Propane gas piping
I dont know your utility prices , but you should consider upgrade
possibilities for heat and HW. For most of the US electric is the
highest price per BTU. For me Electric is 50-60% more than fuels.
Copper and Black pipe may be ok. Call your city inspection or code
office for what is good for your local, gees we don`t know whats
accepted in your situation .
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