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Old 12-14-2016, 11:32 PM   #14
cappy208's Avatar
City: Cape Cod
Country: USA
Vessel Name: Slip Aweigh
Vessel Model: Prairie 29
Join Date: Oct 2013
Posts: 1,202
To me your idea of having a set of valves to shut off and bypass the heater would be ideal. I was contemplating putting this setup on my (current) water heater and (future) bus heater loops.

Trying to extend my season as well.
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