I have an existing solid fuel heating system and I want to connect up
an oil fired boiler to it.
Please advise on how I should plumb it, I believe I should use some
check valves but not sure where they should go or what type is best
spring or flap. Also do I need another circulating pump ?
email@example.com (kenny b) wrote in message
There is an existing solid fuel boiler, with gravity system on hot
cylinder and radiator teed off this with a pump.
My understanding is that I can just tee into the main flow and return
with my flow and return from my oil fired boiler. I was told that I
need to put in check valves so that I don't turn the out of use boiler
into a radiator that just puts heat up the flue.
The other question was do I need a second pump to drive the water into
the Oil burner instead of the solid fuel.
I appreciate any advise or a link to a site that has a suggested flow
In the UK, we have these things called Dunsley Neutralisers that allow
gravity circulation from a solid fuel system and a separate boiler to be
installed. They are fail safe in that whatever happens, the solid fuel
circuit will still circulate, rather than blowing up the range/stove.
I don't know if US practice is different.
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