We got an estimate from one of the contractors yesterday. He has done a bunch of very well sealed houses. However, his price came out a bit too high, and it seems like he would be inclined to build a different type of house than we want — extremely energy efficient but otherwise conventional.
Do any of you guys know how much a hydronic ground source heat pump costs? The prices we can find online include full geothermal system installation and are insane ($30k). I wouldn’t think the pump itself would be that expensive since it is just an air conditioner run backwards.