Z-Michigan
Veteran Member
We have a geothermal unit in our house. Prior owner put it in, we just got lucky. Electric costs for the geo unit run around $40-60 a month, year round (it provides heat, AC, and hot water). We also have a propane backup for heat only, plus for stove and dryer - we only use around 200-250 gals/year of propane, maybe even less. Oh, and the house's insulation is nothing special, probably built just up to whatever standard was in place in 1999.
I'm not sure if a geo unit makes sense when looking at monthly costs vs. installation - maybe it does. My wife grew up in a passive solar house and to me THAT is the way to go in the north - truly free heat and no real maintenance. You need some kind of backup heat, but the amount you need is a lot less than without the passive solar. And passive solar costs hardly any more to build if planned before construction; it just seems that no one wants to build them.
I'm not sure if a geo unit makes sense when looking at monthly costs vs. installation - maybe it does. My wife grew up in a passive solar house and to me THAT is the way to go in the north - truly free heat and no real maintenance. You need some kind of backup heat, but the amount you need is a lot less than without the passive solar. And passive solar costs hardly any more to build if planned before construction; it just seems that no one wants to build them.