Energy Efficiency Regulations, 2016 (SOR/2016-311)

SUBDIVISION CElectric Boilers

Marginal note:Definition of electric boiler

323 In this Subdivision, electric boiler means a boiler that uses electric energy as a source of heat, is intended for application in a hot water central heating system, has an input rate of less than 88 kW (300,000 Btu/h) and is not equipped with tankless domestic water heating coils.

Marginal note:Energy-using product

• 324 (1) An electric boiler is prescribed as an energy-using product.

• Marginal note:Limit

  (2) However, for the purposes of sections 4, 5 and 325, an electric boiler is not considered to be an energy-using product unless it is manufactured on or after September 1, 2012.

Marginal note:Energy efficiency standard

325 The energy efficiency standard that applies to an electric boiler is that it must be equipped with an automatic water temperature adjustment device without which the boiler is not operable.

Marginal note:Information

326 For the purpose of subsection 5(1) of the Act, the following information must be provided to the Minister in respect of an electric boiler:

• (a) its input rate, expressed in kilowatts, collected in accordance with ASHRAE 103; and

• (b) the type of automatic water temperature adjustment device that it has.

[327 to 368 reserved]

DIVISION 6Water Heaters

Interpretation

Marginal note:Definitions

• 369 (1) The following definitions apply in this Division.

  CSA P.3-15

  CSA P.3-15 means the CSA standard CAN/CSA-P.3-15 entitled Testing method for measuring energy consumption and determining efficiencies of gas-fired and fuel oil-fired water heaters. (CSA P.3-15)

  electric water heater

  electric water heater means a stationary electric storage tank water heater that is intended for use on a pressurized water system and has a V_r of at least 50 L (13.21 US gallons). (chauffe-eau électrique)

  first-hour rating

  first-hour rating means, in respect of an electric water heater, gas-fired storage water heater or oil-fired water heater, the measure of the maximum volume of hot water that the water heater can supply within an hour that begins when the water in the water heater is fully heated. (capacité de première heure)

  gas-fired instantaneous water heater

  gas-fired instantaneous water heater means a flow-activated water heater that uses propane or natural gas for fuel, has a V_r that is less than or equal to 38 L (10 US gallons) and has an input rate to V_r ratio of at least 309 W/L (4,000 Btu/h/US gallon). (chauffe-eau instantané au gaz)

  gas-fired storage water heater

  gas-fired storage water heater means a stationary gas-heated water container that uses propane or natural gas for fuel and has a V_r of at least 76 L (20 US gallons). (chauffe-eau à réservoir alimenté au gaz)

  oil-fired water heater

  oil-fired water heater means a water heater that uses oil for fuel and has a V_r of at least 76 L (20 US gallons). (chauffe-eau à mazout)

  10 C.F.R. Appendix A

  10 C.F.R. Appendix A means Appendix A to Subpart G, Part 431 of Title 10 to the United States Code of Federal Regulations, entitled Uniform Test Method for the Measurement of Thermal Efficiency and Standby Loss of Gas-Fired and Oil-Fired Storage Water Heaters and Storage-Type Instantaneous Water Heaters, as amended from time to time. (appendice A 10 C.F.R.)

  10 C.F.R. Appendix E

  10 C.F.R. Appendix E means Appendix E to Subpart B, Part 430 of Title 10 to the United States Code of Federal Regulations, entitled Uniform Test Method for Measuring the Energy Consumption of Water Heaters, as amended from time to time, except for sections 5.1.1 and 5.1.2. (appendice E 10 C.F.R.)

  V_eff

  V_eff means the effective storage volume, expressed in litres, of a water heater’s storage tank, as determined in accordance with 10 C.F.R. Appendix E. (V_eff)

  V_r

  V_r means the nominal volume, expressed in litres, of a water heater’s storage tank. (V_r)

  V_s

  V_s means the measured storage volume, expressed in litres, of a water heater’s storage tank. (V_s)

• Marginal note:Interpretation — draw pattern

  (2) In this Division, a reference to

  • (a) a “very-small-usage” draw pattern is to be read as a reference to the draw pattern set out in Table III.1 to section 5.5 of 10 C.F.R. Appendix E;

  • (b) a “low-usage” draw pattern is to be read as a reference to the draw pattern set out in Table III.2 to section 5.5 of 10 C.F.R. Appendix E;

  • (c) a “medium-usage” draw pattern is to be read as a reference to the draw pattern set out in Table III.3 to section 5.5 of 10 C.F.R. Appendix E; and

  • (d) a “high-usage” draw pattern is to be read as a reference to the draw pattern set out in Table III.4 to section 5.5 of 10 C.F.R. Appendix E.

SUBDIVISION AElectric Water Heaters

Marginal note:Definitions

370 The following definitions apply in this Subdivision.

bottom inlet

bottom inlet means a cold water inlet, other than one with a dip tube, that enters near the bottom of the water heater’s storage tank. (entrée inférieure)

CSA C191-04

CSA C191-04 means the CSA standard CAN/CSA-C191-04 entitled Performance of Electric Storage Tank Water Heaters for Domestic Hot Water Service. (CSA C191-04)

electric water heater

electric water heater[Repealed, SOR/2025-110, s. 46]

10 C.F.R. Appendix B

10 C.F.R. Appendix B means Appendix B to Subpart G, Part 431 of Title 10 to the United States Code of Federal Regulations, entitled Uniform Test Method for the Measurement of Standby Loss of Electric Storage Water Heaters and Storage-Type Instantaneous Water Heaters, as amended from time to time. (appendice B 10 C.F.R.)

Marginal note:Type

370.1 For the purpose of these Regulations, an electric water heater is one of the following types:

• (a) household, if it has an input rate of less than or equal to 12 kW (40,982 Btu/h); or

• (b) commercial, if it is has an input rate of greater than 12 kW (40,982 Btu/h).

Marginal note:Energy-using product

• 371 (1) An electric water heater is prescribed as an energy-using product.

• Marginal note:Limits

  (2) However, an electric water heater is not considered to be an energy-using product

  • (a) for the purposes of sections 4 and 5, unless it is

    • (i) a household electric water heater that is manufactured on or after February 3, 1995, or

    • (ii) a commercial electric water heater that is manufactured on or after January 1, 2020; and

  • (b) for the purposes of section 372, unless it is

    • (i) a household electric water heater that is manufactured on or after February 3, 1995,

    • (ii) a commercial electric water heater that is manufactured on or after January 1, 2020, or

    • (iii) a commercial electric water heater with a V_r that is less than or equal to 530 L (140 US gallons).

Marginal note:Energy efficiency standards

• 372 (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).

  Item	Column 1	Column 2	Column 3	Column 4
  	Energy-using Product	Testing Standard	Energy Efficiency Standard	Period of Manufacture
  1	Household 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 C191-04	Standby loss, in W, ≤ 40 + 0.2 Vr	On or after February 3, 1995 and before May 6, 2029
  2	Household 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 C191-04	Standby loss, in W, ≤ 40 + 0.2 Vr	On or after May 6, 2029
  3	Household 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 C191-04	Standby loss, in W, ≤ 0.472 Vr − 33.5	On or after February 3, 1995 and before May 6, 2029
  4	Household 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 C191-04	Standby loss, in W, ≤ 35 + 0.2 Vr	On or after February 3, 1995 and before May 6, 2029
  5	Household 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 C191-04	Standby loss, in W, ≤ 35 + 0.2 Vr	On or after May 6, 2029
  6	Household 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 C191-04	Standby loss, in W, ≤ 0.472 Vr − 38.5	On or after February 3, 1995 and before May 6, 2029
  7	Household 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
  8	Household electric water heaters that have a Veff of ˃ 208 L (55 US gallons) but ≤ 454 L (120 US gallons)	10 C.F.R. Appendix E	Uniform energy factor ≥ 0.9349 − 0.000026 Veff	On or after May 6, 2029
  9	Commercial electric water heaters	10 C.F.R. Appendix B	Standby loss, in %/hr ≤ 0.3 + 102.2/Vs	On or after January 1, 2020

Marginal note:Information

373 For the purpose of subsection 5(1) of the Act, the information set out in column 3 of the table to this section must be collected in accordance with the standard set out in column 2 and provided to the Minister in respect of an electric water heater described in column 1.