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    Maximum Heat Delivery via 22mm Backbone

    Hi all Can someone educate me about the following:- (1) What is the maximum heat that can be delivered via 22mm copper, or 22mm anything (2) At what point would one chose to go from 22mm to 28mm for a very large property? (3) At what point would you consider installing a second pump...
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    Electronic TDS meters

    Anyone got any opinions of which one to go for? Cheers
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    SDS arbour sheered off - trouble finding replacement

    Coring through a wall yesterday my short arbour sheered off. Anyone know where I can get a replacement? Also, does anyone know how I can get the remains of the arbour out of the SDS chuck or is the drill junk now? Ta
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    Weeping strap on boss

    I did a system to combi conversion last week, putting a Baxi HE133 up in a loft. The soil stack is in the most inaccesible place imaginable, needing several minutes and extreme care just to get to it without falling into the bathroom below. Anyway the boss is weeping slightly and there is...
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    3/4" rad lockshields and TRVs

    Anyone know where I can get them relatively cheaply? Cheers
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    Heat loss calculations - advanced sums - clever dick needed!

    while my van is being serviced I'm in the process of redesigning my standard quotation system to utilise the "energy efficiency best practise whole of house sizing method" to justify proposals made regarding the killowattage of the boiler. Whilst this is easy and quick to do I would like to...
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    Anyone know what a spreader elbow is on a Baxi WM 382 RS

    Bit before my time I'm afraid. Anyway, it's leaking. I've checked the install docs at partsarena which says "IT MUST BE FITTED", but doesn't say what it does. Clueless as usual. Any hints or tips gratefully received. Cheers
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    Rogue Traders

    Is it just me or has this programme become even more of a joke than it used to be? Is it supposed to be a serious bit of investigative journalism or just light entertainment? in my opinion it falls short of either. I have never seen a less convincing 70 year old Welshman, and I am...
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    Emergency pump advice

    I've had a few jobs lately where it is necessary to drain down tanks, cylinders etc but have found that the drain offs are either not fitted, don't work at all or work very slowly. Usually I would syphon out but am looking for a faster method. I've tried those drill attachments and found them...
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    Odd heating / hot water system

    Hi Have to go and replace a couple of 11" heaters in central London tomorrow evening. The owner has sent me some photos of his setup. We have successfully established over the phone that he has voltage to both heaters and both are open circuit. It appears to be a thermal store system...
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    Icon boiler - what is it really?

    Travis Perkins used to sell these but I'm 100% certain that they didn't build them. Anyone know what the Icon combis really were/are? Cheers
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    Condensate soakaway regs question

    Can someone point me in the right direction for a definitive article regarding the regs concerning the construction of soakaways for steamer condensates? I think I'm right (but wouldn't put any money on it) in that you need 600mm of 100mm appropriately drilled plastic with a further 400mm...
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    Vertical flue installation - advice needed

    Hi I need some advice on the installation of a vertical flue going straight through a pitched roof. I've only ever installed standard horizontal flues before, so to be honest don't have much of a clue. The house currently has a primatic HWC and a one pipe system, all of which is coming...
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    Two wire room thermostat for a combi

    If I have a combi to install with an onboard timeswitch, as most of them do, I don't really want to install an expensive programmable roomstat. What options do I have for fitting a simple, volt free roomstat? just about everything I look at is 230V Cheers
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    Heatline C24 condensing combi - anyone any experience?

    I've searched the previous posts and found nothing particularly odd re complaints etc, but has anyone any experience of fitting them and any comments about them at all? They seem to be a bit of a bargain and with a 2 year parts and labour warranty I might give them a go. Any advice...
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    Jaguar combi boiler - can't find docs

    Anyone know where I can download the docs for a Jaguar combi? I believe these are Ideal boilers rebadged for the Plumb Centre (who are no help at all). Ta
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    Installation of Ferroli Ferroli Optimax 25 HE

    Does anyone have a link to the install docs? Ferroli site just has brochure and request for literature page does not work. Need to know the fitting layout and limitations. Cheers AB
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    Laying copper - price per metre

    I'm hopeless at pricing and need to wise up a bit, so, sorry if this sounds a bit nosey but I would appreciate some advice ...... Can I have your thoughts on standard pricing to run 15/22mm surface and underfloor? does this include soldered fittings or not? if not what is a normal standard...
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    Unvented safety pipe to Hepvo

    Anyone used this? evidently Hepworth are now claiming it's all legal. I thought some individual BCO's were OK'ing it but not all. How does it work anyway. Saying I'm coming off the tundish in 22mm, how does this connect to 32 or 40mm? One more thing, how is it pronounced? hep vee oh?
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    Condensing 3 month leeway

    I've got a couple of combi conversions coming up and TBH I would rather fit non condensing boilers as the condensate run will be a bit awkward, but not impossible. Hypothetically, how many people would use the "work in progress" or "ordered before April" excuse/reason on occasions such as these?
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