Home » Energy efficiency » CSA F280 Heat Loss and Heat Gain Calculation
CSA F280 Heat Loss and Heat Gain Calculation
Stop guessing. Start saving. Find out exactly where your energy dollars are being lost, and how to fix it.
For
Standard
What you receive
Understanding CSA F280
Learn why heat loss and heat gain calculations matter when sizing a heat pump for your home.
What is a heat loss calculation?
At Buildingexpert, we offer precise heat loss calculations to help you take control of your building’s energy performance. Whether you’re a homeowner, contractor, or property manager, our diagnostic service reveals exactly where your energy dollars are being lost, and how to fix it.
A heat loss calculation determines how much heat escapes from your home or building through the walls, roof, windows, doors, and air leaks.
Why it matters
- Lower energy bills. Target the upgrades that matter most and reduce your monthly costs.
- Increased comfort. No more cold drafts, uneven temperatures, or chilly rooms.
- Smarter renovations. Get data-backed guidance for insulation, window replacements, HVAC sizing, and more.
- Program compliance. Our reports support grant and loan programs like MLI Select, Efficiency Manitoba, and more.
- Environmentally responsible. Cut your carbon footprint by reducing unnecessary heat loss.
F280 heat loss calculation: the industry standard
Our heat loss reports follow the CSA F280 standard, Canada’s recognized method for calculating residential heating and cooling loads.
- Accuracy you can trust. The F280 method ensures results are consistent, detailed, and compliant with building code requirements.
- HVAC right-sizing. Proper F280 calculations prevent oversized or undersized systems, helping you avoid unnecessary costs and improve long-term comfort.
- Program compliance. Many energy efficiency and financing programs (such as MLI Select or Efficiency Manitoba) require or recommend F280-compliant load calculations for eligibility.
- Professional credibility. Contractors, engineers, and energy advisors rely on F280 to deliver results that meet both industry and regulatory standards.
By combining advanced tools like blower door testing, thermal imaging, and the CSA F280 methodology, our team provides you with the most reliable foundation for smart energy upgrades.
What we deliver
- Detailed energy model of your home or building
- Thermal imaging photos of weak points
- Airtightness test (blower door) with ACH reading
- Expert recommendations based on building code and rebate programs
- Follow-up support for retrofit decisions or builder questions
Thermal imaging inspections
A thermal camera reveals temperature variations on material surfaces. It helps our team locate areas of heat loss and insulation anomalies in the building envelope. Thermal imaging complements other observations and tests; the scope of an inspection depends on site conditions.
Request a heat loss calculation
Tell us about your building and a team member will contact you.
Our other services

Home evaluation, EnerGuide rating and personalized report.

Measure the air tightness of your home or building.

Mortgage loan insurance relief for rental buildings.
Ready to see where your building loses heat?
Our energy advisors are available across seven provinces.