[hedgehog]

I checked with them on an uncommon configuration (combo hydronic heat and hot water for the taps to replace the two gas units we have now) and their estimate was a lot of money but they were also the only company that seemed to have any idea what I was talking about. The reviews I read do suggest if you have an alternative it might cost less though:

https://freshchalk.com/greenwood-heating-air-conditioning-se...