Off Grid Home Forums Technical Discussion Off-Grid ground source heat pump? Re: Off-Grid ground source heat pump?


I will say this however, in solar the win win situation is in using direct solar radiation to heat air. So in the geothermal situation maybe warming air isn’t such a bad way to go. It will require a lot of culvert or pipe though. It will also require active ventilation. If you don’t want musty underground smells and moisture in your dwelling then a heat exchanger would be more ideal.

The question becomes, how much energy is needed to blow or push air through the underground system vs operating an electric heater.