Gas-fired Storage Water Heaters

Energy Efficiency Regulations

Regulatory Definition

Gas-fired storage water heater means a stationary gas-fired storage heated water container that

  • uses propane or natural gas for fuel;
  • has an input  of not more than 21.97 kW (75,000 Btu/h); and
  • has a storage tank capacity, Vr, of at least 76 L (20 US gallons) but not more than 380 L (100 US gallons).

Compliance Date

Products manufactured on or after December 31, 2016

List of Compliant Models

Test Standard

CSA P.3-04

Energy Efficiency Standard

Energy factor of ≥ 0.675 – 0.00039 Vr

Energy Efficiency Report Requirements

  • product name (gas-fired storage water heater);
  • brand name;
  • model number;
  • manufacturer;
  • the name of the certification body or province whose verification mark will be on the product or its package;
  • its Vr, expressed in litres;
  • its input rate, expressed in kilowatts;
  • its recovery efficiency;
  • its energy factor;
  • the fuel it uses;
  • its annual energy consumption, expressed in kilo- joules; and
  • its first hour rating, expressed in litres.

Download the energy efficiency reporting template

This document does not constitute part of the Energy Efficiency Act (Act) or its associated regulations. This document is an administrative document that is intended to facilitate compliance by the regulated party with the Act and its associated regulations. This document is not intended to provide legal advice regarding the interpretation of the Act or its associated regulations. If a regulated party has questions about their legal obligations or responsibilities under the Act or its associated regulations, they should seek the advice of legal counsel.