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ProDave

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Everything posted by ProDave

  1. While the burner of an oil boiler is only on or off, it is controlled by a thermostat that is setting the temperature of the water leaving the boiler. So if all UFH zones are open, the flow temperature will cool down quickly once the burner stops so it won't be long before the burner starts again. But if just one zone is open, the flow temperature declines slowly so it will be much longer before the burner comes on for it's next burts. Hence power delivered and oil usage is directly proportional to the heat delivered. In our old house we used to turn the heating on 2 hours before we normally got up so it was warm by the time we were up, and in the evening it turned off at least an hour before we went to bed. That worked well for us.
  2. I hope one of the English members who are part P can come and comment. Unless things have changed, it is only new circuits or work in special locations. So if you have a power circuit feeding a sun amp, then altering that circuit to feed a different how water tank in a different location is not notifiable. Please someone correct me if that is not the case?
  3. I am not the best person to comment on part P as it does not exist in Scotland. But my understanding is it only applies to new circuits, and work in special locations like bathrooms. So if you have an existing circuit feeding say an ASHP and you want to modify that by changing the fixed wiring, that is outwith the scope of Part P so just get on with it. My choice for power switching from a microcontroller (Arduino in my case) was a solid state relay. That has been hapilly pulsing mu thermostat for years.
  4. The rest of us have a cylinder thermostat, and when that senses the water going cold the boiler ASHP fires up and re heats the cylinder. No need to put the boiler on for a timed period. The thermostat in in a pocket half way up the cylinder in our case. So when that senses the cylinder is "cold" you still have the best part of half a cylinder of hot water left.
  5. A lot depends on the quality of the corner. Nice smooth crisp plastering with a perfectly smooth, straight transition = easy. Old knackered ceiling with lots of patched up cracks and a corner that if far from smooth and straight = very hard to get it looking right.
  6. That looks at escape of hydrogen into the atmosphere. I was considering the burning of a long time captured reserve of hydrogen would result in removal of oxygen from the atmosphere as well as release of water vapour into the atmosphere. This is different to producing hydrogen as a means of "energy transportation" and then burning it. Both ends of the process pretty much cancel out. A bit like the burning of recently grown wood = good, burning very old stored wood (coal) = bad.
  7. If the planners refused a porch saying it is too big and you say it needs to be that big to be accessible, then that would be good grounds for appeal. Perhaps just telling your planners that is what you will do if they refuse it, might make them reconsider?
  8. It is definitely a requirement here. Outside underground pipes were tested when BC inspected them before filling the trenches. For the final test of the house pipes you plug it at the closest IC to the house, surely that won't be 8ft down? and you cap off any vent pipes. In the case ot a file vent you would uncouple the flexi connection and plug the top of the rigid pipe. I assume you have access to that in the loft. Then you should be able to pressurise it up to the depth of the lowest trap, in our case that was 80mm. Your "fun" starts if it won't pressurise as you would have absolutely no idea where the leak(s) is. If BC ask for this test pass their request to your builder / plumber who both should have known it would be required
  9. I read the extra post if >3M as suggesting if you don't then the balustrade rail might snap if you apply a .36kN/m load at mid point without the extra post.
  10. So total energy demand 25,265kWh per year, which currently at about 28.5p per kWh is an astonishing £7200 per year. What were you paying previously? I bet it is nothing like that. I would have ran a mile from that. How much are you actually using per month? And remember this will be in addition to your normal usage.
  11. You get plenty of time to do that during the sale process. However it all completed in a strange way, having been kept waiting for weeks due to problems on the buyers side, we had notification right at the end they were ready to complete in 3 days. Our solicitor had a busy 3 days as he had not been given warning of this sudden rush to complete after a long wait.
  12. With such a large reserve, the obvious thing would be to build a large hydrogen fuelled power station close to the well head. then all the distribution is by cables. Now a controversial thought. That Hydrogen has been there a very very long time. Burning it will remove O2 from the atmosphere and add water vapour to the atmosphere. Has anybody modelled what that will do to the climate?
  13. Why? You have all the figures on completion day. The tax rules have changed, it used to be you waited until the tax year end and then declared it, but now it has to be declared and paid within 60 days of completion.
  14. Yes, all declared and paid. It was not that much, covered by 3 months rent.
  15. No you just need to undo the wrong bits and re do them in accordance with the planning permission that was granted.
  16. I think you only get that temporary protection if it was the sale of your own house. Sale of your spare house might not count. Anyway it is distributed in suitable sized chunks and RBS did not go bust in the time it took to move it, so all is well.
  17. So make your covered walkway with a sloping roof as steep as you dare at least 45 degrees.
  18. What is the orientation of the plot and the summer house? I fitted mine on an east / west split, at the time thinking it would give longer generation than south facing, but completely overlooking the tree shading issues. So let the plot as a whole and any shading issues e.g to the east and west guide you. If I were doing it again (and if I fit more) I would be going for near vertical panels south facing, to maximise winter production (there is always ample in the summer)
  19. If you bought it from a local shop or merchant then take it back. If you bought it on line, it is probably not worth the hassle of sending it back. Just leave a review saying it arrived damaged. It hardly looks like high class joinery, and is clearly going to be painted, so I would pull out the errant staple, put a nail or screw in it's place and deal with the splinter with filler at the time of fitting the surround before painting. It would be a completely different matter if it were say nice finished Oak and that would remain on show.
  20. Chances are the TD duct is leaking and letting warm moist air into the garage. Best solution. Change for a condensing TD. More efficient, no need for a vent, all the water is collected, and the heat used stays inside your house. Just block up the old redundant vent hole. Even better solution, get a heat pump tumble dryer, but that is more money.
  21. That sounds like they gave you a different IP address to find this restore page, different to the IP address for the normal setup page? If so it would be handy to post that restore IP address here, it might help someone else in a similar position.
  22. Please tell us as much as you are able, what he had to do to get it to work?
  23. 3 phase cable is probably twice the cost (4 core cable vs 2 core cable) Another issue though is what infrastructure is in place already. We are near the end of a single phase 11KV spur. If I really really really wanted, or had to have 3 phase, then about half a mile of overhead 11KV line would need to be upgraded from single to 3 phase, and the transformer feeding our house would need replacing with a 3 phase one. You can imagine the cost of that would be completely stupid.
  24. In what way is it dangerous?
  25. Building regs in Scotland at least allow you to have about 20% less area of soakaway for a treatment plant vs a septic tank. Is that because they expect the soakaway from a ST to degrade and get clogged? The USP of the puraflow seems to be you don't need a soakaway, it will just drain into the space of the ground it occupies. Building control here did not agree with that and said it would need the same soakaway area determined by conventional means, which is why they rejected it for us.
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