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radiant floor heat/domestic hot water units
I failed with a longer post I tried to submit, so will keep this short and expound on it if warranted. Basically, I just wanted to know if a radiant floor/domestic hot water combination unit was more or less efficient in actual practice than having stand alone boiler and hot water heater. I live in northern Illinois, and this concerns new construction. My thinking is that trying to make one boiler do two purposes means the unit will not be at peak efficiency most of the time...but then again maybe he difference in working temperatures might mean better recovery of heat in the combination unit (?) Any pertinent comments? Thanks.