Greetings! We just moved into a house that we built. It has a Geothermal heat pump. It uses 5 Geomax heat pumps that send warm water through a radiant heat system as well as through forced air. We've had some technical difficulties in getting it to work as designed due to the way it interfaces with the backup gas boiler which also handles domestic hot water. I'm trying to learn as much as I can so that I'm not so dependent on our installer so I'll probably be asking a lot of questions.