Residential Water Heater

Efficiency Standards:

Life-Cycle Cost Analysis

Backup Materials

Jim Lutz

Lawrence Berkeley National Laboratory

11/9/98 LCC Analysis Backup Materials

EE-RM-97-900 COMMENT 38HH
Change in Life-Cycle Cost

Electric Water Heaters

Delta Life Cycle Cost of Heat Trap compared to Delta Life Cycle Cost of 2" Jacket Insulation Delta Life Cycle Cost of 2.5" Jacket Insulation

Analytic Baseline (1998S) compared to Analytic Baseline (1998$) compared to Analytic Baseline (1998$)

95% Benefit 5% Disadvantage 84% Benefit 16% Disadvantage 80%Benefit 20% Disadvantage

4000 _____ _.. 100% 3000 -__ 100% 2000 100%

o 3000 I 2000 1500 ~2000 C ooo C 2 02000 50%% 7 50% .. 1 000%

S 1000 jf | 7 | E 500 _ I

l o t of. o- o o o o o o ~0 0 o% . 0 _______ o.... o o. o u0 0 o o o o o o itflH0% o 0 o

00000000000 00000000000 00000000000ooooooooooo

u o ur oo o o u~ror l ou or U~0iA0 V LO U L 0 ') LOC L 0 U.0 U> LO 00U UW) U) U'0)CD U' 0 L

Delta LCC($) Delta LCC($) Delta LCC($)

Delta Life Cycle Cost of Plastic Tank compared Delta Life Cycle Cost of Tank Bottom Insulation

to Analytic Baseline (1998$) compared to Analytic Baseline (1998$)

69% Benefit 31% Disadvantage 59% Benefit 41% Disadvantage

1500 __.__ _ 100% 1500 - 100%

1000 1000 % 

500 2 50 50

0 n 0 0 0n- o0% 3 

U Delta LCC($oo )o) De L CC($)

Delta LCC($) Delta LCC($)

11/9/98 LCC Analysis Backup Materials 2

EE-RM-97-900 COMMENT 38HH
Change in Life-Cycle Costs for Electric Water Heaters

200

100

o0 0) a, C

u) E I I

1 0 -0 .. . .. .. ....................................................... .............................. ...............

_i ro

EU -2 0 0 ............... I........................... _ ................. „. " I.......................... ............ .... . ..............

-300 2

Heat Traps 2.5" insulation Insulate Tank Bottom r Median; 75%

2" Insulation Plastic Tank 2 5 %

Design Options

11/9/98 11/9/98 LCC Analysis Analysis Backup Materials Materials 3

EE-RM-97-900 COMMENT 38HH
Payback

Electric Water Heaters

Payback Period of Heat Trap con pared to Payback Period of 2" Jacket Insulation Payback Period of 2.5" Jacket Insulation

Analytic Baseline (Years) compared to Analytic Baseline (Years) compared to Analytic Baseline (Years)

82% payback = 3 years 42% payback <= 3 years 32% payback <= 3 years

6000 _ 100% 3000 - 100% 2000 _ ___..........100%

I 4000. . 2000 1500

i 50% I 50% 1000 50%

2000 E 1000 ei I^ E Q* El E 500 E

1 1 l . 0f 0 _ _ _ _ _ HINJl _ _ _ 0% 0% 

LO O-- -- " 3 aI a- c)3.) Ir. (L Ia. LO _ 0 r.) C)U F0- 0) 1,,. 0)

Years Years Years

Payback Period of Plastic Tank compared to Payback Period of Tank Bottom Insulation

Analytic Baseline (Years) compared to Analytic Baseline (Years)

12% payback <= 3 years 8% payback < 3 years

2000 100% 1500 100%

^ 1500 nIoB*

1000 50% . 50% 

a) _ e r o Na)500Xr 0 500 2 50

0 0% 0 .o qn, n.... 00% /

- CO)t/ "- 0) '-" 0 t.L 0 M' L '-- - .OIo- "' ) r

Years Years

11/9/98 LCC Analysis Backup Materials 4

EE-RM-97-900 COMMENT 38HH
Payback for Electric Water Heaters

26

2 244 ................ |..................................|............................... .. .................. ........... ..... ............. ............... ..................

2 2 ..........................................................................................................................................................................

2 0 ......... ...... ......................... .. ..... ... ....................... ........ ........... ............... ................... '....... .............. . .

18 T : : - }

ol14

So 12

o 106 

0)

> 8

(U

a 6 6 ............... ............................ ...... ..... ..................... . ........................................... - ...........

2 . . -2 ______ . 2.5%

Heat Traps 2.5" Insulation Insulate Tank Bottom I I Median; 75%

2" Insulation Plastic Tank 25%

Design Option

11/9/98 LCC Analysis Backup Materials 5

EE-RM-97-900 COMMENT 38HH
Change in Total Installed Cost

Electric Water Heaters

Delta Total Installed Cost of Heat Trap Water Delta Total Installed Cost of 2" Jacket Insulation Delta Total nstalledCostof2.5" Jacket

Heater compared to Analytic Baseline (1998$) Water Heater compared to Analytic Baseline InsulationWater Heater comparedto Analytic

(1998$) Baseline (1998$)

100000 0 0 r-ee -a-cce- 100% % 4000 -- -.. uuumuuumu 100% 3000 100%

C H 1 · ~ 80% S! |5000 5)% 200050% 2000 0% 5 2000 60%

0 SO0% O o o20%

0 " 0 0 C 0 0 0 0 0 NCO0 ( DO 'C oN Cco C

$ - - N N N Cn) Cn '

$ $

Delta Total Installed Cost of Plastic Tank Water Delta Total Installed Cost of Tank Bottom

Heater compared to Analytic Baseline (1998$) Insulation Water Heater compared to Analytic

Baseline (1998$)

2500 ,------ 100%

S 2000 . o80% o 2000 ----- 100%

1500 6- % 1500 80%

' 1000 40% 460% E 10 60% 500 0 0o 0 20% 1 00%

no% P 500 E20%

co N co N o C> N CO c o N O O I 0

·Oo -- ," ('q (~1 (~ooo~tco 0 N 0 o 0

$11/98 LC A s B p Ms 6$

11/9/98 LCC Analysis Backup Materials 6

EE-RM-97-900 COMMENT 38HH
Change in Total Installed Costs for Electric Water Heaters

280

260

240

. 220

co

o ~ 1 8 0 ................ . ................................ . ................................ . ......................... ....... ... ............... ........ .... ............ o 200 ;

CO

180 . .......

1 6 0 ..................... ........ ..........

'~ 140

4 0 .. ......... . ................ ........ .................... ...........

1202

0 .. . -

... T 97.5%

-20 , ,__ _ 2.5%

Heat Traps 2.5" Insulation Insulate Tank Bottom I I Median; 75%

2" Insulation Plastic Tank 25%

Design Option

11/9/98 LCC Analysis Backup Materials 7

EE-RM-97-900 COMMENT 38HH
Change in Operating Cost

Electric Water Heaters

Delta Operating Cost in 2003 of Heat Trap Delta Operating Cost in 2003 of 2" Jacket Delta Operating Cost in 2003 of 2.5" Jacket

compared to Analytic Baseline (1998$) Insulation compared to Analytic Baseline Insulation compared to Analytic Baseline

(1998S) (19985)

4000 __ 100%

80% * 3000 ---- __ 100% 2500 ____ 100%

3 0 L 8 000 > |>. 80% 2000 80% c * 60% s2000 .. 2 2000 Cs 2 6 00% 1500 6 0% u .. „. 1|| c 0-40% mn. " o " 0 E 40% i 40% u 1000 100% 2 2 0 00 E ^0%% 20% U 500 20%

O c 1500 I . 60%4 DO2NOO 200 . _DO'C O8%0

--- _.- - 0% 0 0% 0 .. 0%

a~ntCCCT» go c a ~ $ _ o(9 ', CO O ~ t , N ,o~ , co OC,4

$/Year $/Year $/Year

Delta Operating Cost in 2003 of Plastic Tank Delta Operating Cost in 2003 of Tank Bottom

compared to Analytic Baseline (1998$) Insulation compared to Analytic Baseline

(1998$)

2500 100%

2000 80% 2500 - 1-------__ 00%

c 1500 60% 2000 80%

S 1500 60% _

" 10 00 40% 1000

U- 50 0 2 0 % e 5 50 0

U. 500 20% 20%

0:_ - 0% 0 -_....0%

CO O N ^ C w 'IT N CS lONCOOO 0o 

$/Year $/Year

11/9/98 LCC Analysis Backup Materials 8

EE-RM-97-900 COMMENT 38HH
Change in Operating Costs for Electric Water Heaters

5 . .r.

-5

0 E . . ........ ...... ............................. .............. ................... I.. ......... ............................... .......

O =) O -1 -2 0 0 .... ..... ................. ......... -.1 ............................... .......................... ...............

(31 -25

c ii

4* -3 5 ............... ........................... ... .................... ....... ............. ............... .. ......... .........

CD C

.c -2 0 . ....... . , . ........................... . . . ........... ...................... .........

0 ' 0 o- . _97.5%

^ -3 0 ............... .............................. ................................. . ........ ... ............................ ..............

45 . . 2.5%

Heat Traps 2.5" Insulation Insulate Tank Bottom II Median; 75%

2" Insulation Plastic Tank 25%

Design Option

11/9/98 LCC Analysis Backup Materials 9

EE-RM-97-900 COMMENT 38HH
Change in Energy Consumption

Electric Water Heaters

Delta Daily Energy Consumption of Heat Trap Delta Daily Energy Consumption of 2" Jacket Delta Daily Energy Consum ption of 2.5" Jacket

Water Heater compared to Analytic Baseline Insulation Water Heater compared to Analytic Insulation Water Heater compared to Analytic

(Btu/Day) Baseline (Btu/Day) Baseline (Btu/Day)

3000 100%3000 100% 3000 100%

|2000 .>i 200 0 0 20I o o o0 oo1000 o o . o 21000 0

1000 oo goo -O

I t0000000000 N0000000000 0000000000 I 0 0 C0 (D0(0 0 0 0 0 0 0( 0 0 00o0 O O( 00

C t C (D C qC 7 D co m9' coC <D oiooT o f co O

BTU/Day BTU/Day BTU/Day

Delta Daily Energy Consumption of Plastic Tank Delta Daily Energy Consumption of Tank Bottom

Water Heater compared to Analytic Baseline Insulation Water Heater compared to Analytic

(Btu/Day) Baseline (Btu/Day)

2000 - 100% 2000 100%

e 1500 1500

S 1000 . 50% S 1 5000 50%

5g 500 E O 500 |

dIt 0 0 :_-:.-:- .... - 0% .t n0 BB |I|Mn| 0%0% co 00oo00 00oo00oo ooCo000 o00

~- _ CO ~ 0 oKoo LO u0 iO ^ ~ C O O O ~-.- _o - 8O co 0D ~oirc §0 0M 

, t ? -f7M

BTU/Day BTU/Day

11/9/98 LCC Analysis Backup Materials 10

EE-RM-97-900 COMMENT 38HH
Change in Daily Energy Consumption for Electric Water Heaters

500

> , ^ -5 0 0 ....... ......... ............................. .............................. ............................ ........................ ............

8 ?l -2 0 0 0 .............. ................... ......... .............. .. ......... .................. -.......

a, o -500

m r

- -1000

.- E

E ~ - 1 5 0 0 .............. ................................................. . .... ...........

c 0

a)

C

-3000

-3500

O . . . 1 97.5%

-4000 ,__ 2.5%

Heat Traps 2.5" Insulation Insulate Tank Bottom I I Median; 75%

2" Insulation Plastic Tank 25%

Design Option

11/9/98 LCC Analysis Backup Materials 11

EE-RM-97-900 COMMENT 38HH
Change in Life-Cycle Cost

Gas-fired Water Heaters

Delta Life Cycle Cost of Heat Trap compared to Delta Life Cycle Cost of 2" Jacket Insulation Delta Life Cycle Cost of 2.5" Jacket Insulation

Analytic Baseline (1998$) compared to Analytic Baseline (1998$) compared to Analytic Baseline (1998$)

96% Benefit 4% Disadvantage 98% Benefit 2% Disadvantage 94% Benefit 6% Disadvantage

10000 ... 100% 8000 - - - - - 100% 00 8000 100%

r,,,,5o"~~~~ .6000 I 6000

5000 - 50% 4000 50% 4000 50%

I . 1 111 iiE cr 2000 |r 2000

... t 0i III o

0% " o t o .... ++. 0% t 00 . 0%

oooooooooo 0 > _____ C)_ C)__ C)_ CD __ CD__ 0D ooooooOooo O ) >0, oooooo ' C 100% oooo 0 o )0U ) U0U) C , o 0 o U)O L ) U) 1 U) o U o o U) U0 o) O o ~ cn C? T co'r M t cp^ cn s e q Icn .^9 .t n( to q C? T s 

Delta LCC($) Delta LCC($) Delta LCC($)

Delta Life Cycle Cost of Side-Arm Design (w/ Delta Life Cycle Cost of Improved Flue Baffle

Metal Tank) compared to Analytic Baseline compared to Analytic Baseline (1998$)

(1998$) 22% Benefit 78% Disadvantage

55% Benefit 45% Disadvantage

8000 100%

. 3000 _________ 100% o5 6000- o

C 2000 4000 4000 50% 

|J 1000 .50% D , g2000 E _- 0 . .

ll . i O 0% 3 ( 0 t 0 o0 ,-I" .I"I,- % I 0% 

0 LO 0 u 0 u 0 o 00 o o o 0 o O 1C N N U) O U) 0U) 0 U) O cn <° t N N t c I C?

Delta LCC($) Delta LCC($)

11/9/98 LCC Analysis Backup Materials 12

EE-RM-97-900 COMMENT 38HH
Change in Life-Cycle Cost for Gas-Fired Water Heaters

300

2 20000 0 0 ............... 1...............................1............................... ............................... .. ...... ........................ ...............

. -

:8

-30 o C 

' ' 1 0 0 ....... | ........ ..................... ........ ............................... |................................... r( >

o2 --200 2 0 0 ........... ................................................................................................. ............................. ............ Oc r

T 97.5%

2.5%

-300 _____ _ , 

Heat Traps 2.5" Insulation Improve Flue Baffle I Median; 75%

2" Insulation Side Arm Heater 25%

Design Option

11/9/98 LCC Analysis Backup Materials 13

EE-RM-97-900 COMMENT 38HH
Payback

Gas-fired Water Heaters

Payback Period of Heat Trap corn pared to Payback Period of 2" Jacket Insulation Payback Period of 2.5" Jacket Insulation

Analytic Baseline (Years) compared to Analytic Baseline (Years) compared to Analytic Baseline (Years)

95% payback <= 3 years 83% payback <= 3 years 59% payback <= 3 years

8000 .1% 6000 ---- 100% 4000 100%

S. 6000 / 4000 . 3000

e 4000 50% S 50% - 2000 _ 50%

i 2000 200O 1000

0 .. 0% ...it 0 O....... % 0

"- . O) X'L1- e- ,,,- _'3 - or - 0

Years Years Years

Payback Period of Side-Arm Design (w/ Metal Payback Period of Improved Flue Baffle

Tank) compared to Analytic Baseline (Years) compared to Analytic Baseline (Years)

3% payback <= 3 years 0% payback <= 3 years

2000 ....-- __ 100% 2100%

S 1500 > 1500

1000 , 50% 1000 50%

G 500 I 500

0 a0% a- o0% . u · U r- M o ') L 0 10 Ir- .0c' ) )

Years Years

11/9/98 LCC Analysis Backup Materials 14

EE-RM-97-900 COMMENT 38HH
Payback for Gas-Fired Water Heaters

18

16 .............. .................................. .... ............................ .. ................................. ........................................ .................

.

10

CU

Cu 6

2 ........................--.............................................

- 2°0 .. .. ... . ................................... .................................. ................................. .................................. ................ 2 .

.1 5% 97.5%

2.5%

-2 ______,_____._____. M 2.5% i 7

Heat Traps 2.5" Insulation Improved Flue Baffle I I Median; 75%

2" Insulation Side Arm Heater 25%

Design Option

11/9/98 LCC Analysis Backup Materials 15

EE-RM-97-900 COMMENT 38HH
Change in Total Installed Cost

Gas-fired Water Heaters

Delta Total Installed Cost of Heat Trap Water Delta Total Installed Cost of 2" Jacket Insulation Delta Total Installed Cost of 2.5" Jacket

Heater compared to Analytic Baseline (1998$) Water Heater compared to Analytic Baseline Insulation Water Heater compared to Analytic

(1998$) Baseline (1998$)

15000 . -.-- -.-..-..-.-..- 100% 8000 .- -- 100% 6000 __ 100%

80% 0 80%

U 10000 ." 6 0 00 4000 60%60

40% I 50% 44000 0

5000 50% I' 12000I I 2000 | i 5000 - :2000 20% 2000 o: 40% E

~~0 u U U20 %O~20% 

0 00 0 0 .00000000 0 00 0%0

0 0 0 0 0 0D0 C 0 C C0 0C CD C D C LO 1)0 0 a 0 0 0 0 aO ooooooooo O oo 00 ooooooo O ) U) ooooO g ) g LO 0 Lo 0 

- - N C CO, M 'IT ' - -n CM - C - t N 1 N CO0 ' wt

$ $ $

. . _ _..____. __ _ ______ _ _______ __. ..

Delta Total Installed Cost of Side-Arm Heater Delta Total Installed Cost of Improved Rue

Water Heater compared to Analytic Baseline Baffle Water Heater compared to Analytic

(1998$) Baseline (1998$)

1500 -- 100% 8000 ***** 100%

80%

c 1000 6000 0% § 60% % I o) o o o v

o o ooo o 0/ | 50- | N 1 ) n 40% g 4000 11') U g 8 g 6 cr0 500 E40%

o_,-: : ,_. _ .. . . .. .. ... . 20% I

oooooooooo 0s 1- 0 0 0 0 0 0%

to v- 0 4 LO to'0 0 W It

$

11/9/98 LCC Analysis Backup Materials 16

EE-RM-97-900 COMMENT 38HH
Change in Total Installed Costs for Gas-Fired Water Heaters

550

50 0 . ....... ....

450

0o O 400

'- 350

a E 300

1 0: ; :

Co ;

-50

200 1 .

Co U)150

t- U ;i: i -

u 0o 0 ......... ................... .............. .................... . ........................................ 9 97.5% 7.......... 5..~ 

2.5%

-50 , _ 

Heat Traps 2.5" Insulation Improved Flue Baffle l Median; 75%

2" Insulation Side Arm Heater 25%

Design Option

11/9/98 LCC Analysis Backup Materials 17

EE-RM-97-900 COMMENT 38HH
Change in Operating Cost

Gas-fired Water Heaters

Delta Operating Cost in 2003 of Heat Trap Delta Operating Cost in 2003 of 2" Jacket Delta Operating Cost in 2003 of 2.5" Jacket

compared to Analytic Baseline (1998$) Insulation compared to Analytic Baseline Insulation compared to Analytic Baseline

(1998$) (1998$)

6000 100%

5000 80% 5000 . __ _____ _ 100% 4000 ---. -... ___ 100%

'0 4000 0 4000 80% 3000 80

§ 3000 , | 3000 60% ' 5| 60% '

c 2000 4 0 ~~~~~2000 6 U '5 E 0% ' ' 2000 4 j 60% w O'2000 | .. 80% |

- 1000 20% U , 1000 20% 3 00 20%

0 N r wD co = ; 0% 0 . A D. .*. .. .. 0% , 0 .*****.*N***«-.0 N. O0% 

S/Year S/Year S/Year

Delta Operating Cost in 2003 of Side-Arm Delta Operating Cost In 2003 of Improved Rue

Heater compared to Analytic Baseline (1998$) Baffle compared to Analytic Baseline (1998$)

25 ' ° ° - % 4000_ 0 100%

2000 .80% , 80% *

S1500 6(/O 60%

oo 

100 0 [40% 200 i 40% 0

. 500 20% U gE 1000 20% 3

$o_ : c c $ N I 0% o ..........$ q FI O 0%

S/Year S/ ear

/998 LCC Analysis Backup Materials 18

1 1/9/98 LCC Analysis Backup Materials 18

EE-RM-97-900 COMMENT 38HH
Change in Operating Costs for Gas-Fired Water Heaters

10

0. i .

u -30

oh E -20

c8

.c -3 0 .......... . ..................................... ................................ ......................... ........ .... ............ a)

0 .

O" -50

T~ 97.5% Q. =3 :2.5% ;~: 

HeatTraps 25" Insulation Improve Flue Baffle Media 75%

2" Insulation Side Arm Heater 25%

Design Options

11/9/98 LCC Analysis Backup Materials 19

EE-RM-97-900 COMMENT 38HH
Change in Energy Consumption

Gas-fired Water Heaters

Delta Daily Energy Cons umption of Heat Trap Delta Daily Energy Consumption of2"Jacket Energy Delta of Daily Jacket Consumption 2.5" 

Water Heater compared to Analytic Baseline nhsulation Water Heater compared to Analytic hsulation Water Heater compared to Analytic

(Btu/Day) Baseline (Btu/Day) Baseline (Btu/Day)

1000 ....... . 100% o 5000 _ -. 100% * 5000 .- 100%

S 800 80%.2 4000 80% . u4000 80%

600 60% c, 3000 60% a 3000 60%

400 40% 2000 40% 200040%

0000000000 0000000000 0000000000

200 .| 20% 10 20 1000 20% ,

L O _0% O U. % U 0 0% 0

0 ( a 0 N CDI 0 0 O 0 0 O C 0 0 Q N a 01 O O C O 0 O CD O ONW 8 N Co C 8 CON °C O t N O CD8 O NC0 O Co N MCO Do N COD I

I N n : -N--i WTu 'CD '7,T -ND ' " C 0) toT' N N 0 , N N , c 0 N

BTU/Day BTU/Day BTU/Day

Delta Daily Energy Cons umption of Side-Arm Delta Daily Energy Consumption of Improved

Design (w/Metal Tank) Water Heater Flue Baffle Water Heater compared to Analytic

compared to Analytic Baseline (Btu/Day) Baseline (Btu/Day)

3000 - - 100% * 4000 100% , 80% 3000 80 > 2000 e6% 300 0% = 2000

1 1000 40% § 40% g~iooo~ - 4~20% , 1000 20% ___0% 0 U *% IL) IL. 0 *** ^**r* 8 ^ 111 r . U|" i 0%u u (00^0%

O°°O° N0 °°°°°0 o oo O 0 0 0 

0Co Coa) < N I N C N $ I q N0 wi OD N 0 , O '-N w OIO) 0C (0 C r0O>OCD _'D 

BTU/Day BTU/Day

11/9/98 LCC Analysis Backup Materials 20

EE-RM-97-900 COMMENT 38HH
Change in Daily Energy Consumption for Gas-Fired Water Heaters

2000

,, -2000............

<"|X -6000 2 ........ .

. - 0 0 0 ............. .......................... .....................

E 3

u) -10000

0o

O ,, -12000 ... ..

' | -1 8 0 0 0 .............. .......................... ............................................... ...................... .........

C >

c -18000

n -1 0 0 0 0 .............. I............... I ........................... I................................. . . ..................... | ..........

-C

0 

c

2.5%

-22000 _____ ,. , 

Heat Traps 2.5" Insulation Improve Flue Baffle lI Median; 75%

2" Insulation Side Arm Heater 25%

Design Options

11/9/98 LCC Analysis Backup Materials 21

EE-RM-97-900 COMMENT 38HH
Average Daily Hot Water Use

Households by Water Heater Fuel Type

140

120 ....

100

>' 80

0 60

400 ........................................................................................................

~~~20 . . .. ~~. .::~ .I97.5%

2.5%

0 . _ _ _ _ _ _ _ _ _ _ I I Median; 75%

Gas-fired Electric 25%

11/9/98 LCC Analysis Backup Materials 22

EE-RM-97-900 COMMENT 38HH
Incremental Manufacturer Cost

Electric Water Heaters

Design 30 gallon 40 gallon 50 gallon 65 gallon 80 gallon

Option (typical)

Existing GAMA Level GAMA Level 1 Level GAMA Level GAMA 1 1 GAMA Level 1

Baseline - tank size - tank size + tank size + tank size

Analytic GAMA Level 1 GAMA ve Level GAMA GAMA Leel 1 Level GAMA Lev 1 1

Baseline - tank size - tank size + HFC 245fa + tank size + tank size

+ HFC 245fa + HFC 245fa + HFC 245fa + HFC 245fa

Heat Traps GAMA Level 2 - GAMA evel 1

2" Jacket GAMA Level 3 GAMA Level 3 GAMA Level 3 GAMA Level 3 GAMA Level 3

Insulation - GAMA Level 1 - GAMA Level 1 - GAMA Level 1 - GAMA Level 1 - GAMA Level 1

- tank size - tank size + HFC 245fa + tank size + tank size

+ HFC 245fa + HFC 245fa + HFC 245fa + HFC 245fa

2.5" Jacket Scale from 2" Scale from 2" Scale from 2" Scale from 2" Scale from 2" Insulation

Plastic Tank Plastic Tank (Minniear)

Insulate I~~ n s u l~ a t~ e GAMA Level 6 - GAMA Level 1 Tank

11/9/98 LCC Analysis Backup Materials 23

EE-RM-97-900 COMMENT 38HH
Incremental Manufacturer Cost

Gas-fired Water Heater

Design 30 gallon 40 gallon 50 gallon 75 gallon

Option (typical)

Existing GM LeGAMA Level 1 GAMA Level Level GAMA GAMA Level 1

Baseline - tank size - tank size + tank size

Analytic GAMA Level 1 GAMA Level 1 GAMA Level 1 GAMA Level 1

Baseline - tank size - tank size + HFC 245fa + tank size

+ HFC 245fa + HFC 245fa + HFC 245fa

Heat Traps GAMA Level 2 - GAMA Level 1

2" Jacket GAMA Level 3 GAMA Level 3 GAMA Level 3 GAMA Level 3

Insulation - GAMA Level 1 - GAMA Level 1 - GAMA Level 1 - GAMA Level 1

- tank size - tank size + HFC 245fa + tank size

+ HFC 245fa + HFC 245fa + HFC 245fa

2.5" Jacket 2.5" Jacet Scale from 2" Scale from 2" Scale from 2" Scale from 2" Insulation

~Sid~e Arm ~Side Arm Heater (Minniear) Heater

Electronic _

nectron (ic GAMA Level 6 - GAMA Level 1 Ignition (IID)

Improved Improved GAMA Level 5 - GAMA Level 1

Flue Baffle

11/9/98 LCC Analysis Backup Materials 24

EE-RM-97-900 COMMENT 38HH