Energy Efficiency Regulations, 2016

Marginal note:Energy-efficiency standards — household

• 376 (1) The energy efficiency standards set out in column 3 of Table 1 to this section apply to household gas-fired storage water heaters described in column 1 that are manufactured during the periods set out in column 4.

• Marginal note:Testing standard — household

  (2) A household gas-fired storage water heater complies with the energy efficiency standard if it meets that standard when tested in accordance with testing procedures established by the standard set out in column 2 that are applicable to a gas-fired storage water heater as defined in section 374.

• Marginal note:Energy efficiency standards — commercial

  (3) The energy efficiency standards set out in column 2 of Table 2 to this section apply to commercial gas-fired storage water heaters described in column 1 that are manufactured on or after July 1, 2023.

• Marginal note:Testing standard — commercial

  (4) A commercial gas-fired storage water heater complies with the energy efficiency standard if it meets that standard when tested in accordance with testing procedures established by 10 C.F.R. Appendix A that are applicable to a gas-fired storage water heater as defined in section 374.

  	Column 1	Column 2	Column 3	Column 4
  Item	Energy-using Product	Standard	Energy Efficiency Standard	Period of Manufacture
  1	Household gas-fired storage water heaters	CSA P.3-04	Energy factor of ≥ 0.67 – 0.0005 Vr	On or after February 3, 1995 and before December 31, 2016
  2	Household gas-fired storage water heaters	CSA P.3-04	Energy factor of ≥ 0.675 – 0.00039 Vr	On or after December 31, 2016 and before January 1, 2018
  3	Household gas-fired storage water heaters that have a first-hour rating of < 68 L (18 US gallons)	CSA P.3-04 for energy factor CSA P.3-15 for uniform energy factor	Must have at least one of the following: (a) energy factor of ≥ 0.675 – 0.00039 Vr; or (b) uniform energy factor of ≥ 0.3456 –0.00053 Vs	On or after January 1, 2018
  4	Household gas-fired storage water heaters that have a first-hour rating of ≥ 68 L (18 US gallons) but < 193 L (51 US gallons)	CSA P.3-04 for energy factor CSA P.3-15 for uniform energy factor	Must have at least one of the following: (a) energy factor of ≥ 0.675 – 0.00039 Vr; or (b) uniform energy factor of ≥ 0.5982 – 0.00050 Vs.	On or after January 1, 2018
  5	Household gas-fired storage water heaters that have a first-hour rating of ≥ 193 L (51 US gallons) but < 284 L (75 US gallons)	CSA P.3-04 for energy factor CSA P.3-15 for uniform energy factor	Must have at least one of the following: (a) energy factor of ≥ 0.675 – 0.00039 Vr; or (b) uniform energy factor of ≥ 0.6483 – 0.00045 Vs.	On or after January 1, 2018
  6	Household gas-fired storage water heaters that have a first-hour rating of > 284 L (75 US gallons)	CSA P.3-04 for energy factor CSA P.3-15 for uniform energy factor	Must have at least one of the following: (a) energy factor of ≥ 0.675 – 0.00039 Vr; or (b) uniform energy factor of ≥ 0.692 – 0.00034 Vs.	On or after January 1, 2018

  Item	Column 1	Column 2
  	Energy-using Product	Energy Efficiency Standard
  1	Commercial gas-fired storage water heaters, other than replacement units, that have an input rate of > 21.97 kW (75,000 Btu/h) but ≤ 30.5 kW (105,000 Btu/h), have a Vr of ≤ 454 L (120 US gallons), use single-phase power and limit water temperatures to < 82°C (180°F)	Uniform energy factor ≥ 0.8107-0.00021 Vs
  2	Commercial gas-fired storage water heaters that are replacement units, that have an input rate of > 21.97 kW (75,000 Btu/h) but≤ 30.5 kW (105,000 Btu/h), have a Vr of ≤ 454 L (120 US gallons), use single-phase power and limit water temperatures to < 82°C (180°F)	Uniform energy factor ≥ 0.6597-0.00024 Vs
  3	Commercial gas-fired storage water heaters, other than those described in items 1 and 2, that are not replacement units	Thermal efficiency ≥ 90% Standby loss ≤ 0.84(Q/0.234 + 16.57√Vs)
  4	Commercial gas-fired storage water heaters, other than those described in items 1 and 2, that are replacement units	Thermal efficiency ≥ 80% Standby loss ≤ Q/0.234 + 16.57√Vs