Gas boilers

Energy Efficiency Regulations

Regulatory definition

Gas boiler, a boiler that uses propane or natural gas, that is intended for application in a low pressure steam, or hot water, central heating system and has an input rate of less than 88 kW (300 000 Btu/h)

Compliance date

Manufactured on or after September 1, 2012 for meeting prescriptive requirement of an automatic means for adjusting water temperature.

Compliant product models

Gas boilers as listed on NRCan’s searchable database

Testing standard

CSA P.2-07

Energy efficiency regulations by province

Some provinces also have their own energy efficiency regulations for many of the federally regulated products – find out which ones!

Energy efficiency standard

Energy performance standard for gas boilers
Product type
Minimum AFUE Prescriptive requirements
Gas hot water = 82% Automatic means for adjusting water temperature
Gas hot water equipped with tankless domestic water heating coils = 82% n/a
Gas steam = 80% n/a
AFUE = Annual Fuel Utilization Efficiency

Energy efficiency report requirements

  • name of product
  • brand name
  • model number
  • manufacturer
  • name of the certification body or province whose verification mark will be on the product or its package
  • fuel type: propane or natural gas
  • type of boiler system: low pressure steam or hot water
  • maximum heat input and output nominal capacities, in kW
  • power burner motor's consumption (PE), in kW
  • water pump electrical energy input rate (BE), in kW
  • average annual electrical energy consumption (EAE), in kWh
  • annual fuel utilization efficiency
  • whether equipped with tankless domestic water heating coils
  • type of automatic water temperature adjustment device the product uses, if any

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.