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Cold-climate heat pumps for Newfoundland and Labrador

Across the 35 postal areas in Newfoundland and Labrador, the winter design temperature runs from −11°F (−24°C) to 9°F (−13°C) for most areas, with a median of 8°F (−13°C).

The design temperature is the annual 99.6% value: only the coldest 35 hours of an average year fall below it. Each area takes it from the nearest weather station, 2015 to 2024.

Winter design temperatures across Newfoundland and Labrador

Postal areas in Newfoundland and Labrador, by design temperature
Design temperature Areas Share
Below 5°FNo certified heating figure 16 45.7%
5 to 17°F 19 54.3%
17 to 47°F 0 0%
47°F and above 0 0%

The median January 2.5% value across these postal areas is −12°C (11°F). That is the statistic Canadian building departments state.

Sizes certified to cover a typical house at 8°F

The size calculator uses 18 to 30 Btu/h per square foot for a typical house where the design temperature is 0 to 19°F. Sizes are compared on the 5°F full-speed test.

For each type: the smallest size class whose median model is certified to deliver the bottom of the range at 5°F, and the smallest that reaches the top. The medians count one value per model. Size classes are named by cooling capacity.

1,500 sq ft: 27,000 to 45,000 Btu/h

2,500 sq ft: 45,000 to 75,000 Btu/h

Your own house

6,618 of 8,420 certified units carry EPA's cold-climate designation. Cold-climate heat pumps by size

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