Hello All!! I have been reading daily on your forum for a while now and was wondering if there are some of you out there that could help me. I have recently purchased some ground in Illinois with the plans of building a shed and then making a home in part of the shed till I get some things paid off. I was hoping to heat a 30'x 30' area with radiant heating in a 6" slab which would serve as my garage/workshop. Also, I was hoping to heat the house part which is going to be 30' x30' 2-story with a heat exchanger coil and forced air because I will also need air conditioning in the summer, also I would like to have the DHW provided. I have read so much information on here about different boilers and the such and after thinking about all of them I think that the Garn would be the best way to go because of the included storage and the possibility of being able to heat an additional house eventually. My question to you is what is the best way to plumb all of this? Boiler-DHW(primary) House-Garage(secondary)?