7.5 : Efficiency Standards for Residential Appliances




7.5.3 Efficiency Standards for Residential Water Heaters (1)
Effective for products manufactured from January 20, 2004 through April 15, 2015
Gas-Fired Storage Water Heaters Oil-Fired Water Heaters
EF = 0.67 - (0.0019 x Rated Storage Volume in gallons) EF = 0.59 - (0.0019 x Rated Storage Volume in gallons)
Instantaneous Gas-Fired Water Heaters Instantaneous Electric and Table Top Water Heaters
EF = 0.62 - (0.0019 x Rated Storage Volume in gallons) EF = 0.93 - (0.00132 x Rated Storage Volume in gallons)
Electric Storage Water Heaters
EF = 0.97 - (0.00132 x Rated Storage Volume in gallons)
Effective for products manufactured on or after April 16, 2015
Gas-Fired Storage Water Heaters
Rated Storage Volume ≤ 55 gallons EF = 0.675 - (0.0015 x Rated Storage Volume in gallons)
Rated Storage Volume > 55 gallons EF = 0.8012 - (0.00078 x Rated Storage Volume in gallons)
Electric Storage Water Heaters
Rated Storage Volume ≤ 55 gallons EF = 0.960 - (0.0003 x Rated Storage Volume in gallons)
Rated Storage Volume > 55 gallons EF = 2.057 - (0.00113 x Rated Storage Volume in gallons)
Instantaneous Water Heaters
Gas-Fired EF = 0.82 - (0.0019 x Rated Storage Volume in gallons)
Electric EF = 0.93 - (0.00132 x Rated Storage Volume in gallons)
Oil-Fired Storage Water Heaters Table Top Water Heaters
EF = 0.68 - (0.0019 x Rated Storage Volume in gallons) EF = 0.93 - (0.00132 x Rated Storage Volume in gallons)
Note(s): 1) EF stands for "Energy Factor," while the Rated Storage Volume is a measure of capacity specified by the manufacturer.
Source(s): Title 10, Code of Federal Regulations, Part 430 - Energy Conservation Program for Consumer Products, Subpart C - Energy and Water Conservation Standards and Their Effective Dates. January 1, 2010; Energy Conservation standards for Residential Water Heaters, Direct Heating Equipment, and Pool Heaters: Final Rule, Federal Register, 75 FR 20112, April 16, 2010.









DOWNLOAD TABLE AS PDF XLS


Related Tables:

PDFXLS



PDFXLS



PDFXLS



PDFXLS





Sources:

Title 10, Code of Federal Regulations, Part 430 - Energy Conservation Program for Consumer Products, Subpart C - Energy and Water Conservation Standards and Their Effective Dates. January 1, 2010

Energy Conservation standards for Residential Water Heaters, Direct Heating Equipment, and Pool Heaters: Final Rule, Federal Register, 75 FR 20112, April 16, 2010