Gas boilers - commercial
Energy Efficiency Regulations
Regulatory definition
Commercial gas boiler, a boiler that uses exclusively propane or natural gas, is intended for application in a low-pressure steam, or hot water, central heating system and has an input rate of greater than or equal to 87.92 kW (300 000 Btu/h) but not more than 2,930.71 kW (10,000,000 Btu/h).
Compliance date
Commercial gas boilers that are manufactured on or after January 1, 2025.
For models manufactured prior, refer to the Regulations.
Testing standard
10 C.F.R. Appendix A
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-using product | Requirements |
|---|---|
| Commercial gas boilers that are intended for hot water systems and have an input rate of ≥ 87.92 kW (300,000 Btu/h) but ≤ 732.68 kW (2,500,000 Btu/h) | Thermal efficiency of ≥ 90% |
| Commercial gas boilers that are intended for hot water systems and have an input rate of > 732.68 kW (2,500,000 Btu/h) but ≤ 2,930.71 kW (10,000,000 Btu/h) | Combustion efficiency of ≥ 90% |
| Commercial gas boilers that are intended for low pressure steam systems and have an input rate of ≥ 87.92 kW (300,000 Btu/h) but ≤ 732.68 kW (2,500,000 Btu/h) | Thermal efficiency ≥ 81% |
| Commercial gas boilers that are intended for low pressure steam systems and have an input rate of > 732.68 kW (2,500,000 Btu/h) but ≤ 2,930.71 kW (10,000,000 Btu/h) | Thermal efficiency ≥ 82% |
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
- whether a mathematical model as defined in the Regulations was used to generate any of the information provided below
- type of fuel used
- type of boiler system: hot water, low pressure steam, or configurable hot water/steam
- maximum heat input and output nominal capacities, in kW (Btu/h)
- annual fuel utilization efficiency
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.
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