75 9.75

LPG Furnace Cooling 9.47 8.74 7.84 6.92 6.92

LPG Furnace Interior Lighting 2.57 2.57 2.13 1.88 1.88

LPG Furnace Domestic Hot Water 11.20 11.20 11.20 10.40 10.38

LPG Furnace Sum 42.22 42.31 39.30 28.84 28.82

LPG Furnace Heating 11.58 12.14 11.18 5.34 5.34

LPG Furnace Cooling 10.04 9.07 8.02 7.17 7.17

LPG Furnace Interior Lighting 2.57 2.57 2.13 1.88 1.88

LPG Furnace Domestic Hot Water 10.84 10.84 10.85 10.08 10.06

LPG Furnace Sum 35.03 34.63 32.16 24.32 24.31

LPG Furnace Heating 12.79 13.64 12.26 4.63 4.63

LPG Furnace Cooling 2.53 1.91 1.53 1.86 1.86

LPG Furnace Interior Lighting 2.57 2.57 2.13 1.88 1.88

LPG Furnace Domestic Hot Water 12.37 12.37 12.38 11.45 11.43

LPG Furnace Sum 30.25 30.50 28.30 19.65 19.63

LPG Furnace Heating 29.94 28.02 25.39 15.21 15.21

LPG Furnace Cooling 6.16 5.48 5.39 5.03 5.03

LPG Furnace Interior Lighting 2.57 2.57 2.13 1.88 1.88

LPG Furnace Domestic Hot Water 12.58 12.58 12.58 11.64 11.62

LPG Furnace Sum 51.25 48.68 45.52 33.68 33.65

LPG Furnace Heating 21.26 18.92 17.05 9.76 9.76

LPG Furnace Cooling 6.78 5.88 5.84 5.58 5.58

LPG Furnace Interior Lighting 2.57 2.57 2.13 1.88 1.88

LPG Furnace Domestic Hot Water 12.39 12.39 12.39 11.47 11.45

LPG Furnace Sum 43.01 39.73 37.36 28.47 28.45

LPG Furnace Heating 28.00 23.30 20.56 13.08 13.08

LPG Furnace Cooling 3.55 2.85 2.85 2.99 2.99

LPG Furnace Interior Lighting 2.57 2.57 2.13 1.88 1.88

LPG Furnace Domestic Hot Water 13.12 13.12 13.11 12.13 12.11

LPG Furnace Sum 47.24 41.84 38.64 29.97 29.94

LPG Furnace Heating 46.22 39.40 36.12 23.82 23.82

LPG Furnace Cooling 4.87 4.25 4.16 4.07 4.07

LPG Furnace Interior Lighting 2.57 2.57 2.13 1.88 1.88

LPG Furnace Domestic Hot Water 13.73 13.73 13.73 12.69 12.66

LPG Furnace Sum 67.39 59.97 56.15 42.34 42.31

LPG Furnace Heating 31.60 25.76 23.56 15.47 15.47

LPG Furnace Cooling 4.97 4.12 4.04 4.08 4.08

LPG Furnace Interior Lighting 2.57 2.57 2.13 1.88 1.88

LPG Furnace Domestic Hot Water 13.30 13.30 13.30 12.30 12.27
LPG Furnace Sum 52.44 45.74 43.01 33.58 33.56

LPG Furnace Heating 53.29 45.59 41.86 26.30 26.30

LPG Furnace Cooling 3.32 2.85 2.82 2.86 2.86

LPG Furnace Interior Lighting 2.57 2.57 2.13 1.88 1.88

LPG Furnace Domestic Hot Water 14.50 14.49 14.49 13.37 13.35

LPG Furnace Sum 73.67 65.52 61.30 44.27 44.24

LPG Furnace Heating 46.31 38.63 35.52 22.49 22.49

LPG Furnace Cooling 3.28 2.69 2.66 2.75 2.75

LPG Furnace Interior Lighting 2.57 2.57 2.13 1.88 1.88

LPG Furnace Domestic Hot Water 14.75 14.74 14.74 13.60 13.57

LPG Furnace Sum 66.92 58.65 55.05 40.54 40.51

LPG Furnace Heating 72.84 62.06 57.56 36.75 36.75

LPG Furnace Cooling 2.32 1.94 1.93 2.03 2.03

LPG Furnace Interior Lighting 2.57 2.57 2.13 1.88 1.88

LPG Furnace Domestic Hot Water 15.87 15.87 15.87 14.61 14.58

LPG Furnace Sum 93.61 82.46 77.49 55.11 55.08

LPG Furnace Heating 104.30 89.34 83.53 56.93 56.93

LPG Furnace Cooling 1.76 1.43 1.44 1.56 1.56

LPG Furnace Interior Lighting 2.57 2.57 2.13 1.88 1.88

LPG Furnace Domestic Hot Water 17.58 17.58 17.57 16.15 16.11

LPG Furnace Sum 126.21 110.95 104.70 76.38 76.35
Table 3E. Annual EUI (kBtu/sf/yr) associated with the HUD Cod

EStar RN1Package1RN1Package2RN1Package3RN1Package4 City Name IECC Climate Zone

0.76 0.43 0.43 0.43 0.43 Miami 1A

15.72 12.87 12.85 12.87 12.85 Miami 1A

2.57 1.88 1.88 1.88 1.88 Miami 1A

8.47 7.94 7.94 7.94 7.94 Miami 1A

27.54 23.10 23.08 23.10 23.08 0.76563722 Miami 1A

7.63 5.69 5.69 5.69 5.69 Houston 2A

11.59 9.38 9.36 9.38 9.36 Houston 2A

2.57 1.88 1.88 1.88 1.88 Houston 2A

9.99 9.30 9.30 9.30 9.30 Houston 2A

31.75 26.18 26.17 26.18 26.17 0.7344055 Houston 2A

4.58 2.42 2.42 2.42 2.42 Phoenix 2B

16.48 12.23 12.21 12.23 12.21 Phoenix 2B

2.57 1.88 1.88 1.88 1.88 Phoenix 2B

8.76 8.20 8.20 8.20 8.20 Phoenix 2B

32.41 24.64 24.62 24.64 24.62 0.74176157 Phoenix 2B

NA 11.64 11.67 11.64 11.67 Memphis 3A

NA 7.08 7.07 7.08 7.07 Memphis 3A

NA 1.88 1.88 1.88 1.88 Memphis 3A

NA 10.39 10.39 10.39 10.39 Memphis 3A

NA 30.92 30.93 30.92 30.93 0.73262647 Memphis 3A

NA 6.39 6.39 6.39 6.39 ElPaso 3B

NA 7.23 7.21 7.23 7.21 ElPaso 3B

NA 1.88 1.88 1.88 1.88 ElPaso 3B

NA 10.07 10.07 10.07 10.07 ElPaso 3B

NA 25.45 25.44 25.45 25.44 0.72616273 ElPaso 3B

NA 6.00 6.02 6.00 6.02 SanFrancisco 3C

NA 1.63 1.63 1.63 1.63 SanFrancisco 3C

NA 1.88 1.88 1.88 1.88 SanFrancisco 3C

NA 11.44 11.44 11.44 11.44 SanFrancisco 3C

NA 20.82 20.83 20.82 20.83 0.68878738 SanFrancisco 3C

NA 18.03 18.03 18.48 18.48 Baltimore 4A

NA 5.01 5.01 5.06 5.06 Baltimore 4A

NA 1.88 1.88 1.88 1.88 Baltimore 4A

NA 11.63 11.63 11.63 11.63 Baltimore 4A

NA 36.51 36.51 37.03 37.03 0.72260345 Baltimore 4A

NA 12.73 12.76 12.73 12.76 Albuquerque 4B

NA 4.83 4.82 4.83 4.82 Albuquerque 4B

NA 1.88 1.88 1.88 1.88 Albuquerque 4B

NA 11.46 11.46 11.46 11.46 Albuquerque 4B

NA 30.74 30.76 30.74 30.76 0.7152832 Albuquerque 4B

NA 16.10 16.10 16.61 16.61 Salem 4C

NA 2.81 2.81 2.85 2.85 Salem 4C

NA 1.88 1.88 1.88 1.88 Salem 4C

NA 12.11 12.11 12.12 12.12 Salem 4C

NA 32.84 32.84 33.41 33.41 0.70737669 Salem 4C

NA 28.91 28.91 29.50 29.50 Chicago 5A

NA 3.98 3.98 4.02 4.02 Chicago 5A

NA 1.88 1.88 1.88 1.88 Chicago 5A

NA 12.67 12.67 12.67 12.67 Chicago 5A

NA 47.39 47.39 48.04 48.04 0.71281666 Chicago 5A

NA 18.63 18.63 19.18 19.18 Boise 5B

NA 3.91 3.91 3.97 3.97 Boise 5B

NA 1.88 1.88 1.88 1.88 Boise 5B

NA 12.28 12.28 12.28 12.28 Boise 5B
NA 36.62 36.62 37.24 37.24 0.7102618 Boise 5B

NA 33.66 33.66 34.33 34.33 Burlington 6A

NA 2.76 2.76 2.79 2.79 Burlington 6A

NA 1.88 1.88 1.88 1.88 Burlington 6A

NA 13.35 13.35 13.35 13.35 Burlington 6A

NA 51.60 51.60 52.31 52.31 0.710074 Burlington 6A

NA 28.58 28.58 29.30 29.30 Helena 6B

NA 2.62 2.62 2.66 2.66 Helena 6B

NA 1.88 1.88 1.88 1.88 Helena 6B

NA 13.58 13.58 13.58 13.58 Helena 6B

NA 46.59 46.59 47.37 47.37 0.70789117 Helena 6B

NA 46.65 46.65 47.51 47.51 Duluth7

NA 1.90 1.90 1.92 1.92 Duluth7

NA 1.88 1.88 1.88 1.88 Duluth7

NA 14.59 14.59 14.59 14.59 Duluth7

NA 64.97 64.97 65.87 65.87 0.70365465 Duluth7

NA 69.36 69.36 70.57 70.57 Fairbanks8

NA 1.44 1.44 1.46 1.46 Fairbanks8

NA 1.88 1.88 1.88 1.88 Fairbanks8

NA 16.12 16.12 16.12 16.12 Fairbanks8

NA 88.81 88.81 90.04 90.04 0.71342242 Fairbanks8
u/sf/yr) associated with the HUD Code and the IECC Codes for double-wide manufactured homes (Heating System: weighted on the four heating systems) 

HUD Zone EStar Zone Heating System Enduse HUD Code IECC 2006

1 4 Weighted Average Heating 0.78 0.81

1 4 Weighted Average Cooling 17.49 15.40

1 4 Weighted Average Interior Lighting 2.57 2.57

1 4 Weighted Average Domestic Hot Water 5.31 5.31

1 4 Weighted Average Sum 26.14 24.10

1 4 Weighted Average Heating 7.08 6.74

1 4 Weighted Average Cooling 12.96 10.98

1 4 Weighted Average Interior Lighting 2.57 2.57

1 4 Weighted Average Domestic Hot Water 6.55 6.55

1 4 Weighted Average Sum 29.16 26.83

2 4 Weighted Average Heating 4.23 4.62

2 4 Weighted Average Cooling 16.57 15.87

2 4 Weighted Average Interior Lighting 2.57 2.57

2 4 Weighted Average Domestic Hot Water 6.67 6.67

2 4 Weighted Average Sum 30.03 29.74

2 3 Weighted Average Heating 15.71 16.35

2 3 Weighted Average Cooling 9.23 8.51

2 3 Weighted Average Interior Lighting 2.57 2.57

2 3 Weighted Average Domestic Hot Water 8.83 8.83

2 3 Weighted Average Sum 36.34 36.27

2 3 Weighted Average Heating 9.68 10.13

2 3 Weighted Average Cooling 9.78 8.82

2 3 Weighted Average Interior Lighting 2.57 2.57

2 3 Weighted Average Domestic Hot Water 8.51 8.52

2 3 Weighted Average Sum 30.55 30.04

2 3 Weighted Average Heating 10.76 11.45

2 3 Weighted Average Cooling 2.41 1.81

2 3 Weighted Average Interior Lighting 2.57 2.57

2 3 Weighted Average Domestic Hot Water 9.85 9.86

2 3 Weighted Average Sum 25.60 25.69

3 2 Weighted Average Heating 26.87 25.16

3 2 Weighted Average Cooling 6.07 5.39

3 2 Weighted Average Interior Lighting 2.57 2.57

3 2 Weighted Average Domestic Hot Water 11.20 11.20

3 2 Weighted Average Sum 46.71 44.35

2 2 Weighted Average Heating 17.68 15.79

2 2 Weighted Average Cooling 6.59 5.69

2 2 Weighted Average Interior Lighting 2.57 2.57

2 2 Weighted Average Domestic Hot Water 9.88 9.89

2 2 Weighted Average Sum 36.73 33.90

3 2 Weighted Average Heating 25.22 21.04

3 2 Weighted Average Cooling 3.49 2.79

3 2 Weighted Average Interior Lighting 2.57 2.57

3 2 Weighted Average Domestic Hot Water 11.70 11.70

3 2 Weighted Average Sum 42.98 38.11

3 2 Weighted Average Heating 41.67 35.58

3 2 Weighted Average Cooling 4.79 4.17

3 2 Weighted Average Interior Lighting 2.57 2.57

3 2 Weighted Average Domestic Hot Water 12.28 12.28

3 2 Weighted Average Sum 61.31 54.60

3 2 Weighted Average Heating 28.48 23.28

3 2 Weighted Average Cooling 4.90 4.05

3 2 Weighted Average Interior Lighting 2.57 2.57

3 2 Weighted Average Domestic Hot Water 11.87 11.87
3

2 Weighted Average Sum 47.82 41.76

31 Weighted Average Heating 48.17 41.28

31 Weighted Average Cooling 3.26 2.79

31 Weighted Average Interior Lighting 2.57 2.57

31 Weighted Average Domestic Hot Water 12.99 12.99

31 Weighted Average Sum 66.99 59.64

31 Weighted Average Heating 41.88 35.00

31 Weighted Average Cooling 3.23 2.63

31 Weighted Average Interior Lighting 2.57 2.57

31 Weighted Average Domestic Hot Water 13.23 13.23

31 Weighted Average Sum 60.91 53.43

31 Weighted Average Heating 66.28 56.53

31 Weighted Average Cooling 2.27 1.89

31 Weighted Average Interior Lighting 2.57 2.57

31 Weighted Average Domestic Hot Water 14.28 14.28

31 Weighted Average Sum 85.41 75.28

31 Weighted Average Heating 95.78 82.12

31 Weighted Average Cooling 1.73 1.39

31 Weighted Average Interior Lighting 2.57 2.57

31 Weighted Average Domestic Hot Water 15.89 15.88

31 Weighted Average Sum 115.97 101.99
n the four heating systems) 

IECC 2009 IECC 2012 IECC 2015 EStar RN1Package1RN1Package2RN1Package3RN1Package4

0.79 0.49 0.49 0.57 0.35 0.35 0.35 0.35

14.24 12.40 12.40 14.06 12.30 12.28 12.30 12.28

2.13 1.88 1.88 2.57 1.88 1.88 1.88 1.88

5.31 4.88 4.87 5.31 4.87 4.87 4.87 4.87

22.48 19.65 19.64 22.50 19.40 19.38 19.40 19.38 0.74126365

6.42 4.60 4.60 4.97 4.30 4.30 4.30 4.30

9.76 8.90 8.90 10.05 8.94 8.92 8.94 8.92

2.13 1.88 1.88 2.57 1.88 1.88 1.88 1.88

6.55 5.99 5.98 6.55 5.98 5.98 5.98 5.98

24.85 21.34 21.33 24.08 21.05 21.04 21.05 21.04 0.72159111

4.44 3.02 3.02 3.48 2.13 2.13 2.13 2.13

14.03 12.58 12.58 14.86 11.92 11.90 11.92 11.90

2.13 1.88 1.88 2.57 1.88 1.88 1.88 1.88

6.67 6.19 6.17 6.67 6.17 6.17 6.17 6.17

27.27 23.64 23.63 27.56 22.04 22.02 22.04 22.02 0.73318608

15.00 8.24 8.24 NA 9.77 9.78 9.77 9.78

7.62 6.69 6.69 NA 6.85 6.84 6.85 6.84

2.13 1.88 1.88 NA 1.88 1.88 1.88 1.88

8.83 8.12 8.11 NA 8.11 8.11 8.11 8.11

33.58 24.85 24.83 NA 26.56 26.56 26.56 26.56 0.73090809

9.35 4.63 4.63 NA 5.48 5.48 5.48 5.48

7.78 6.92 6.92 NA 6.98 6.97 6.98 6.97

2.13 1.88 1.88 NA 1.88 1.88 1.88 1.88

8.52 7.84 7.83 NA 7.83 7.83 7.83 7.83

27.77 21.16 21.15 NA 22.08 22.07 22.08 22.07 0.72250681

10.36 4.14 4.14 NA 5.28 5.29 5.28 5.29

1.43 1.72 1.72 NA 1.51 1.50 1.51 1.50

2.13 1.88 1.88 NA 1.88 1.88 1.88 1.88

9.86 9.04 9.02 NA 9.03 9.03 9.03 9.03

23.77 16.66 16.64 NA 17.59 17.60 17.59 17.60 0.68753471

22.83 13.79 13.79 NA 16.28 16.28 16.69 16.69

5.30 4.93 4.93 NA 4.92 4.92 4.97 4.97

2.13 1.88 1.88 NA 1.88 1.88 1.88 1.88

11.19 10.32 10.30 NA 10.30 10.30 10.30 10.30

41.48 30.85 30.83 NA 33.36 33.36 33.83 33.83 0.72418662

14.28 8.37 8.37 NA 10.77 10.80 10.77 10.80

5.65 5.38 5.38 NA 4.64 4.63 4.64 4.63

2.13 1.88 1.88 NA 1.88 1.88 1.88 1.88

9.88 9.07 9.05 NA 9.06 9.06 9.06 9.06

31.89 24.52 24.50 NA 26.22 26.24 26.22 26.24 0.71434192

18.61 11.97 11.97 NA 14.65 14.65 15.11 15.11

2.79 2.92 2.92 NA 2.74 2.74 2.79 2.79

2.13 1.88 1.88 NA 1.88 1.88 1.88 1.88

11.70 10.78 10.75 NA 10.76 10.76 10.76 10.76

35.21 27.45 27.43 NA 29.97 29.97 30.49 30.49 0.70941291

32.64 21.62 21.62 NA 26.17 26.17 26.71 26.71

4.08 3.99 3.99 NA 3.91 3.91 3.94 3.94

2.13 1.88 1.88 NA 1.88 1.88 1.88 1.88

12.27 11.30 11.27 NA 11.28 11.28 11.28 11.28

51.12 38.68 38.66 NA 43.19 43.19 43.77 43.77 0.7138097

21.33 14.13 14.13 NA 16.94 16.94 17.42 17.42

3.97 4.00 4.00 NA 3.84 3.84 3.90 3.90

2.13 1.88 1.88 NA 1.88 1.88 1.88 1.88

11.87 10.93 10.91 NA 10.91 10.91 10.91 10.91
39.28 30.81 30.79 NA 33.49 33.49 34.06 34.06 0.71213123

37.91 23.92 23.92 NA 30.53 30.53 31.13 31.13

2.76 2.80 2.80 NA 2.69 2.69 2.72 2.72

2.13 1.88 1.88 NA 1.88 1.88 1.88 1.88

12.99 11.94 11.92 NA 11.92 11.92 11.92 11.92

55.78 40.39 40.37 NA 46.97 46.97 47.61 47.61 0.71066057

32.21 20.53 20.53 NA 25.98 25.98 26.63 26.63

2.60 2.68 2.68 NA 2.56 2.56 2.60 2.60

2.13 1.88 1.88 NA 1.88 1.88 1.88 1.88

13.23 12.15 12.13 NA 12.13 12.13 12.13 12.13

50.16 37.08 37.05 NA 42.48 42.48 43.18 43.18 0.70899516

52.46 33.64 33.64 NA 42.60 42.60 43.38 43.38

1.88 1.97 1.97 NA 1.85 1.85 1.88 1.88

2.13 1.88 1.88 NA 1.88 1.88 1.88 1.88

14.28 13.10 13.07 NA 13.08 13.08 13.08 13.08

70.75 50.45 50.42 NA 59.36 59.36 60.18 60.18 0.70454212

76.82 52.53 52.53 NA 63.87 63.87 64.97 64.97

1.40 1.52 1.52 NA 1.40 1.40 1.42 1.42

2.13 1.88 1.88 NA 1.88 1.88 1.88 1.88

15.88 14.55 14.51 NA 14.52 14.52 14.52 14.52

96.25 70.34 70.31 NA 81.66 81.66 82.79 82.79 0.71395967