Consultation on thermal energy meters
You're invited to provide comments on the proposal to begin regulating thermal energy meters (also called BTU (British thermal unit) meters and heat meters).
Thermal energy meters
Thermal energy meters measure the amount of heat energy given up or absorbed by a liquid in a heat exchange circuit (e.g. a radiator). These meters are used to measure the amount of heat energy used by a customer for the purpose of billing.
Thermal energy meters can be used with:
- gas-fired boilers
- district heating systems
- sub-metering configurations
- other systems
Thermal energy meters consist of three main parts:
- a flow sensor
- a temperature sensor pair
- a calculator
There are currently no specific requirements for thermal energy meters within the Weights and Measures Act and Regulations. While thermal energy meters are not exempt from the requirement to be approved and inspected prior to use in trade, Measurement Canada has not previously evaluated these devices.
The proposed requirements and program for the regulation of thermal energy meters would provide a framework for Measurement Canada to approve and inspect these devices.
We are seeking input from all interested Canadians, including:
- device owners who currently own thermal energy meters which are being used in trade within Canada
- industry members and associated organizations
- consumers who are billed for heating or cooling on the basis of the measurements provided by a thermal energy meter
You are invited to provide input on the following:
- trade sector review
- terms and conditions
- program outline and timetable
Trade sector review overview
In 2010, Measurement Canada completed a trade sector review in consultation with public stakeholders which focused on the steam and thermal energy sub-sectors. The recommendations of this review were as follows:
- require type approval of all thermal energy meters used in trade
- require initial inspection of all thermal energy meters used in trade
- require mandatory periodic inspections of all thermal energy meters used in trade
- exempt measuring devices used in the steam subsector from approval and inspection
- harmonize requirements with international standards, where appropriate
- develop alternative service delivery programs to have authorized service providers perform initial inspections and mandatory periodic inspections (if required)
Measurement Canada will now begin to implement these recommendations.
Terms and conditions overview
The Terms and Conditions for the Approval of Thermal Energy Meters:
- outline the design, performance, installation and use requirements for these meters
- are a temporary measure allowing Measurement Canada to refine device requirements before they are finalized in law
- are based on international standards
The terms and conditions do not include requirements for billing, invoicing and pricing since they fall outside of Measurement Canada's mandate.
Measurement Canada's program for the regulation of thermal energy meters will have three main parts:
- type approval
- initial inspection
- alternative service delivery
Each part will be introduced at different times. The program outline includes an implementation timetable and the program details.
When and where
The consultation is available online between , and .
How to participate
- Review the consultation documents:
- Provide feedback in any of the following ways:
Senior Program Officer
151 Tunney's Pasture Driveway
Ottawa, ON K1A 0C9
- Date modified: