My oil burner has a coil to heat water. I turn off my hot water heater
in winter. Do I need to drain the hot water heater or do anything else
before I turn it back on in spring?
Thanks in advance for the help.
Just out of curiousity how does this setup piped? Are they in parallel and
you open and close shutoffs depending on which you're using or are they in
series and all hot water (or water to be heated) goes through both?
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