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    Rainwater got into boiler down the flue

    My boiler got flooded at the weekend. Heavy rain and wind blew water into the flue. The PCB has fried (or boiled) itself to death. Is there specific guidance on the angle of a flue that goes approx horizontally from the boiler to the outside? The insurance company are saying they won't...
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    Painting a mouldy wall

    My victorian terrace is bigger than the one next to it, so exposes a single brick thick wall to the western weather (ie. it's the width of a brick thick rather than the length) I currently let it out, and it's all been fine for 5 years till last winter's wet weather. I went there last week to...
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    MCB too small for shower

    I'm about to replace the heat exchanger on a friend's shower this weekend, but I noticed there is only a 30 amp MCB on a 9.5kW shower. Apparently it trips occasionally (every few months). The cable is big enough - it's the right size, and the shower switch is rated to 45 amps. So I checked my...
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    Wire pulling lubricant

    Having been warned elsewhere in this forum about the trickiness of wiring sockets in 25mm back boxes (and having just installed a bunch) can anyone recommend a safe method of lubricating the wires to reduce the force needed to pulled them out of the oval conduit for wiring up, and then pushed...
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    Shed socket

    Is a normal surface-mounted socket OK for a (brick) shed? The shed is connected to the kitchen with a covered, secure, "utility room" - ie. probably not an official indoor "room". I intend to run a spur from the kitchen ring-main along the brick wall of this utility room to the shed...
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    Copper microbore to plastic dodgy connection?

    While repairing a friend's leaky radiator, I found that the copper final connections to the radiators were attached to plastic pipe behind the plasterboard, but with no connector apparent. The microbore appeared to have been shoved up the 10mm plastic. The ends of the plastic are not...
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    Plastic vs. copper in central heating

    Is the flow resistance of plastic pipes the same as copper or not? Would a 10mm plastic pipe have the same internal dimensions as a 10mm copper pipe? I can't find any data sheets for plastic on the web.
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    Tricky CH balancing problem

    I have a problem with balancing the largest radiator in my house (which is in the coldest room). It is a 1.8kW radiator. The other 15 radiators are between 0.3kW and 0.8kW. When the system was installed the drop was 25C (and the room was very cold). The best I can get is a 16C drop (with its...
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