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Need Advice for New Construction Domestic Hot Water + Radiant Floor Heat
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Leauxx
Member Posts: 1
Building a 3,000 square foot home in Western Montana, about an hour south of Missoula. We have a basement slab that has about 1,600 feet of 1/2" PEX with 6 zones. The home will have three bathrooms, kitchen, W/D. I'm trying to decide between electric vs. propane water heaters. Our electric is cheap. 6 cents per KWH.
Will I need a separate water heater for the radiant floor heat? If so, how many gallons? As for domestic, would one 50 gallon tank work for the whole house?
Thanks for any advice/brand recommendations you can give. I 've been doing research but still overwhelmed with choices!
Will I need a separate water heater for the radiant floor heat? If so, how many gallons? As for domestic, would one 50 gallon tank work for the whole house?
Thanks for any advice/brand recommendations you can give. I 've been doing research but still overwhelmed with choices!
0
Comments
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First off a load calculation to size the heating appliance.
Next, how much hot water do you have now? Is it adequate? 40- 50 galloons are most common, or a tankless type.
Plenty of online fuel cost calculators search fuel cost calculators.
Figure standard electric heat at high 90%. Boilers run mid 80- mid 90%.
Heat pumps will maximize electric energy use.
Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream0
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