Heat load calculation requirements 

To qualify for our dual fuel rebates, HVAC contractors must complete a heat load calculation for the following programs:

A heat load calculation is required to ensure the space heating system is sized appropriately for the home’s heating load, which helps optimize energy-efficiency and greenhouse gas emission reductions, and to encourage high-quality installations.

While we strongly recommend you complete heat load calculations for all space heating system installations, at this time, the requirement only applies to dual fuel heating systems (electric heat pump combined with gas furnace).

Heat load calculation options

Contractors or energy advisors can perform the heat load calculation by using any of the following options:

The following will not be accepted:

  • rule-of-thumb equipment sizing
  • pre/post-upgrade EnerGuide evaluations without a HOT2000 report

Note: A copy of the load calculation is part of the required documentation to qualify for our dual fuel rebates. The load calculation can be documented by a submittal sheet from compliant software or by a load calculation worksheet from TECA, HRAI, ACCA or the CSA F280 standard.

Training courses and manuals

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.

HRAI and TECA also offer technical manuals on residential heat loss and heat gain load calculations. There are a large number of available software solutions and mobile apps that allow you to do Manual J calculations.

Questions? We’re here to help.

If you’re unsure if your current heat load calculation methodology meets these criteria, please contact [email protected].