Gas Boilers

Energy Efficiency Regulations

Regulatory definition

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

Regulatory name

Gas boiler

Test standards

CSA P.2-07

Compliance date

September 1, 2010
September 1, 2012 for meeting prescriptive requirement of an automatic means for adjusting water temperature.

EnerGuide label

Not required

EnerGuide directory

List of models available

Energy efficiency standard

Residential Boiler Energy Performance Standard
Boiler Type September 1, 2010 September 1, 2012
Minimum AFUE Prescriptive Requirements Prescriptive Requirements
Gas hot water = 82% No constant burning pilot Automatic means for adjusting water temperature
Gas hot water equipped with tankless domestic water heating coils = 82% No constant burning pilot n/a
Gas steam = 80% No constant burning pilot n/a

Reporting Requirements as listed in Schedule IV of the Regulations

  • type of product
  • brand name
  • model number
  • manufacturer
  • name of the certification body that carried out the verification and authorized the verification mark that will appear on the product
  • type of fuel used by the product (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

And for gas boilers manufactured on or after September 1, 2012:

  • whether equipped with tankless domestic water heating coils
  • type of automatic water temperature adjustment device the product uses, if any