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Energy Efficiency Regulations, 2016

Version of section 372 from 2025-10-09 to 2026-01-19:


Marginal note:Energy efficiency standards

  •  (1) The energy efficiency standards set out in column 3 of the table to this section apply to an electric water heater described in column 1 that is manufactured during the periods set out in column 4.

  • Marginal note:Testing standard

    (2) An electric water heater described in column 1 complies with the energy efficiency standard set out in column 3 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 an electric water heater as defined in subsection 369(1).

    TABLE

    ItemColumn 1Column 2Column 3Column 4
    Energy-using ProductTesting StandardEnergy Efficiency StandardPeriod of Manufacture
    1Household electric water heaters that have a bottom inlet and a Vr of ≥ 50 L (13.2 US gallons) but ≤ 270 L (71.3 US gallons)CSA C191-04Standby loss, in W, ≤ 40 + 0.2 VrOn or after February 3, 1995 and before May 6, 2029
    2Household electric water heaters that have a bottom inlet and a Vr of ≥ 50 L (13.2 US gallons) but < 76 L (20 US gallons)CSA C191-04Standby loss, in W, ≤ 40 + 0.2 VrOn or after May 6, 2029
    3Household electric water heaters that have a bottom inlet and a Vr of > 270 L (71.3 US gallons) but ≤ 454 L (120 US gallons)CSA C191-04Standby loss, in W, ≤ 0.472 Vr − 33.5On or after February 3, 1995 and before May 6, 2029
    4Household electric water heaters that have a top inlet and a Vr of ≥ 50 L (13.2 US gallons) but ≤ 270 L (71.3 US gallons)CSA C191-04Standby loss, in W, ≤ 35 + 0.2 VrOn or after February 3, 1995 and before May 6, 2029
    5Household electric water heaters that have a top inlet and a Vr of ≥ 50 L (13.2 US gallons) but < 76 L (20 US gallons)CSA C191-04Standby loss, in W, ≤ 35 + 0.2 VrOn or after May 6, 2029
    6Household electric water heaters that have a top inlet and a Vr of > 270 L (71.3 US gallons) but ≤ 454 L (120 US gallons)CSA C191-04Standby loss, in W, ≤ 0.472 Vr − 38.5On or after February 3, 1995 and before May 6, 2029
    7Household electric water heaters that have a Veff of ≥ 76 L (20 US gallons) but ≤ 208 L (55 US gallons)10 C.F.R. Appendix E

    Must have at least one of the following:

    • (a) uniform energy factor of ≥ 0.8808 − 0.000211 Veff, if draw pattern is very-small-usage;

    • (b) uniform energy factor of ≥ 0.9254 − 0.000079 Veff, if draw pattern is low-usage;

    • (c) uniform energy factor ≥ 0.9307 − 0.000053 Veff, if draw pattern is medium-usage; or

    • (d) uniform energy factor ≥ 0.9349 − 0.000026 Veff, if draw pattern is high-usage.

    On or after May 6, 2029
    8Household electric water heaters that have a Veff of ˃ 208 L (55 US gallons) but ≤ 454 L (120 US gallons)10 C.F.R. Appendix EUniform energy factor ≥ 0.9349 − 0.000026 VeffOn or after May 6, 2029
    9Commercial electric water heaters10 C.F.R. Appendix BStandby loss, in %/hr ≤ 0.3 + 102.2/VsOn or after January 1, 2020
  • SOR/2019-164, s. 28
  • SOR/2022-265, s. 47
  • SOR/2025-110, s. 47

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