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    Additional manifold required for underfloor heating?

    Underfloor heating is being installed as part of job that includes a ground floor located boiler. It has been proposed that in addition to a manifold for the zone adjacent to the boiler a second manifold (requiring a dedicated pipe from the boiler running to it) is required for the second zone...
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    adding new ceiling lights

    I want to replace one ceiling light with two lights fed from the same junction box both operating from the existing light switch (so they both come on at the same time) I can replicate the wiring for one of the lights but for the other is it ok simply to add it to the junction box with the...
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    How does water heat inside a boiler

    Hi, I know that the water for both the CH and hot water is pumped around and through the boiler where the gas heats the water as it flows through. My question is: when the hot water is being heated but the CH off does the same amount of gas burn as when both CH and hot water is turned on...
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