Calculator › Heat pump sizing city by city Heat pump sizing city by city Updated October 24, 2026
Design temperature, typical home heating load and recommended Kanartic system for 33 Canadian cities.
Quebec City Winter Summer Bungalow 1,100 sq ft* System Montreal -23 °C 30 °C 22,100 BTU/h Z-PRO 27,000 · 2 zones Laval -23 °C 30 °C 22,100 BTU/h Z-PRO 27,000 · 2 zones Longueuil -23 °C 30 °C 22,100 BTU/h Z-PRO 27,000 · 2 zones Quebec City -26 °C 28 °C 23,600 BTU/h Z-PRO 27,000 · 2 zones Gatineau -24 °C 30 °C 22,600 BTU/h Z-PRO 27,000 · 2 zones Sherbrooke -26 °C 29 °C 23,600 BTU/h Z-PRO 27,000 · 2 zones Trois-Rivières -25 °C 28 °C 23,100 BTU/h Z-PRO 27,000 · 2 zones Saguenay -29 °C 28 °C 25,000 BTU/h Z-PRO 27,000 · 2 zones
Ontario City Winter Summer Bungalow 1,100 sq ft* System Toronto -18 °C 32 °C 19,800 BTU/h Z-PRO 27,000 · 2 zones Ottawa -24 °C 30 °C 22,600 BTU/h Z-PRO 27,000 · 2 zones Hamilton -16 °C 31 °C 18,800 BTU/h Z-PRO 27,000 · 2 zones London -18 °C 30 °C 19,800 BTU/h Z-PRO 27,000 · 2 zones Kingston -22 °C 30 °C 21,700 BTU/h Z-PRO 27,000 · 2 zones Sudbury -28 °C 29 °C 24,500 BTU/h Z-PRO 27,000 · 2 zones Thunder Bay -29 °C 29 °C 25,000 BTU/h Z-PRO 27,000 · 2 zones
Alberta City Winter Summer Bungalow 1,100 sq ft* System Calgary -30 °C 29 °C 25,500 BTU/h Z-PRO 27,000 · 2 zones Edmonton -32 °C 27 °C 26,400 BTU/h Z-PRO 27,000 · 2 zones
British Columbia City Winter Summer Bungalow 1,100 sq ft* System Vancouver -7 °C 28 °C 16,500 BTU/h Z-PRO 18,000 · 2 zones Victoria -4 °C 24 °C 16,500 BTU/h Z-PRO 18,000 · 2 zones Kelowna -17 °C 33 °C 19,300 BTU/h Z-PRO 27,000 · 2 zones Prince George -32 °C 28 °C 26,400 BTU/h Z-PRO 27,000 · 2 zones
Manitoba City Winter Summer Bungalow 1,100 sq ft* System Winnipeg -31 °C 30 °C 25,900 BTU/h Z-PRO 27,000 · 2 zones Brandon -32 °C 29 °C 26,400 BTU/h Z-PRO 27,000 · 2 zones
Saskatchewan City Winter Summer Bungalow 1,100 sq ft* System Regina -32 °C 30 °C 26,400 BTU/h Z-PRO 27,000 · 2 zones Saskatoon -33 °C 30 °C 26,900 BTU/h Z-PRO 27,000 · 2 zones
New Brunswick City Winter Summer Bungalow 1,100 sq ft* System Moncton -23 °C 28 °C 22,100 BTU/h Z-PRO 27,000 · 2 zones Fredericton -24 °C 29 °C 22,600 BTU/h Z-PRO 27,000 · 2 zones
Nova Scotia City Winter Summer Bungalow 1,100 sq ft* System Halifax -16 °C 27 °C 18,800 BTU/h Z-PRO 27,000 · 2 zones Sydney -16 °C 27 °C 18,800 BTU/h Z-PRO 27,000 · 2 zones
Prince Edward Island City Winter Summer Bungalow 1,100 sq ft* System Charlottetown -20 °C 27 °C 20,700 BTU/h Z-PRO 27,000 · 2 zones Summerside -20 °C 27 °C 20,700 BTU/h Z-PRO 27,000 · 2 zones
Newfoundland and Labrador City Winter Summer Bungalow 1,100 sq ft* System St. John’s -15 °C 25 °C 18,300 BTU/h Z-PRO 18,000 · 2 zones Corner Brook -16 °C 26 °C 18,800 BTU/h Z-PRO 27,000 · 2 zones
* Bungalow with finished basement, built 1990–2010.
Where these temperatures come from The winter design temperature is the one exceeded in only 2.5% of January hours; it comes from the 2020 National Building Code and Natural Resources Canada’s HOT2000 weather files. It is the temperature at which heating is sized under CSA F280.
Rebates by province Cold-climate heat pumps
Frequently asked questions Which is the coldest city for a heat pump? Saskatoon, with a -33 °C design temperature. Kanartic models keep heating there without shutting off.
Why does the same house need more BTU in Quebec City than in Toronto? Because the gap between indoors (22 °C) and the design temperature is larger: 48 °C in Quebec City versus 40 °C in Toronto. Heat loss is proportional to that gap.
