The purpose of a bypass between flow and return is to ensure thats there is water circulation through a boiler to stop it overheating right but can anyone tell me would this cause any damage to a central heating pump aswell if all zones were closed? cause my gaff has zoned heating and zoned hot water but no bypass
Bypass
- Thread starter mickmassy
- Start date
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right
thats why a lot of boilers have one built in
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