Heat pumps, geothermal and AC
Air Source Heat Pumps vs. Geothermal Heating: Which is Better for Your Home?
...heat recovery or energy recovery ventilation system (HRV or ERV) and making sure the home's attic and walls are well insulated. Take a look at which home renovation measures make the biggest improvements and energy savings at the lowest cost here.
Now you know more about Geothermal Heating vs. Air Source Heat Pump...