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    D2 pipework options for unvented cylinder in loft

    Hi, Apologies if this has been answered elsewhere, I had a search through but I couldn't find anything. I am installing a 200l direct unvented cylinder in my loft. I am running all the pipework up to the cylinder, and the the G3 certified plumber will be doing final connections and...
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    Air gap needed if roof has no membrane?

    Hi, Recently purchased my first house, and I'm in the process of sorting out the loft. The plan is to insulate the roof to <0.18U, so that in the future it can be converted to a livable space once I can afford it. This is a mid-terrace house built in the 1930s. The roof construction is slate...
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