Gallery: Incredible Ice Castles Grown by a Minnesota Man Using Geotherm...

In Hanson's case, his system takes ground water at 47 degrees to preheat his home and then rejects the water at 37 degrees into the pond near his home.

Read the rest of this entry »


or your inhabitat account below

get the free Inhabitat newsletter

Submit this form
popular today
all time
most commented
more popular stories >
more popular stories >
more popular stories >
Federated Media Publishing - Home