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    Grant Vortex 21e - no DHW or CH

    We've got a Grant Vortex Pro External Combi 21e. It's been working brilliantly; it's recently had a service and a new DHW pump and expansion vessel fitted, around 4-6 weeks ago. However, Friday evening we lost both CH and HW (cold water comes through the hot tap). The boiler fires up fine and...
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    OSB3 for Flat Roof - T&G or normal

    Just have a flat roof built and a pretty simple question to answer (I hope). Construction to be (starting from the top): Sarnafil membrane 18mm OSB3 board 120mm foil backed insulation 1200g polythene VCL 18mm OSB3 board deck Firrings Easi-Joists (600mm c/c) The 18mm deck (sat on the...
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    Parapet Wall Coping Stone Question

    We're just building a single storey extension that will have a flat roof, with a parapet wall. I'm having a bit of an issue with finding once weathered stone copings that will suit my needs and are within budget. The width of the wall is 350mm, giving me a coping stone of 500mm, thus...
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    Quick Domestic Heating Underground Oil Pipe Question

    I'm just about to dig the trench for the oil pipe (gravity flow), from the tank to the boiler, for our plumber who returns from his holiday's next week. I'm sat reading the OFTEC website and have just come across this: Does this mean that the oil pipe must rise from the tank to the...
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    Moisture Resistant Foil Backed Plasterboard

    I'm after moisture resistant foil backed plasterboard, but there doesn't seem to be such a thing. It needs to be foil backed as it's on a sloping ceiling, to stop cold bridging. However, the sloping ceiling is going to be in an en-suite (close to a shower). Will standard foil backed p/b...
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    UFH Specific Insulation or is "Standard" Board ok?

    I've spent the last week trying to research, to no avail, whether we need to use UFH specific insulation (i.e. FF4000) under our UFH or if standard boards (i.e. GA4000) will be ok? Are UFH specific boards just marketing gimmick by the manufacturers to make you spend more money, or is there a...
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    Derbys/Notts - Oftec & Hetas Registered Engineer/Plumber

    Hi, We are after a plumber/heating engineer to re-install our oil boiler and link the system up with a multi fuel stove. We are located in North Derbyshire around J28. My mate's a plumber, but is only Gas Safe registered unfortunately. Can anyone recommend anyone? Thank you :)
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    Building out of Reclaimed Stone - Minimum Thickness of Wall?

    We are building our extension with an external skin of reclaimed stone (sandstone/gritstone). Cavity wall will comprise of: Internal Skin: 100mm blockwork, Cavity: 100mm insulation filled cavity, External Skin: Stonework. What is the minimum thickness the stonework needs to be...
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    Which non-slip floor covering for commercial kitchen?

    As above, what options do we have for a non-slip floor for a commercial kitchen? The subfloor is a concrete slab. We've had anti-slip vinyl in the past, but doesn't last much longer than a few year, before it tears or starts lifting at the seams. It's going to be in a wet and greasy...
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    Oil Boiler or Solid Fuel Boiler? What would you do?

    We currently have a Grant oil boiler (around 2 years old, which we bought last year secondhand for next to nowt). It runs around 12 double rads and a bathroom via an indirect cylinder. We currently have one large stove, one small stove and an open fire. Current total floor area over both...
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    Extension's DPC abutting existing building question

    Just going over the drawings for our extension and I've come across an element/detail I'm not 100% sure of. The existing building has no dpc or dpm (built circa. 1700), but obviously the extension will have. The detail on the drawing states that the dpm is to be taken under the existing slab...
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    Asphalt Floor - to screed or to plywood?

    We want to lay engineered oak flooring to our ground floor, however, the substructure is lined with asphalt (done in the 70's or 80's). The asphalt has areas of hollows and lumps and ideally we want to level this out. So my question is: Should I ply line it with 6mm (or 9mm or 12mm)...
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    Anyone Converted a Church/Chapel/Parish Hall into a Dwelling

    Hi My first post, so please go steady...(not sure if I have posted this into the right section?) As title, has anyone (themselves personally, friends/family) ever converted a Church/Chapel/Parish Hall or similair into a dwelling? Just looking for any costings/experiences/hassles/advice...
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