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    Nest - Away Mode, heating still comes on

    I have a Google Nest 3rd gen, bought 2022. The Away Mode is driving me mad. I turn the Away Mode on when I go away (which supposedly puts the heating to 'Eco' 10.5 degree mode). But then checking the history in the app, I can see that my heating has still been coming on according to my usual...
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    1.2m plasterboard, but 1.22m joists!!!

    Have I screwed up here? Just bought all my plasterboard to redo my ceiling, currently looking at bare joists following an extension build. The house is 1950's so joists are 16" apart, which means my standard 1200 x 2400 boards are just short in both directions.... which is very annoying. Is...
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    Fixing solid wood floor to FLOW SCREED

    I have had a new flow screed put down in my extension. It was a cementitious screed, that went down as a liquid, with a fully tanked membrane underneath. It was a couple of months ago so it is fully dry but obviously I will be checking this before putting flooring down. The screed has a very...
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    Plastering a new block wall

    Hi, the internal walls of my new extension are Fibolite blocks (I assume can be considered the same at Thermalite). Regarding the plastering - I would like 'proper' plastering rather than dot & dab plasterboard. Questions: 1. I'm guessing a fully plastered wall is more expensive than dot & dab...
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    Navien oil boiler - smart controls

    Hello All I have more or less convinced myself to get a Navien oil boiler to replace my ageing (and leaking) Danesmoor. They seem to have good reviews, seem a bit more modern that others, and are quite a bit cheaper. Question - is anyone here familiar with the various control options? If you...
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    Change regular to system boiler

    I'm getting a new boiler (oil). Current set up is traditional vented, expansion tank in the loft etc. I was assuming I would just replace like for like - i.e. get a new regular/heat only boiler, and leave the rest as is. One plumber has suggested I put in a system boiler instead and ditch the...
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    New Boiler - Kitchen or Utility model

    Looking to get a new oil boiler. Old boiler is a Worcester Bosch Danesmoor 15/19. Going to replace more or less like for like, but given a new extension going to go for a slightly higher powered version - 18/25. Question is whether to go for the 'Normal' or 'Utility' version. The only...
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    PIR insulation board cutter

    I am about to start insulating an extension roof. It involves cutting a large amount of 100mm PIR insulation board. Having cut a few bits already with a hand saw, it is very hard to get a straight line at 90 degrees all the way through. There is a Festool PIR cutter which looks perfect for the...
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    Identifying parts

    I have just dismantled my old oil boiler (22 yrs old) and electrics that go along with it. A new one will be installed later in the year, and moved to a different location due to building works. In doing so, there are a couple of components in the electrics that I have no idea what they are...
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    Concrete Mixes

    Does anybody have a definitive guide to the different strengths of concrete, and the ratios of how to mix? Online searches are confusing to say the least.... C20, C30 etc... M20, M35 etc... Gen 1...?? For what it's worth, I am after a mix for C35 for a cast in-situ padstone.
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    Padstone size - confused

    I have the spec of my padstones from my SE - but he has gone AWOL and I am unable to clarify with him what exactly he means. This is a single RSJ, with top plate, that will be supporting an old, standard brick cavity wall (approx. 300mm wide). The structural calcs refer to "Padstone 1 & 2" -...
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    Danesmoor 15/19 intermittent immediate lockout

    Morning all. Another lockout issue with my elderly (Yr 2000) Worcester Danesmoor 15/19 oil boiler. It runs fine most of the time, but on restart sometimes it just doesn't fire. It doesn't seem to happen mid-run, just when it is restarting. The motor and fan runs, and I hear one click (from...
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    Oil boiler lockout - Danesmoor 15/19

    Hello All. My oil boiler (Worcester Danesmoor 15/19, year 2000) was on all day yesterday with no issues, but today it keeps locking out. It fires up ok, but a few minutes later, it stops burning, and then locks out.... which keeps repeating if you reset it. Things I have checked so far: 1...
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    Moving an OIL boiler

    Evening All. As part of an extension (self) build, my boiler, which is oil fired, needs moving. Am I able to do this myself? It is a standard worcester danesmoor oil boiler (non condensing, year 2000) The piping is very simple, and not being moved very far, so I could easily do that myself...
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    Window sill corner detail

    Does anybody have a diagram or drawing showing how the lower corner of a window sill is constructed, and how the DPC and cavity closers join/overlap to form a waterproof joint? I have recessed windows (i.e. they sit in the middle of the wall), and will be making a sub-sill from creasing tiles...
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    DPC thickness

    The building regs say a DPM should be 1200 gauge - but what about DPC? The DPC's you buy in Toolstation and the like seem to be thicker than 1200 gauge, but what is the actual requirement? Could you use a sheet of DPM cut into strips as a DPC? - for example, as a cavity tray above a lintel...
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    Pole plate - remove rendering or not?

    The pole plate (I think it is called that - I.e. the wall plate attached to the existing house on a lean to roof) - must you remove all the rendering before attaching it, or can you leave it and screw directly into the rendered brick... providing the render is sound of course. It is a right...
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    Wall plate timber

    Evening All. I am about to start constructing the roof on my extension, which is a typical single storey, with a lean to roof joining the house. The 'lower' wall plate, I.e. the one sat on the blockwork is best made from either 50x100 or 75x100 timber by the sound of it, to give enough to nail...
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    Concrete Block Strength

    Hi All... Possibly a stupid question, but here goes - how much weight can a concrete block (7.3N) and a Thermalite or Fibotherm (3.6N) actually support before it crushes? Reason for asking is that I have 4m lintel (Catnic extra heavy duty) going in above some bi-fold doors - its a single...
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    Joining extension to a house that leans

    Hello All. Currently building an extension, and am sat at DPC level. The house I am joining to has walls that are not plumb - only slightly out, but makes a difference of a couple of cm or so once you get up to around 3m. How do you tie the extension into this? Other than just making the...
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