5 ms·
Air source + natural gas for when it’s that cold is still cheaper than ground source.
by thehappypm 4y ago
Air source + natural gas for when it’s that cold is still cheaper than ground source.
- timbit42 4y agoOver how many years? An air source heat pump that you only use 8 or 9 months of the year will take longer to pay for itself.
- thehappypm 4y agoModern heat pumps are rated to about -15F. In Fort McMurray, a large-ish city in northern Alberta, the average low temperature in the coldest month (January) is -7F. The average low temperature is below -15F about 15 days a year on average. That means you’re really using your heat pump for a huge percent of the time.