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    TRV SYSTEM

    What is fully trv system and does it have room thermostat in circuit?
  2. G

    Circulating pump

    Hi What is an automatic venting in Central heating… pump. My stuart turner st2580 has no bleeding point. But it says has automatic venting.
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    Heat only boiler wiring

    I have main 30 HE a heat only boiler. It is working fine, but just curious… it has no permanent electric supply to it. It comes live by zone valve when the programmer calls for either heat or DHW. Is that normal?
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    Heat exchanger manifold

    I am changing heat exchanger manifold on my baxi main 30 he a system boiler. What kind of silicone sealent I should use between the heat exchanger and manifold… I have new manifold… cw all new gasket and rubber ring. Or do I need to use any kind of sealent ?
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