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Lofty718

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  1. When a contractor quotes for piling it's an assumed depth just like most foundations. If they don't hit stable ground then they will drive the piles deeper until they do, they've done nothing wrong they are just trying to get on with their build. I do not see any issue here as long as they repair any damage to your property
  2. 19 thermostats is absolutely wild with a heat pump. You could probably remove every single thermostat and run the heat pump on weather compensation (how it should be) and your bills would be reduced by 30% at least My 5 bed 4 bath house is less than 200 sqm and feels pretty spacious, yours at 380sqm house must feel like a palace lol
  3. The curves on Viessmann must be different, my flow temps are a fair bit higher than that. Always between 26-40
  4. I run a curve of 0.25 for rads and 0.2 for UFH, over 1 is very high
  5. I have a boiler and PDHW setup and keep my UVC at 42c. Works very well
  6. Seems insane pricing A loft conversion like the OP's should cost around 60k in Greater London and the SE, not including flooring and bathroom fixtures
  7. Does this flue flashing look right? all other examples I have seen it's much more integrated/tiled in, they are getting water dripping in through the felt
  8. The coping stones should have a big enough overhang to stop that from happening
  9. The big issue I'm seeing here is that you think because you are on that list that you will actually get a piece of landed handed to you for diddly squat I cannot imagine many self builders with this kind of freebie attitude going very far, so I think more changes need to be made than just learning to build. It takes a lot of hard graft to get yourself in a position to acquire land, a lot of hard graft to manage a building project and an obscene amount of graft to self build your own plot from scratch on the tools yourself.
  10. You shouldn't need a blending valve with UFH and ASHP if you do have a blending valve it should be an electronic blending valve suitable for low temp UFH
  11. https://www.appliancesuperstore.co.uk/fisher--paykel-hp90ihcb3-90cm-built-in-extractor-hood-8578-p.asp I've got this, running up a chimney flu with 150mm ducting, it is very powerful Builder initially ignored instructions and put in 100mm ducting, but I ripped it out
  12. Are you really not covered if you don't have a completion certificate? never heard of that before... is that even the case when you do a loft conversion extension etc
  13. @msmithuk77 strange it seems like your plumber is 80% there with his knowledge, but a 35kw boiler is insane, an 18kw would do the job undoubtedly I'd do as @JohnMo suggested and run everything at the same flow temperature, this will provide maximum efficiency, reduce the amount of equipment needed, reduce electricity (pumps etc) and also reduce the amount of things that can go wrong in the system.
  14. I have flush casement windows from deceuninck, got them for a great price and they look amazing compared to standard UPVC. This is the site with brochure on https://www.heritagewindowcollection.co.uk/the-collection/flush-sash-windows/# Some people pay extra for the residence 7/9's where you cannot see the welds. But I find that uneccessary unless trying to make them look as close to being wood as possible.
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