4 ms·
Ground source is losing the war. Too expensive to install, and if something goes wrong, start digging. Air source is getting better and better all the time.
by thehappypm 4y ago
Ground source is losing the war.
Too expensive to install, and if something goes wrong, start digging.
Air source is getting better and better all the time.
- timbit42 4y agoIn parts of Canada, such as Alberta, where it goes to -40C, anyone buying an air source heat pump is nuts. Ground source is the only viable heat pump option, in spite of its much higher cost. I guess they'll be stuck on natural gas until the climate rises some more.
- thehappypm 4y agoAir 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.