Lawrence Berkeley Laboratory

1 Cyclotron Road Berkela, Calffo 'a 94720

(510) 486-4000 - PI'S 451-4000 i

ENERGY ENVIRONMENT DIVISION

ENERGY ANALYSIS PIRG

BUILDING 90 MAIL STOP 4000

FAX (510) 486-6996 [FTS 451-69961

DATE: June 5. 199

FAX Number: 202-586- 61'7

TO: laic ael Raymond 2 2-586- 11

Office or Location Phone Number

FROM: Greg osenouist

C

51 0-4§g&851

Office or Location Phone Number

ADDITIONAL INSTRUCTIONS

Michael,

Attached are installed costs for central a/c and heat pump systems from

four sources: 1.) LBL report on advanced technologies, 2) State of New Jersey,

3) Chas Roberts Air Conditioning, Inc. (Phoenix, AZ), and 4) Cayce Company,

Inc. (South Carolina). Costs vary depending on the area of the country. The

installed costs, include the equipment cost A ND the installation cost.

If you have any questions, give me a call or drop me an e-mail.

I

Pages including this cover: ' 15

EE-RM-93-801 COMMENT 0KK

Lawrence Berkeley Laboratory 

1 Cyclotron Road Berkeley, California 94720 

(510) 486-4000 • FrS 451·4000 k 

ENERGY AND ENVIRONMENT DIVISION 

ENERGY ANALYSIS PROGRAM 

BUILDING 90 MAIL STOP 4000 

FAX (510) 486-6996 [FTS 451-6996] 

= 

DATE: June 5, 1996 

TO: Michael Raymond 

FROM: Greg RosenQyist 

FAX Number: 

Office or Location 

Office or Location 

202-586-4617 

2Q2-586-$611 

Phone Number 

.510-4&6-6851 

Phone Number 

[ - ADDITIONAL INSTRUCTIONS 

Michael, 

Attached are insta.1led costs for central a/ c and heat pump systems from 

four sources: 1.) LBL report on advanced technologies, 2) State of New Jersey, 

3) Chas Roberts Air Conditioning, Inc. (Phoenix, AZ), and 4) Cayce Company, 

Inc. (South Carolina). Costs vary depending on the area of the country, The 

installed cost;:.; include the equipment cost AND the installation cost. 

If you have any questions, give me a call or drop me an e-mail. 

Pages including this cover: 15 

] 
EE-RM-93-801 COMMENT 0KK

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ENE'RGY & ENVIR" . ...... : .. ', 

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DIVISION , ..... 

Evaluation of Advanced Technologies tor ResideDtiai 

Appliances and Residential and Commerdal Lighting ., .... 

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1. TUllel. B. Atkinson. S. Boghosian, P ~ ~ 1~ Jennings. I. Lott. 

J. McMahon, and G. Rosenquist.' " 

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January 1995 

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·,;,~ .••• ,:,i'".:",'.~,·~,.;.',\."~,~.J,,,:.:i,.;,(.',r,:1,il~~~;.;i:'~~(-- :::: ~"~.~:,.~", ...... :'" .; ':.,.;' "7..<:: 

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Table 5.12 Efficiencies, UECs, Costs and 1.y7m, - ° s far Gro

AI Payback

years

cast

$5,936 13

11

$5,318 13

10

$6,379 7

9

$5,619 7

10

For this report, we selected one system to r resent h ty of ® ci-s^ heat pump system

(i.e., one system selected for space-co a ui only d another sel ted for inte

ui t). Based on their cost eff ^eness at provi ' tional energy sa ' gs,

ditioning and integrated eysteras were selected. (Vaffakle-speed ground-source systems

were not considered because t y are not yet commercially availa e.)

Banters a"Iers to lmpl eratrs ' r^. The primary barrier to implementation seeftto the system's high

cost. But

ft useed of ground

- use of dr. potential that exists for shaving high sumo ak loads ugh

urce heat pumps, many utilities seriously considering re pro and

other only In c1 ncentives to promote diis technology. But a high installed cost 1 of the

b ier. ct1B1e for servicing ffie equipment is not yet y fuml place. ecause

ground at pumps have a low market penetration, consumers are wage of the Is em's

perf cc and fight not want to purchase a seemingly untested hnology. The large land ea

ed to install the equipment might prevent consumers from considering ground-source. heat

pumps as a space-conditioning option.

5® ®2 Air-Source eat Pumps and Integrated Applian

Present Swus. The most efficient air-source heat pumps are the variable-speed and two-speed

models- Variable-speed heat pumps employ electronically cammutated motors 03CM) (also referred

to as brushless pe.anent magnet motors). Thew motors more efficient than the induction

motors used in single-speed systems. In addition, the speed of the ECNIs can be varied to match

59

EE-RM-93-801 COMMENT 0KK -

Table S.U Efficiencies, UECs, Costs and Payback$ for Ground-Source Beat Pumps, 

South Region 

BefitEll' CooJEff VHWm Replaced Si(eUEC 

Spee4s avgCOP avgEER 4'11gCOP System kWWy,. years 

~ 4.21 16.12 Eiec: Heat Pump 13 

Gas FudElecAC 1) 

1-speed Spacecond. 13.U Elee Heat Pwnp $5,318 l~ 

Gas FurJEJee AC 10 

2-speed Inregrated 14.44 3.01 $6.379· 7 

9 

l~ Inrepred 3.68 un $5,619 7 

10 

For this report, we selected one system to r resent h type of ground-source heat pump system 

(i.e., one system selected for spare-condi . ning equi only and another selected for integrated 

equipment). Based on their cost efft veness at providing tional energy savings. the two-speed 

space-conditiomng and integrated terns were selected. (V Ie-speed ground-source systems 

were not considered because t y are not yet commercially availa e.) 

Barriers to lmplementa . n. The primary barrier to implementation to be the system's high 

installed cost But use of the potential that existS for shaving high summ 

the use of ground- urce heat pumps, many utilities cue seriously considering re programs and 

other finanei ncentives to promote this technology. But a high installed cost 1 ot the only 

barrier. infrastructure for serviCing the equipment is not yet firmly in pla.ce. ecause 

ground- ce beat pumps have a low market penetratio~ consumers are unaware of the s em's 

per.t; ce and .might not want to purchase a seemingly untested technology. The large land ea 

n ed to install the equipment might prevent consumers from considering ground-source heat 

pumps as a space-conditioning option. 

5.6.2 Air-Source Heat Pumps and Integrated Appliances 

Present StatUs. The most efficient air-source heat pumps are the variable-speed and two-speed 

models. Variable-speed heat pumps employ electronically oommutated motOl'S (ECM) (also referred 

to as brushless permanent magnet motors). These motors are more efficient than the induction 

motors used in single~spced systems. In addition. the speed of the ECMs can. be varied to match 

59 
system capacity more precisely to a building load, and thus, to improve system efficiency by

significantly reducing cycling losses. Because ECMs retain their efficiency at low s(unlike

induction motors), energy use is also significantly reduced at low-load conditions.

Two-speed heat pumps, like variable-speed models, also capable ofreducing cycling losses. By

employing two-speed induction motors to drive the compressor and fans, the system can operate at

two distin' ct capacities. Cycling losses =reduced because the heat pump can operate at a low sd

to meet low building loads. some models, two-speed compressors are coupled with

variable-speed indoor blowers to improve system efficiency further.

Two heat pump u rs, Carrier and Te, currently offer variable-speed heat pump models.

er offers models with cooling capacities of 2 and 3 tons. Models w ith cooling capacities of 2.5,

3, 4, and 5 tons are offered by Trane. Two-speed heat pump models are offered by both Carrier

and Lennox (another beat pump manufacturer) in 3-, 4-, and 5 -ton cooling capacities.

EPRI and Carrier have co-sponsored development of a variable-speed integrated heat pump that

provides water heating in addition to space conditioning. The integrated heat pump model was

marketed by Carrier under the trade HydroTech 2000. The heat pump provided almost all

water heating needs through the use of a tube-in-tube heat exchanger (EPRI, 1991). Due to low

sales volumes, Carrier removed the HydroTech 2000 from the market in January 1993. The

ydroTech 2000 was offered in 2- and 3-ton cooling capacities.

EP also co-sponsored the development of a single-speed integrated heat pump with Nordyne

Corp. Nordyne cunently markets two different models ofsingle-speed integrated beat pumps under

the Powe scr tr-ade name. Both models are offered in 2-, 3-, and 4-ton cooling capacities.

Energy Use and Cost. Efficiency ratings for air-source pumps are SEER for cooling and HSPF

for heating. These seasonal efficiency ratings and are meant to represent more accurately the

seasonal perfommoe of the he-at pump. . aptly the. DOE does not have an official test procedure

for rating integrated air-source heat pumps. Work has been on-going at the National Institute of

Standards and Technology (NIST) to develop one. Without a specific test procedure for integrated

systems, the individual functions of the system tested with the appropriate test procedure. The

space-conditioning pcr&rm=ce is rated in accordance with the DOE test procedure for heat pumps,

while the water-heating performance is tested in accordance with the DOE test procedure for water

heaters.

Table 5. 13 provides the efficiency ratings, site unit -energy consumptions, installed costs and

payback periods of various variable-speed, two-speed, and integrated heat pumps. For a discussion

on the formulation of the unit energy consumptions and payback periods, refer to Appendix 5.2.

For each manufacturer listed in the table, the ratings of both the high-ef ciency el, -e

average of the entire model line are reported. The fourth to last col in the table reports the

efficiency ratings that were chosen to represent the particular technology for this analysis. With

regard to variable-speed heat pumps, the most efficient model on the market was chosen as being

representative for the technology. $ d on discussions with manufacturers, indications are that

60

9

EE-RM-93-801 COMMENT 0KK

system capacity more p:recisely to a building load, and thus, to improve system efficiency by 

significantly reducing cycling losses. Because ECMs retain their efficiency at low speeds (unlike 

induction motors), energy use is also significantly reduced at low-load conditions. 

Two-speed heat pumps, like variable-speed models, are also capable of reducing cycling losses. By 

employing two-speed .induction motors to drive the compressor and fans. the system can operate at 

two distinct capacities. Cycling losses are reduced because the heat pump can operate at a low speed 

to meet low building loads. In some models1 two-speed compressors are coupled with 

variable·speed indoor blowers to improve system efficiency further. 

Two heat pump manufacturers, camer and Trane, cwrently offer variable-speed heat pump models. 

Canier offers models with cooling capacities of 2 and 3 tons. Models with cooling capacities of 2.5. 

3, 4. and 5 tons are offered by Trane. Two~speed heat pump models are offered by both Carrier 

and Lennox (another heat pump manufacturer) in 3-, 4-. and 5-ton cooling capacities. 

EPRl and Carrier have co-sponsored the development of a variable-speed integrated heat pump that 

provides water heating in addition to .space conditioning. The integrated heat pump model was 

marketed by Carrier under the trade name HydroTech 2000. The heat pump provided almost aU 

water heating needs through the use of a tube-in-tube heat exchanger (EPRI. 1991). Due to low 

sales volumes, Carrier removed the HydroTech 2000 from the market in January 1993. The 

HydroTech 2000 was offered in 2- and 3-ton cooling capacities. 

EPRl also co-sponsored the development of a single-speed integrated heat pump with Nordyne 

Corp. Nordyne currently markets two different models of single-speed integrated heat pumps under 

the Powermiser trade name. Both models are offered in 2-, 3-, and 4-ton cooling capacities. 

Energy Use and Cost. Efficiency ratings for air-source heat pumps are SEER for cooling and HSPF 

for heating. These are seasonal efficiency ratings and are meant to represent more accurately the 

seasonal perlonnanoe of the heat pump. Cw:rent1y the DOE does not have an official test procedure 

for rating integrated air-source heat pumps. Work has been on-going at the National Institute of 

Standards and Technology (NlST) to develop one. Without a speCific test procedw:e for integrated 

systemS. the individual functions of the system are tested with the appropriate test procedure. The 

space-ronditioning performance is rated in accoxdanoe with the DOE test procedure for heat pumps, 

while the water-heating performance is tested in accordance with the DOE test procedure for water 

heaters. 

Table 5.13 provides the efficiency ratings. site unit energy consumptions, installed costs and 

payback periods of various variable-speed, two-speed, and integrated heat pumps. For a discussion 

on the formulation of the unit energy consumptions and payback periods. refer to Appendix. 5.2. 

For each manufacturer listed in the table, the ratings of both the high-efficiency model. and the 

average of the entire mode! line are reported. The fourth to last column in the table reportS the 

effiCiency ratings that were chosen to represent the particular technology for this analysis. With 

regard to variable-speed heat pumps, the most efficient model on the market was chosen as being 

representative for the technology. Based on discussions with manufacturers, indications are that 

60 
current variable-speed systems optimized to yield oven higher efficiencies. Thus, the most

efficient model was chosen as being the most representative of the technology.

Installed costs for the variable-speed, two-speed, and variable-speed integrated systems were

providedby a manufacturer (Swan, 1993). The ir_ =1I rest ofthe sing_-, integrated system

was based on estimates ftm contractors.

Table 5-13 Efficiencies, UECs, Costs and Paybacks of Air-Source t ftraps

ex Noes Site C IWWI Payback

to l$1 Avg Avg Avg Avg__ Sdect k r Cost years

16.0 15.4 16.4 15.0 - - - 16.4 4,675 Q,500 25

3' HSPF 10.2 9.5 8.7 8.9 10.2

TWO- - S 16.0 14.0 14,9 13.5 »»»- 15.0 ...5.245 $5,50^O»»» 20

_ _ PF 9.0 ..8.0...-.., ... »...»... _ 8. -...8.4 9.0

Var.- SEER 14.1 - - - - - - 14.1 7,148 $10,500 44

Specd 115FF 9.05 - - 9.05

Int COP 2.40 - 2.40

Single- SEER - - - - - - 12.0 12.0 7,955 $6,450 81

speed HSPF - - - - - - 8.0 8.0

fit. COP - - - - - - 2.35 2.35

Because a majority of U.S. heat pump installations are in the South, we chose to compare heat pump

Cs, shown in Table 5.14, based on a southern climate rather than the national average. Variations

efficiency were do EPA reponed values . (EP3) The same assumptions were

to develop efficiency and OEC regional variations for ground source heat pumps were also applied

to aft-source heat pumps- The new installed costs and payback periods in Table 5.14 have been adjusted

to reflect a mature market (i.e.. higher production volumes) and to account for the lower cost for

,g a tem in the South (EPA, 1993). The mature market installed cost reductions are based on

the n ereductions in the total installed costs for ground-source systems. The variable-speed airsource, 2- air-source, integrated variable-speed air-source and integrated singIc-speed air-source

sYMIns have, the same Percentage reductions as the 2-speed ground-source, single-speed ground-source,

integrated 2- ed ground-source and integrated single-speed ground-source systems, respectively.

61

(S)

EE-RM-93-801 COMMENT 0KK

current variable-speed systems can be opti.m.ized to yield even higher efficiencies. Thus, the mOst 

efficient model was chosen as being the most representative of the technology. 

Installed costs for the variable-speed, two-speed. and variable-speed integrated systems were 

provided by a manufacturer (Swan. 1993). The installed cOSt of the single-speed integrated system 

was based on estimates from contractors. 

Table 5013 Efficiencies, UECs, Costs and. Paybacks of Air • .sour~ Beat Pumps 

Carrier Trane Lennox Nordyne 

Rate Hi AVJ Hi Avg Hi Avg . Avg Select 

SBER 16.0 15.4 16.4 15.0 16.4 

HSPF 10.2 9.5 8.1 8.9 - - • 10.2 

SiteUEC 

IcWhlyr 

4.675 

l:nstaJl Payback 

years 

2S 

N-siiil6T"i"4.0~--:"·"·' - ·"i4:9-i~-:----i5~O··--5.245-~--W-

~.;;.!Iiliiii~ _____ HSPF .... _ ... 9.0 ___ .......... 8.0 _____ - - ..... ao.o._ ...... 80 _•••• __ 8.4 - - __ 9.0 ._ .... __ ._ ....... _."_~ ___ . 

Var.- SEER. 14.1 14.1 7,}48 $10.500 44 

Speed HSPf' 9.05 9.05 

__ 

1m. COP 2.40 • - • _. - • 2.40 ........... _.--..._ .. ____ ......... __ ..................... ___ ............ ....--..... __ .. __ ----.... _1"._-............. __ ._-----

Single- SEER 12.0 12.0 7.955 $6,450 81 

Speed HSPF 8.0 8.0 

lot COP 2.35 2.35 

Because a m~ority ofD.S. heat pump installations are in the South, we chose to compaxe heat pump 

UECs, as shown in Table 5.14, based on a southern climate rather than the national average. Variations 

in efficiency were detennined from EPA reported values. (EPA. 1993) The same assumptions that were 

used to develop efficiency and DEC regional variations for ground-source heat pumps were also applied 

to air-source heat pumps. The new installed costs and payback periods in Table 5.14 have been adjusted 

to reflect a mature market (i.e .. higher production volumes) and to account for the lower cost for 

installing a system in the South (EPA. 1993). The mature market installed cost reductions are based on 

the percentage reductions in the tow installed costs for ground-source systems. The variable-speed airsource, 2-speed air-source, integrated variable-speed air-source and integrated single-speed air-source 

systems have the same percentage reductions as the 2-speed ground-source. single-speed ground-source, 

integrated 2-speed ground-source and integrated single-speed ground-source systems, respectively. 

61 
Table 5.14 Efficiencies, , Ccsr3 7'ybac for -Source Beat i, br,r

Rem Eff t Eff s C

Speeds 7 IISPF SEER COP k r

Vas spd Spa= cd.

5 coed.

ver-so 9n^ tcd

1n

1

10.74 15.73 Elec Heat 5,162 13

Gas Fur/Mcc AC 4,770 9

9.49 14.39 El 5,778 9

Cru ec AC 5,336 3

10.22 13.31 2.64 Elm + Elec 7,327 $7,209 10

Fknm/A 6,910 18

9.03 11.33 259 Eta HP -.I. Eke WH 3,201 $4,$63 5

FundAC+GasWH 7,727 6

For this report one system was selected to represent each type of air-source heat pump system (i.e.,

one system selected for space-conditioning only equipment and another system se for

integrated equipment). Based on their cost

'

effectiveness at providing national energy savings, the

variable-speed systems were selected.

Barriers to Implementation. The primary obstacle for the implementation of variable-speed and

systems is their high. installed cost. Proper servicing of the equipment also seems to be

a barrier. These systems generally "loaded' with electronics and service technicians usually

not knowledgeable about properly servicing them. Problems with the systems tend to be blamed

initially on the electronics. Maintenance costs are significantly increased when replacement .of

electronics does not solve the problem.

5.7 v A T E L

Evaporative coolers energy-saving alternative to air conditioning' suited to and to moderately

humid climates. Since they only require power to drive fans and pumps, evaporative coolers

consume much less electricity conventional air conditioners. For evaporative coolers, the

technology options considered in detail are listed following. The technologies are part of the top

16 advanced technologies presented in Table 5.4.

1. Single-Stage Direct Evaporative Coolers

2. Two-Stage Indirec ct Evaporative Coolers

62

EE-RM-93-801 COMMENT 0KK

Table 5.1.4 Efficiencies, UECs, Coots and Paybacks for Air"Source Heat Pumps, South 

Region -- - Beatm Coole DBWU SiteUEC Mat-Mia Parbaek 

Speeds TlJ!! HSPF SEER COP SJlIWIl . "WIlly,. IDst.Cost )'e41'S 

Cos€) Spacecood. 10.14 15.13 Eec HeatPwnp 5.162 C@D 13 

Gas FutIElec AC 4.710 9 

~J Spacecond. 9.48 14.39 £lee Heat Pump 5.71g Cs¥zf) 

Gas furJElec AC 5.336 " :3 

Var-spd Jnlegratcd 10.22 13.31 2.64 Elec HP + Elec VlH 7.327 $7.209 10 

Fum/AC ... Gas WH: 6,910 18 

I-speed In~ 9.!)3 11.33 2.58 E1ec HP + Eiee WH 3.201 $4,563 5 

Fum/AC + Gas WH 7.127 6 

For this report one system was selected to represent each type of air-source heat pump system (i.e., 

one system selected for space-conditioning only equipment and another system selected for 

integrated equipment). Based on their cost effectiveness at providing national energy savings. the 

variable-speed systems were selected. 

Barriers to Implememarion. The primary obstacle for the implementation of variable-speed and 

two-speed systems is their hi!!h installed cost. Proper servicing of the eqwpment also seems to be 

a barrier. These systems are generally "loaded" with electronics and service technicians are usually 

Dot knowledgeable about properly servicing them. Problems with the systems tend to be blamed 

initially on the electronics. Maintenance costs are significantly increased when replacement .of 

. electronics dQes not solve the problem. 

5.7 EVAPORATIVE COOLING 

Evaporative coolers are an energy-saving altemative to air conditioning suited to arid to ~oderately 

humid climates. Since they only require power to drive fans and pumps, evaporative coolers 

consume much less electrici~ than conventional air conditioners. For evapora.tive coolers, the 

t.eclmology options considered in detail are listed following. The technologies are part of the top 

16 advanced tecbnologies presented in Table 5.4. 

1. Single-Stage Direct Evapoxauve Coolers 

2. Two-Stage IndirectIDirect Evaporative Coolers 

62 
Table _2.4 Costs and Efficiencies

8.73

6.80 10.00

Clas Water Ho ater $400 - - 0.544

Oil Water Heater $2,250 - - 0.520

Elect& Water Heater $380 - - 0.881

Gas F / Central AC $3,900 0.78 10.00 -

04 Fvm= / Central AC $5,453 0.78 10.00 -

Elec Furnace / Central AC $2.940 1.00 10.00 -

Cant Heat Pump/ Elsa $3,080 6.80 10.00 0.881

GasF^CACIGnWH $3,900 0.78 10.00 0.544

CWF=/CAC/OnWH $7,703 0.78 10.00 0.520

E0c CAC / Elec S3,320 1.00 10.00 0.881

Gas Furnace / Gas WH $1,960 0.76410.71EF - 0.544

To illustrate how a payback period is calculated for advanced technology, we examine the case

of a gas condensing fax (90.5% E), replacing the need for a standard efficiency fwmace. Gas

and electric source Cs were established for the condensing furnace in Section 3. To obtain

operating cost, the source Cs are converted to site values and multiplied by the current electricity

and gas rates. The C of the base case technology, a 78% AFUE gas furnace, is determined using

the same methodology as was used for the condensing gas furnace. The following equation

represents the calculation necesM for determining the payback period of a gas condensing fusnace:

Payback Period = (Coned F 11 Cost - Base Cwe Cost) _ (Base r Cost Cond F Opor C4sQ

Conti Furn Operating Cost = (Gas Site TJEC * Gas Cost) + (Electric Sit UEC * Electricity Cost)

= (43.90 MNMIU ' $6.90 tan) + (323 kWh/yr * $0.087/kWh)

$331.01

Installed Cost $2690

Base Case Operating Cost = (Gas Site UEC * Gas Cost) + (Electric Sit UBC * El city Cost)

(50.93 to * $6.90 tu) + (458 k yr * $0.087/k )

$391.27

Base Case In*ralled Cost = $1560

Payback Period _ ($2690 - $1560) = ($391.27 - $331.01) _ 18.75 years

Thus, if advanced technology is targeted to replace only one system type, the calculation of the

payback is relatively simple and straightforward. But for those advanced technologies that are

targeted to replace more than one type of system, a more involved procedure is used to develop a

shipment-weighted payback.

143

EE-RM-93-801 COMMENT 0KK

J 

Table 5.2.4 Base Case InstaJIed Costs and Efficiencies 

EOic:imcy 

IaslAiled HtadDg CMlmg DHW 

Teclw.oIogy c-. AFUElHSPF SEERlEER EF 

GasFllmaae Sl,560 0.1& 

OiIfumaae $3,513 0.78 

Electric Fumllce $1,000 1.00 - ~tra1 

Room Air 

Alr('..ond~ 

Colld 

CS~40..? 

5400 ~ 8.13 

C§1l~Heal~ ~~ 6.80 10.00 

Gas Water Hearer $1100 0.544 

Oil Water HeaLer $2,250 0.520 

Electric Water Healer $380 0.881 

Gas PIl1'!W:e I Centnd AC $3,500 0.78 10.00 

00 fwnaccl Central AC $5,453 0.78 10.00 

Bee Fuma.ce I Central AC $2.940 1.00 10.00 

Cent Heat Pumpl Elce WH $3,080 6.80 10.00 0.8S1 

Gas Fum! CAe I Gas WH 53,900 0.78 10.00 0.544 

Oil fum I CACI Oil WH $1,103 0.18 10.00 0.520 

Sec FumI CAe I ElecWH S3,320 l.oo 10.00 0.881 

Gas Furnace I Gas WH $1,960 O.764/0.71EF OS44 

To illustrate how a payback period is calculated for an advanced technology, we examine the case 

of a gas condensing furnace (90.5% AFUE) replacing the need for a standard efficiency furnace. Gas 

and electric source UECs were established for the condensing furnace in Section 3. To obtain 

operating cost, the source UECs are convened to site values and multiplied by the current electricity 

and gas rates. The UEC of the base case technology, a 18% AFUE gas furnace, is determined using 

the same methodology .as was used for the condensing gas furnace. The following equation 

represents the calculation .necessary for determining the payback period of a gas condensing furnace: 

Payback Period :0: (Cond Fum IDstaU Cost· Base Cue JnstaU. Cost) ..;. (Base Oper Cost .. Cond. Fum Opel." Cost) 

COM Fum Operating Cost '" (Gas Site UEC '" Gas Cost) + (Electric Sit VEC II< EleGtricity Cost) 

... (43.90 MMBm *' $6.90lMMBtu) + (323 IcWhlyr * SO.087IkWh) 

"'" $331.01 

CoM Fum Installed Cost :!!! $2690 

Base Case Operating Cost "" (Gas Site UEC '* Gas Cost) + (Electric Sit DEC '* Electricity Cost) 

". (50.93:MMBtu <II! S6.90IMMBtu) + (458 kWblyr:6: SO.087IkWh) 

". $391.27 . 

Base Case Iru.-r.a11ed Cost "'" $1560 

Payback Period "" ($2690 - 51560)..;. ($391.27 - $331.01) = 18.15 years 

Thus. if an advanced technology is targeted to replace only one system type. the calculation of the 

payback is relatively simple and straightforward. But for those advanced technologies that are 

targeted to replace more than one type of system. a more involved procedure is used to develop a 

shipment-weighted payback. 

143 
Table 5.2x5 Cs, InstaHed. Costs, Payback Periods, and Shipments of

Advanced Technologies

r.= sbg

73.6 1312 $8 $5,150 4AS 23.0

60.4 4.05 23.1

110-

181

60.1

64.7 5626

55.450

$2,690

520,000

70.6 6136 57,512

80.1 6969 - 56.872

66.6 5789 S7'000

6279 - 55,000

5278 - $19,500

627 5849

696 $1,660

418 $17,143

4.05

3.19

3.19

3.19

$10,500 3.19

$6,405 3.19

$11.416 3.19

$7,662

3.19

Cos

Gas

Gas

Ga

Gas

Gas

-Vart-=:' aS AdAsr-S^n^ Hem PW-00

Slac I - ,,u J Ar-S die f

13ec Y 1 2 Giound-soume p

-S re F1P

Eke Siagle4pmd -Source HP

Etc hagmud tax Sp=d Air Sov= 1W

Ejec b c Single-Spnd Air-Souse HF

Eke hm*=d Ya Spd Grow

Eec Int TWO-SpW4 0S13P (do(

Ek e Itat Two• G

Elec Jet Si4gk•S G ear)

V Air

Air,, AfC

Else FV-powered Var4pd Air.&

Siaa$1 Evap Comm

Sin Room Evap Coal=

2-StWIacHn=dDkw Cent Evap Cool

Cal-. . Heat

.Driven Heat PAbp

I=HM Rimp,

ft- AMMM

A6

Wne-Difta HP

um He= tF

Var-Spd Ai

AtC

=wHP

sure Air Cond.

ProgrM

A/C

UEC

rwyr

72.2

60

7.2

8.0

4.8

94.3 1 1727 75

77.4

Site

kWhfy? 31ulyr

734 52

539

216

539

$7,250

$6,0

.901

4.05 14.

4.05

221

Mrs

18.1

3.19

20.5

3.19 26.6

3.19 15.8

11.6

25.1

17.5

67.5

44.3

80.8

33.3

22.5

104.7

22.1

88.1

434.4

0.0

0.0

1.05 5.4

0.67 6.6

612 70 1 $4,270 $ 0.72 6.7

114.4 1988 92 $6.750 0.67 13.3

6.24 (1) $250 6.84 6.0

17.2 (1) - 5116 0.722 (2) 6.1

Advanced Tech

1IP(

Eke 43agh

$ligh- y Mini-Split. /C

Elw PV .-SplitA/C

Co

4)ei Haaae tioo HaU Fwnp

Ow,

Mond service Improve

(1) savings UEC to 2dvwwcd technology.

(2)14cluda exi ' g iing stuck in she year 1998 affected by advaumd tec gy.

(5) Ranking the Technologies

In order to rank importance of the advanced technologies considered for this analysis, a ranking

index was created. The index is a function of the advanced technology's C savings (with respect

145

-p-_itInstalled

cost

e

1a

EE-RM-93-801 COMMENT 0KK

j 

Table SolS UECs, Installed Cos~ Payback Periods, and Shipments of 

Advanced Technologies 

~ Shi~t.-

__ tWeiP~ Wei,pted WelPted 

~ Site IastalIed 1998 PayMd( 

UEC VEe Coat Shiptnellts 

M'I'ueed TedaM&ogy MMJJlUlyr kWWyr /llMBlulyr milliqllS 'fears 

Ga$~&atl"limp 13.6 1312 58 55.150 4.05 23.0 

Ga$~.DriwaHe<l.1 Pump 60.4 734 Sl Si.2S0 4.OS 13.1 

Gas ~Heal PI.!mp 60.1 7tiZ 51 SS.45O 4.OS 12..0 

Gas . Furnace 47.0 323 44 52.690 2.21 lSJi 

Ga$lII~Ab~HP 93.6 1615 75 55,860 4.05 14.0 

Gas IfUIe~ ~rJe.Driveo lIP 81.1 953 71 SII.010 4.05 18.1 

Gas~ Waw- Healer I Fumaee 6S-S 469 60 $3,450 2.21 11.6 

/" EIe!: Varii!lble~_Air-Source Hell! Punii) S.U 467S · I( 3.19 15.1 

C J3lec ~ AiJ-5OW'Ce He:\t Pump ...;> 60.3 524S - Ie Ss.soo ) 3.19 20S 

Eec Var-SjIeed GftIund-Souroe aeat PUmp 40.0 34715 · S10.141 3.19 26.6 

!:lee T~ Ground-SoorceHP 44.4 3862 - $7.192 3.19 15.8 

Ek:c s~~ Gaoond·SourceHP 52..0 4511 · $6,552 3.l9 17.5 

£lee f'V~ VIr·SpdAir.Somce HP 43.8 3811 - $20,000 3.19 61.$ 

Eec ~ Vw-Speed Air-~lD' 82.2 i148 · Sl0,5oo 3.19 44.3 

EIec lilt Sinp!.speed Air·Soolte. HP 91.S 7955 - U,40S 3.19 l!OJ! 

EIec: ~ Vat-Spd Groond-S_ HP 58.2 506$ · $11.416 3.19 19.5 

Elec Int 1'~Spcll(! GSHP (dctlicated HX) 64.7 5626 · 57,662 3.19 U.S 

~ lilt Two-Speed GSW> (des~) 70.6 6136 - $7,s12 3.19 13.1 

Sec 1IK SiAgIe'Speed GSHP(~} 80.1 6969 · 56.872 3.19 16.3 

( !lee VlIIisble-Speed Air-Source Ai: Cond. ) 66.0 S1i9 · IC $7.000.) 1.10 33.3 

( ~ 'fIIrct.S~ Aif.So\Iri::Ie NC ) 72.2 6119 - If' 55.000) 2.80 :n.s 

Eiee PV~ VIr·SlId Air·Seun:eA/C 60.7 5278 - S19.5OO 2.80 1M.' 

Eke High-Efficie.ocy Room AlC 1.2 627 · 5849 4.23 22.1 

EIee High-~yMi.ni-Sp)jt AJC 8.0 696 - SI.o6() 4.23 8S.1 

!lee PV -powelCd. Mini-Split A/C 4.8 418 · 511.143 4.23 434.4 

Sillr!~ ~ CenlnI. EV<If> Coolers 6.2 539 - $1.663 0.33 0.0 

Sin~ DWetRoom Ev~1p Coolers 2.5 216 - $225 0.38 0.0 

2-Stagelu~ CentEvap Coolm 6.2 539 · $2.901 1.0S 5.4 

Oil ~HeatPump 94.3 1127 75 $6.050 0.67 6.6 

0il0l~~ 11.4 6t2 10 54.270 o:n 6.7 

Oil buegrared Ab$crplioo Heal. Pump 114.4 1988 92 56.750 0.67 13.3 

Lenk.age-~ Ducts 6-Z4(l) . · $250 6.84 . 6.0 

Nlllioaal Service Improvement Prognun 17.2 (1) - - S116 0.12(2) 6.1 

(1) UEC ~s due to advanc:ed tecMology. 

(2) Itlclwles exismg housing stock In !be year 1998 affected by adv;moed ruiluoltQ'. 

(5) Ranking the Technologies 

In order to rank the impoItance of the advanced technologies considered for this analysis, a ranking 

index was created. The index is a function of the advanced technology's UEC savings (with respect 

145 
ID= PAGE 1 rv-28-93 26_O9 PROM=

STATE JERSEY

DEPARTMENT OF °`` ` : rC ]`m PROItCTION AND ENERGY

^. Os _ x s _ 17TAL FORM

I'll-EASE L"t ®: ATTACHED Cr°' 1--IT:

T : f- "6

SENDING

C ATE:- 1 OF PA099 WITH V :

CL 11 :

TELEPHONE: __ Q) d--4 -62 ®a

you

EE-RM-93-801 COMMENT 0KK

,r "."''''.''''-':''''~'.-'''''' 

/" 

1D: 

STATE OF NEW JERSEY 

DEPARTMENT OF ENVIRONMENTAL PROTECTION AND eNERGY 

TELEFACSIM.lE TRANSMfTT AL FORM 

PLEASE FORWARD ATTACHED DOCUMENT: 

NUMBER OF PAGES WITH COVER: ____ 6 __ -

C<:'NTACT peRSON TO CONFIRM RECEIPT OF DOCUMENT: ' 

OF.:PE OFFIC~::,-",:"~;..&.(1,,;;...j4 .. r""'?J""(;, ________________ _ 

~ 

A.110ITJONAL COMMENTS: 

PAGE 1 
CENTRAL AIR CONDITIONER / P COIL

SIZE RESPONONS AVERAGE

1.0 TON 10-10.99 8 $1,711

11-11.99 4 $1,768

12-12.99 5 $1,964

13+ 2 $2,211

1.5 TON 10-10.99 14 $1,978

11-11.99 7 $2,042

12-12.99 9 $2,320

13+ 3 $2,468

2.0 TON 10-10.99 20 $2,894

11-11.99 10 $2,228

12-12.99 21 $2,427

134- 7 $2,772

2.5 TON 10-10.99 20 $2,156

11-11.99 9 $2,338

12-12.99 22 $2,638

13+ 6 $2,957

3.0 TON 10-10.99 20 $2,325

11-11.99 9 $2,579

12-12.99 24 $2,848

13+ 7 $3,489

3.5 TON 10-10.99 20 $2,539

11-11.99 9 $2,772

12-12.99 23 $3,091

13+ 5 $3,462

4.0 TON 10-10.99 20 $2,794

11-11.99 9 $2,981

12-12.99 22 $3,398

134- 5 $3,968

4.5 TON 10-10.99 3 $3,500

11-11.99 3 $3,567

12-12.99 4 $3,895

13+ 2 $4,300

5.0 TON 10-10.99 20 $3,150

11-11.99 10 $3,496

12-12.99 18 $3,756

13+ 6 $4,257

-8-1 0

EE-RM-93-801 COMMENT 0KK

\ CENTRAL AIR CONDITIONER W/BVAP COIL 

1!!1~ USPONSES AVERAGE 

1.0 TON 10-10.99 8 $1,711 

11-11.99 4 $1,768 

12-12.99 5 $1,964 

13+ :2 $2,211 

1. 5 TON 10-10.99 14- $1,878 

11-11.99 7 $28 042 

12-12.99 9 $2,320 

13+ J $2,468 

2.0 TON 10-10.99 20 $2,894 

11-11. 99 10 $2,228 

12-12.99 21 $2,421 

13+ 7 $2,772 

2.5 TON 10-10.99 20 $2/156 

11-11.99 9 $2,338 

12"12.99 22 $2,638 

13+ 6 $2,957 

3.0 TON 1.0-10.99 20 $2,325 

11-11. 99 9 $2,519 

12-12.99 24 $2,848 

13+ 1 $:1,489 

3.5 TON 10-10.99 20 $2,539 

11-11.99 9 $2,772 

12-12.99 23 $3,091 

13. 5 $3,462 

4.0 TON 10,,10.99 20 $2,794 

11-11. 99 9 $2,981 

12-12.99 22 $3,398 

13+ 5 $3,968 

4.5 TON 10-10.99 3 $3,500 

11-11..99 3 $3,561 

12-12.99 4- $3,895 

13+ 2 $4,300 

5.0 TON 10-10.99 20 $3,150 

11-11.99 10 $3,496 

12-12.99 18 $3,756 

13+ 6 $4,257 
7-'B3 1; GS FROM ID: PAGE 10

CENT L AIR CONDITIONER /A HANDLER

AM BEER S* AVE G

1.0 TON 10-10.99 8 $2,228

11-11.99 4 $2,224

12-12.99 5 $2,409

13+ 2 $2,439

1.5 TON 10-10.99 13 $2,594

11-11.99 7 $2,714

12-22.99 9 $2,983

13+ 3 $2,920

2_0 TON 10-10.99 19 S2,696

11-11.99 9 $2,610

12-12.99 21 $3,239

13+ 8 $3,570

2.5 TON 10-10.99 19 $2,950

11-11.99 9 $2,911

12-12.99 21 $3,485

13+ 7 $3,672

3.0 TON 10-10.99 19 $3,137

1111.99 9 $3,169

12-12.99 22 $3,750

13+ 9 $4,424

3.5 TON 10--10.99 19 $3,472

11-11.99 9 $3,474

12°12.99 21 $4,039

13+ 7 $4,381

4_0 TON 10-10.99 19 $3,844

3.1-11.99 9 $3,700

12-12.99 20 $4,438

13+ 8 $5,173

4.5 TON 10-10.99 3 $3,767

11-11.99 3 $4,400

12-12.99 4 $4,586

13+ 2 $4,500

5.0 TON 10-10.99 19 $4,261

11-11.99 1 0 $4,421

12-12.99 15 $4,862

13+ 8 $5,444

EE-RM-93-801 COMMENT 0KK

~7-93 Is.es FROM, ID, PAGE 10 

CBNTRAL AIR CO.DrTIO~R W/AIR HANDLER 

un gg RESPONSES AVERAGE 

1.0 TON 10-10.99 a $2,228 

11-11.99 oil $2,224 

12";'12.99 5 $2,409 

13+ 2 $2,439 

1.5 TON lO-10.99 13 $2,594 

11-11.99 7 $2,714 

l2-12.99 9 $2,983 

13+ '3 $2,920 

2.0 TON 10-10.99 19 $2,696 

11-11.99 9 $2 , 610 

12-12.99 21 $3,239 

13+ 8 $3,570 

2.5 TON 10-10.99 19 $2,950 

11-11.99 9 $2,911 

12-12.99 21 $3,485 

13+ 7 $3,672 

3.0 TON 10-10.99 19 $3,137 

11-11.99 9 $3,169 

12-12.99 22 $3,750 

13+ 9 $4,424 

3.5 TON 10-10.99 19 $3,472 

1],-:11.99 9 $3,474 

12-12.99 21 $4,039 

13+ 7 $4,381 

4.0 TON 10-10.99 19 $3,944 

11-11.99 9 $3,700 

12-12.99 20 $4/438 

13+ 8 $5,173 

4.5 TON 10-10.99 :3 $3,767 

11-11.99 .3 $4.400 

12-12.99 4 $4,586 

13+ 2 $4,500 

5.0 TON 10-10.99 19 $4,261 

11-11. 99 10 $4,421 

12-12.99 15 $4,862 

13+ 8 $5,444 

-9- @ 
2

2

Chap Robmerts Air Conditioning, c.

9628N. 19th AYt:NU 1 Pt90GNtX, ARIZONA 95021-9992 / 943.7291

PBORNIX FAX 602-943-3872

MESA FAX 602-964-4782

TUCSON FAX 602292-6840

NUMBER OP PAGES (INCLUDING COVER PAGE)

FAX #

EE-RM-93-801 COMMENT 0KK

~ .. 

FROM; 

DATE: 

:2 

Chas Roberts Ai,. Conditioning, Inc. 

9S:?S N. 191h AVENue I PHOGNIX, AAIZONA $5021-19&2 I IH3.72~1 

PHOENIX FAX 602-943-3972 

MESA ~AX 602~964-4182 

TUCSON FAX 602 ... 292-6840 

NUMBER OF PAGES (INCLUDING COVER PAGE): 

:fAX i 

-------
2 P-02

------------- -------------......_----.......----------......._.. - _...- -----,:

Lawrence Berkeley Laboratory

Universit of oroi Eerkcle , Calif is .44720

L -4

and EnvironMent MUM

er Analysis Prograin

July 29, 1993

Chuck Rob

Chas A. Roberm C

(S10) 48 . 'sal t

phone conversation today regarding install oasts for various

materials to connect system up to the already installed duct work, any transportation or

shipping costs that are passed on to the consumer, and all labor. Also, please indicate whether the

ins^illed cost would be different if the system were being installed in a newly constructed borne As

opposed to replacing or a"ng to a home°s existing system.

of iesi n l air conditioning and pum systems. the systems listed below I would

- the to installed cost. I defin ° total installed cost the entire cost to the cousum r

of installing a system in their home. 'Mis includes the cost of the equipment, any miscelt eo;as

0

- Air Conditioner, 3-ton, Split System, 10 SEER (include cost of installin condenser writ

and evaporator coil: ' not include cost to install a new furnace) ... , 1 (000 '

- Air Conditioner. 5-ton, Split System, 10 SEER (include cost of instal44C^o condenser ui it

and evaporator coil; do not include cost to install a new furnace; . , .

Air Conditioner, 3-ton, Single Package System , 9.7 to 10 EER (Gs.s heating is

included in sys tern; 7817c r` UE, 100,006 Btu/hr input) ... . 2 t `l

® Air Conditioner, 5-ton, Single Parka. e System. 9.7 to 10 SEED (Gas heating is

included in system; 78% AFUE, ftfiv input) , . , . -26q :5 oo

Heat Pump, 3-ton, Split System, 0 SEER (include cost of installing outdoor unit and

indoor blower coil unit) ®, 4Zo

® Heat Pum p, 5-ton, Split System 10 SEER include cost of installing outdoor unit artd

indoor blow ,-r coil unit) Z9 50

Heat Pump, 3-ton, Single ackage System, 9.7 to 10 SEER (Gas heating is NOT

included in system) • I co

- Heat Pump, 5-ton, Single Package System, 93 to 10 SEER (Gas heating is NOT

included in system) ... q.5

As you instructed, I will giive you a call tomorrow morning at and loam to see if you will be

able to provide with any information. Thanks in advance (or your help.

Sister: ely,

Gregory Romnquist

EE-RM-93-801 COMMENT 0KK

;2 i.:1 :..~ _________ ... _ ... __ O/f ........ __ .. __ .. _ ............. " __ ... _ ... _ .. ., ...... __ .. ___ ..... _ • '" ........ _ ...... _ .. _ ........ __ • " .... * .. .. 

~~ ~~ 

H 

:~ 

. ~ 

~ ~.; 

~~:~r.: ·~I~"·~ . 

:~f~ , 'r.;"":j 

',,~::i!: : ·~.Ji;1 lI'ii l :ti:;:<-.; 

'i$,k;j 

Lawrence Berkeley Laboratory __ .. _. _~ ____ ........ _, ... __ ,.,,;;u .... l, .... jy .... ~_ .. r! .... !s,.t...,.9... .f ...... ~.J!.Q...rpia ~erkeloy. C.alifomia ~ 

Energy and Environment nh·ision 

EJaergy Anab'sis Prouam 

July 29, 1993 

CSt())4116-4000 • lfr!4S~~OOO 

Dulldir1, §lIV4000 

~'i:·:·:· 

:~if Ch1Jck Roberts ~;.:,-:;l Chas A. Robem Air Conditioning ~X:! : ~~~,~ 

-:"'~.' ~"""''l:'~'' Dev Chuck: 

i;i~~·::t~~::{~f:· i~·tgij:·:·'~Ji~iIi;(oliJ~~:~tO:~iif·Ph()ne ~()t\Versation today regarding mst'llled costs for various 

". tYPes of residential air C()nditioning and heat pump systems. For the systems lined 1>;:low I would 

Uko tho. tooU installed COSI. 1 %Un defining the total insUllle..a CO$t as me entire cost to the consum~r 

ofinsU\Uing a system in their home. This includes the cost of fr..e equipment. any miscellaneO'ls 

materials fo Connect the system up to the already inslafled dUCl work, any transportation or 

shipping cOStS that are passed on 10 the cons.umer, and all1abor. Also, please indicate whether the 

ins£alled cost would be different if the system were be:ing installed. in 1.\ newly COOStnl:ted homt ts 

opposed to replacing or e.dding to a home's eXlstin, s~stem. 

.. Air Conditioner. 3-ron. Split System, 10 SEER {include cost of instaHini.,condenser urit 

and evaporator coil; do not include cost to install a new furnace} •••• .!If 1 ~OO ~ 

" Air Conditioner. 5-ron. Split System, 10 SEER (include coSt of insrallmg condenser UJ!it 

and evaporator cOll; do not include cost to install a new furnace) .•. :'fZ400 !P 

Air COl\didoner~' 3-ton, Singl~ Pack32e System. 9.7 co 10 SEER (Gu heating is 

included in system; 78% AFUE. 100.000 BtU/hdnput) •••• If' '2115 'Ct 

• Air Cond.itioner, S·tOO, Single Package SyStem, 9.7 to 10 SEER (G~.s heating is 

included in system; 78% AFUE. 125.000 'SilVhr input) .••. I "2sq 5 !!!' 

• Heat Pump, 3~to~, Split System • .10 SEER (include coSt oi instamn~ outciOOf unit arId 

indoor blower coli unit) •• i • t; 'Zoeo ~ 

• Heat Pump, S-ton, Split Systemlb.lO SEERJinciude COSt of installing outdoor unit ar..d 

indoor blower coil unit) •.. ,..ftZ'l50-

" Heat Pump. 3·£00. Single .Package Systeml 9.7 to 10 SEER (Gas h~aiing is NOT 

included in system) ...!f I 8Gf5 ~ 

e Heat Pump, S-ron. SingleJl1ckag~ System, 9.7 to 10 SEER (Gas heating is NOT 

inc1uded in system) •••• e:s<1S ~ 

As you instructed. I will give you a call tomorrow moming at around lOam to see if VOIl will tlC 

able to provide with any infonnation. n.anks in advance for yo'ur help. 

Sincc;-ely! 

/1.- ----"?- :;? 

Gregory Ros:eoqul:5t 

i . I 

I 
1

u+• 1 1 V 11 J x All It J- .t.U V14A au -All 111;6 tAtV 1 ..1. 11 ,. VVJVUJ I UI+L

CAYCE COMPANY, INC., 2710 SourH iRRY STREET. P.O. DRAWER 3639. FLORENCE. S.C. 29502; PHONE. ( 903) 669.1816

September 10, 1993

Lawrence Berkeley Laboratory

University of California

Berkeley, California, 94720

RE: Energy knalyeia Program

Dear Gregory,

Here is the List of prices you requested, from Charlie Smith,

for your analysis.

Central Air Conditioner and Gas Furnace Combination

3-Ton Condenser and Evaporator Coil with 100,000 Btu/h

Gas Furnace

10 SEER A /C s 78% AFUE Furnace $3675. 00

11 SEER A / C * BOX AFUE Furnace $4275.00

12 SEER A/C + 90% AFUE Furnace 84675.00

13 to 14 SEER A/C (Two Speed Compreaaor) •

90% AF UE Gas Furnace $4975.00

D, 15 to 16 SEER A/C ( Variable-Speed Compressor)

947. AFUE Sea Furnace 05475.

Heat Pumps, Split Systems, 3-Ton Complete vith

Exiating Duct

Z' 1 SEER Unit $3675.

> 11 SEER Unit 04275.00

12 SEER Unit $4675. 00

13 to 14 SEER Unit (Two Speed Compressor) $4975.00

14 to 16 SEER Uni t (Variable-Speed Compressor) S5475. 00

1

EE-RM-93-801 COMMENT 0KK

... v'-

1 CAVCE COMPANY, INC.. .,.0 SOUr .. IAav $TAf€T. P.O. ORAWER 3639. RORENCE. s.c. m02; PHONE. (803) .... , ,., 

S~pt~mber 10, 1993 

Lawrence Berkeley Laboratory 

University ~£ California 

Berkeley, Cali£ornta ~4720 

Dear Gregory, 

Here 1_ the 1~st o~ prices you reque$ted, tram Charl~e Smith. 

£or your ana1ysie . 

• Central Air Conditioner 'and Gas Furnece Combination: 

3-10n Condenser and evaporator eo!l with 100.000 Btu/h 

Gas Furnace 

> 10 SEER Ale .. 78" AFUE Furnace 

)- 11 SEER AIC ... 80" AFUE Furnace 

> 12 SEER Ale .. 901(. AFUE Furnace 

). 13 to 14 SEER AIr:: (Tvo Speed Compressor) ~ 

~0X AFUE Gas Furnace 

" 15 to 16 SEER Ale (Yeriab1e-Speed Compressor) 

94% AFU€ Ga~ Furnace 

* Heat Pumps. Split Systemse 3-Ton Comp1ete with 

Existing Duct 

)r .10 SEER Unit 

:> 11 SEER Unit 

)0 12 SEER Uni.t 

> 13 to 14 SEER Unit (Two Speed Compr~asar) 

> 14 to 16 SEER Unit (Variable-Speed Compressor) 

1 

+ 

$36'15.00 

$4275.00 

$4675 .. 00 

$4975.00 

$:»4'15.00 

$36'1:5.00 

.4275.00 

$4G7~.0e 

$4975 .. 00 

$5475.00 
.e-10-93 FRI 9:51 CAYCE COMPANY INC FAX NO. 8036657622 P.03

Sao Furnace Only , Input Rating of 100 , 000 Btu/h

78% AFUE Unit $2075.00

80% AFUE Unit 028750

AFUE Unit $3475. 00

94% AFUE Unit (Variable-Speed Blower) S4075•00

If you have any queetiona concerning these prices feel free

to cell me at (603) 662-0341.

2

EE-RM-93-801 COMMENT 0KK

./-10-93 FRI 9:51 CAYCE COMPANY INC FAX NO. 8036657622 

* Gas Furnace Only. Input RBting of 100,000 Btu/b 

» 78% AFU£ Unit 

» SO" AFUE Unit. 

> 90% AFUE Un1.t. 

> 94X AFUE Unit (Variab1e-Speed Blower) 

$2075.00 

$2815.00 

$:,)47:5.00 

$4075.00 

If you have any quest.ions concerning tbese prices feel ~ree 

to call me at. (S0~) 662-0341. 

L ~ry Tr;lY Yours. 

-/~~~ ~:l1 Byrdl~ Asst. Service Manager 

2 

P.03