pump ,feed and vent configuration.
- Thread starter dyson20
- Start date
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H
holty
why ask. is there concern of pumping over.the arrangment you have is very common.its only these days newbies are taught vent feed pump arrangement.but with boilers back in the days the heat ex had more water content and resistance as apposed to newer boilers with lower content heat ex.
How many pipes come off the boiler, 2 or 4? Sounds like a gravity hw/pumped heating setup.
I plan to replace the old boiler with a new condensing type, i just like to know where i stand before get plumbers in to quote and baffle me with jargon. Had a problem with over venting in an old house which started me thinking.
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u have a gravity system and this pipe arrangement is completely ok,when u change boiler it will need changing,and the 15mm vent is incorrect,it should be 22mm
H
holty
i understand were your coming from, and a very sensible question as a lower water content boiler could cause problems.its hard to say though without looking at the system layout.
When replacing the boiler the system will need converting to fully pumped. This will include reconfiguring the feed, vent and controls (pump, valves).
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