Heat load calculation requirements
HVAC contractors must complete a heat load calculation for every heat pump installation. This is necessary for customers to apply for the heat pump rebate in FortisBC's electricity service area.
Why do we require heat load calculations?
A heat load calculation is required to ensure the space heating system is sized appropriately for the home’s heating load, which can help customers improve their energy efficiency, help lower emissions and support high-quality installations.
Calculation options
Contractors or energy advisors can perform the heat load calculation by using either of the following options:
- The Heating, Refrigeration and Air Conditioning Institute of Canada (HRAI) Residential Heat Loss & Heat Gain technical manual in combination with the Microsoft Excel-based spreadsheets supplied with the CAN/CSA F280-12 standard.
- A software that uses the CAN/CSA F280-12 calculation methodology. Recommended options include Thermal Environment Comfort Association (TECA) Quality First software, Right-F280, and EnerGuide HOT2000 Full House Reports.
Note: A copy of the load calculation is part of the required documentation to qualify for our heat pump rebates. The load calculation must use a CSA F280-12 verified software for heat loss calculation.
HRAI and TECA heat load calculation training
HRAI and TECA both offer training courses on CAN/CSA F280-12 load calculations. HRAI offers a 4-day course in Victoria and Vancouver. TECA is currently updating its Forced Air Guidelines Course with CAN/CSA F280-12 material and will be offering it throughout BC.
Questions? We’re here to help.
If you’re unsure if your current heat load calculation methodology meets these criteria, please contact [email protected].
