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

Regulations are current to 2024-04-01 and last amended on 2024-03-27. Previous Versions

PART 2Energy-Using Products (continued)

DIVISION 6Water Heaters (continued)

SUBDIVISION BGas-Fired Storage Water Heaters (continued)

Marginal note:Type

374.1 For the purpose of these Regulations, a gas-fired storage water heater is one of the following types:

  • (a) household, if it has an input rate of less than or equal to 21.97 kW (75,000 Btu/h); or

  • (b) commercial, if it is has an input rate of greater than 21.97 kW (75,000 Btu/h).

Marginal note:Energy-using product

  • 375 (1) A gas-fired storage water heater is prescribed as an energy-using product.

  • Marginal note:Limits

    (2) However, for the purposes of sections 4, 5 and 376, a gas-fired storage water heater is not considered to be an energy-using product unless

    • (a) it is a household gas-fired storage water heater that is manufactured on or after February 3, 1995; or

    • (b) it is a commercial gas-fired storage water heater that is manufactured on or after July 1, 2023.

Previous Version

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 of Table 1 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 3 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 the standard set out in column 2 of Table 2 that are applicable to a gas-fired storage water heater as defined in section 374.

    TABLE 1

    Column 1Column 2Column 3Column 4
    ItemEnergy-using ProductTesting StandardEnergy Efficiency StandardPeriod of Manufacture
    1Household gas-fired storage water heatersCSA P.3-04Energy factor of ≥ 0.67 – 0.0005 VrOn or after February 3, 1995 and before December 31, 2016
    2Household gas-fired storage water heatersCSA P.3-04Energy factor of ≥ 0.675 – 0.00039 VrOn or after December 31, 2016 and before January 1, 2018
    3Household 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
    4Household 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
    5Household 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
    6Household 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

    TABLE 2

    Column 1Column 2Column 3
    ItemEnergy-using ProductTesting StandardEnergy Efficiency Standard
    1Commercial 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)CSA P.3-15Uniform energy factor ≥ 0.8107-0.00021 Vs
    2Commercial gas-fired storage water heaters that are replacement units, 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)CSA P.3-15Uniform energy factor ≥ 0.6597-0.00024 Vs
    3Commercial gas-fired storage water heaters, other than replacement units, that have a Vr of > 530 L (140 US gallons)10 C.F.R. Appendix AThermal efficiency ≥ 90%
    4Commercial gas-fired storage water heaters that are replacement units and that have a Vr of > 530 L (140 US gallons)10 C.F.R. Appendix AThermal efficiency ≥ 80%
    5Commercial gas-fired storage water heaters, other than those described in items 1 and 3, that are not replacement units10 C.F.R. Appendix A

    Thermal efficiency ≥ 90%

    Standby loss ≤ 0.84 (1.25 Q + 16.57√Vs)

    6Commercial gas-fired storage water heaters, other than those described in items 2 and 4, that are replacement units10 C.F.R. Appendix A

    Thermal efficiency ≥ 80%

    Standby loss ≤ 1.25 Q + 16.57√Vs

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377 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 a gas-fired storage water heater described in column 1.

TABLE

Column 1Column 2Column 3
ItemEnergy-using ProductTesting StandardInformation
1Household gas-fired storage water heaters that are manufactured on or after February 3, 1995 and before January 1, 2018CSA P.3-04

  • (a) input rate, in kW (Btu/h);

  • (b) recovery efficiency;

  • (c) type of fuel used;

  • (d) annual energy consumption, in kJ;

  • (e) first-hour rating, in L;

  • (f) Vr; and

  • (g) energy factor.

2Household gas-fired storage water heaters that are manufactured on or after January 1, 2018

CSA P.3-04, if a certification body has verified that the product is in compliance with the energy efficiency standard set out in any of paragraphs 3(a), 4(a), 5(a) and 6(a) of Table 1 to section 376

CSA P.3-15, if a certification body has verified that the product is in compliance with the energy efficiency standard set out in any of paragraphs 3(b), 4(b), 5(b) and 6(b) of Table 1 to section 376

  • (a) input rate, in kW (Btu/h);

  • (b) recovery efficiency;

  • (c) type of fuel used;

  • (d) annual energy consumption, in kJ;

  • (e) first-hour rating, in L;

  • (f) Vr;

  • (g) energy factor, if a certification body has verified that the product is in compliance with the energy efficiency standard set out in any of paragraphs 3(a), 4(a), 5(a) and 6(a) of Table 1 to section 376; and

  • (h) uniform energy factor and Vs, if a certification body has verified that the product is in compliance with the energy efficiency standard set out in any of paragraphs 3(b), 4(b), 5(b) and 6(b) of Table 1 to section 376.

3Commercial gas-fired storage water heaters 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, limit water temperatures to < 82°C (180°F) and are manufactured on or after July 1, 2023CSA P.3-15

  • (a) uniform energy factor;

  • (b) Vr;

  • (c) Vs;

  • (d) input rate, in kW (Btu/h);

  • (e) type of fuel used; and

  • (f) information that indicates whether the product is a replacement unit.

4Commercial gas-fired storage water heaters with a Vr of > 530 L (140 US gallons) that are manufactured on or after July 1, 202310 C.F.R. Appendix A

  • (a) thermal efficiency;

  • (b) Vr;

  • (c) Vs;

  • (d) input rate, in kW (Btu/h);

  • (e) type of fuel used; and

  • (f) information that indicates whether the product is a replacement unit.

5Commercial gas-fired storage water heaters, other than those described in items 3 and 4, that are manufactured on or after July 1, 202310 C.F.R. Appendix A

  • (a) thermal efficiency;

  • (b) standby loss, in W;

  • (c) Vr;

  • (d) Vs;

  • (e) input rate, in kW (Btu/h);

  • (f) type of fuel used; and

  • (g) information that indicates whether the product is a replacement unit.

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SUBDIVISION COil-Fired Water Heaters

Marginal note:Definitions

378 The following definitions apply in this Subdivision.

CSA B211-00

CSA B211-00 means the CSA standard CAN/CSA-B211-00 entitled Energy Efficiency of Oil-Fired Storage Tank Water Heaters. (CSA B211-00)

oil-fired water heater

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

Previous Version

Marginal note:Type

378.1 For the purpose of these Regulations, an oil-fired water heater is one of the following types:

  • (a) household, if it has an input rate of less than or equal to 30.5 kW (105,000 Btu/h); or

  • (b) commercial, if it is has an input rate of greater than 30.5 kW (105,000 Btu/h).

Marginal note:Energy-using product

  • 379 (1) An oil-fired water heater is prescribed as an energy-using product.

  • Marginal note:Limits

    (2) However, for the purposes of sections 4, 5 and 380, an oil-fired water heater is not considered to be an energy-using product unless

    • (a) it is a household oil-fired water heater that is manufactured on or after February 3, 1995; or

    • (b) it is a commercial oil-fired water heater that is manufactured on or after January 1, 2020.

Previous Version

Marginal note:Energy efficiency standards — household

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

  • Marginal note:Testing standard — household

    (2) An oil-fired 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 oil-fired water heater as defined in section 378.

  • 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 oil-fired water heaters described in column 1 that are manufactured on or after January 1, 2020.

  • Marginal note:Testing standard — commercial

    (4) A commercial oil-fired 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 of Table 2 that are applicable to an oil-fired water heater as defined in section 378.

    TABLE 1

    Column 1Column 2Column 3Column 4
    ItemEnergy-using ProductTesting StandardEnergy Efficiency StandardPeriod of Manufacture
    1Household oil-fired water heatersCSA B211-00Energy factor of ≥ 0.59 – 0.0005 VrOn or after February 3, 1995 and before December 31, 2016
    2Household oil-fired water heatersCSA B211-00Energy factor of ≥ 0.68 – 0.0005 VrOn or after December 31, 2016 and before January 1, 2018
    3Household oil-fired water heaters that have a first-hour rating of < 68 L (18 US gallons)

    CSA B211-00 for energy factor

    CSA P.3-15 for uniform energy factor

    Must have at least one of the following:

    • (a) energy factor of ≥ 0.68 – 0.0005 Vr; or

    • (b) uniform energy factor of ≥ 0.2509 – 0.00032 Vs.

    		On or after January 1, 2018
    4Household oil-fired water heaters that have a first-hour rating of ≥ 68 L (18 US gallons) but < 193 L (51 US gallons)

    CSA B211-00 for energy factor

    CSA P.3-15 for uniform energy factor

    Must have at least one of the following:

    • (a) energy factor of ≥ 0.68 – 0.0005 Vr; or

    • (b) uniform energy factor of ≥ 0.5330 – 0.00042 Vs.

    		On or after January 1, 2018
    5Household oil-fired water heaters that have a first-hour rating of ≥ 193 L (51 US gallons) but < 284 L (75 US gallons)

    CSA B211-00 for energy factor

    CSA P.3-15 for uniform energy factor

    Must have at least one of the following:

    • (a) energy factor of ≥ 0.68 – 0.0005 Vr; or

    • (b) uniform energy factor of ≥ 0.6078 – 0.00042 Vs.

    		On or after January 1, 2018
    6Household oil-fired water heaters that have a first-hour rating of ≥ 284 L (75 US gallons)

    CSA B211-00 for energy factor

    CSA P.3-15 for uniform energy factor

    Must have at least one of the following:

    • (a) energy factor of ≥ 0.68 – 0.0005 Vr; or

    • (b) uniform energy factor of ≥ 0.6815 – 0.00037 Vs.

    		On or after January 1, 2018

    TABLE 2

    Column 1Column 2Column 3
    ItemEnergy-using ProductTesting StandardEnergy Efficiency Standard
    1Commercial oil-fired water heaters that have an input rate of > 30.5 kW (105,000 Btu/h) but ≤ 40.99 kW (140,000 Btu/h), have a Vr of ≤ 454 L (120 US gallons), use single-phase power, limit water temperatures to < 82°C (180°F) and are manufactured on or after January 1, 2020CSA P.3-15Uniform energy factor ≥ 0.6740 - 0.00035 Vs
    2Commercial oil-fired water heaters with a Vr of > 530 L (140 US gallons) that are manufactured on or after January 1, 202010 C.F.R. Appendix AThermal efficiency ≥ 80%
    3Commercial oil-fired water heaters, other than those described in items 1 and 2, that are manufactured on or after January 1, 202010 C.F.R. Appendix A

    Thermal efficiency ≥ 80%

    Standby loss ≤ 1.25 Q + 16.57√Vs

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