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[email protected] 58plumbers@gmail.com is offline
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Default Quick basic advice on a dripping gas 40-gal hot-water heater

Sears 33154 (marketed as Kenmore but made by AO Smith) FHR=97 EF=0.63
(41,045 btu/0.63)($1.21106/therm * 1 therm/100,000 btu) x 365 = $288/year

Home Depot 183-717 (marketed as GE but made by Rheem) FHR=80 EF=0.58
(41,045 btu/0.58)($1.21106/therm * 1 therm/100,000 btu) x 365 = $313/year


I read the article you referenced at
http://www.waterheaterrescue.com/pag...intenance.html

It doesn't say WHERE the 41,045 BTU number cames from.

What is this "magic" number of 41,045 BTU?