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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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Heating system - how much space needed?
I'm about to install a loft ladder so I can get into my attic easily
and it would be just great if I can fit both the loft ladder and (eventually) the new heating/water system without having to move any of my old heating/water system for the time being I've not yet done any planning of the the new heating/water system beyond thinking that it will be a mains pressure system suitable for a three bedroom two bathroom house The space I'd like it to go into is a triangular gable end which when floored will be 2300mm wide, 1150mm high in the centre and 1100mm deep Can anyone tell me if this is likely to be a big enough space for my new system? I hope so, cos otherwise I will have to find somewhere else for the loft ladder thougb I suppose that is better than fitting it and then deciding later that it will have to be moved Anna ~~ Anna Kettle, Suffolk, England |""""| ~ Lime plaster repairs / ^^ \ // Freehand modelling in lime: overmantels, pargeting etc |____| www.kettlenet.co.uk 01359 230642 |
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#3
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On Mon, 17 Jan 2005 10:28:13 +0000, Andy Hall
wrote: I think that the height could be a problem, Anna. Thanks Andy If you are going to plan it this way, I think some careful research is needed now. Is there another place with greater height where at least a cylinder could go? Thanks for your comments Andy. Not the answer I wanted, but I must have had suspicions or I wouldn't have posted here. There are several other places I could put a cylinder. Does it need to be close to the boiler? The trouble with all the other places I have thought of so far is that they all have their own defects Ah well, I'll put the loft ladder on the back boiler (so to speak) while I get up to speed on heating systems. Time to inspect the FAQ I think Anna ~~ Anna Kettle, Suffolk, England |""""| ~ Lime plaster repairs / ^^ \ // Freehand modelling in lime: overmantels, pargeting etc |____| www.kettlenet.co.uk 01359 230642 |
#4
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If you could get an unvented system that's short enough, you might put
two in parallel. You'd still have to have two lots of safety devices (pressure relief, T&P relief valves, discharge pipes, etc., etc..) and they should/must be serviced annually, so this could have high maintenance costs. Probably a last resort solution. I've seen unvented systems installed in an enclosure constructed at top floor level, in the space over the stairwell. You have to have 6.5ft ish headroom over the stairs at the lower levels, but the space in the stairwell at top floor level is usually wasted. Probably impractical for listed building dwellers. You also need to minimize the distance for the discharge pipe from the 2 relief valves' ; it needs to be fairly direct. The pipe size increases with it's length and the number of elbows. You can wind up with a 54mm copper pipe on the outside of the building or it could be impractical. |
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Aidan wrote:
If you could get an unvented system that's short enough, you might put two in parallel. You'd still have to have two lots of safety devices (pressure relief, T&P relief valves, discharge pipes, etc., etc..) and they should/must be serviced annually, so this could have high maintenance costs. Probably a last resort solution. I've seen unvented systems installed in an enclosure constructed at top floor level, in the space over the stairwell. You have to have 6.5ft ish headroom over the stairs at the lower levels, but the space in the stairwell at top floor level is usually wasted. Probably impractical for listed building dwellers. You also need to minimize the distance for the discharge pipe from the 2 relief valves' ; it needs to be fairly direct. The pipe size increases with it's length and the number of elbows. You can wind up with a 54mm copper pipe on the outside of the building or it could be impractical. Ive got my unvented tank in the roof, bang next to a chimney under the ridge, where there is height. Boiler is at ground level due to it being oil, and needing some semblance of gravity feed... all works fine, except dowsntairs hot water has a long way to go, and takes time to come through. |
#7
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"Anna Kettle" wrote
| There are several other places I could put a cylinder. Does it need | to be close to the boiler? Provided you have big-enough and well-insulated-enough pipes you can have the boiler in a separate building. You want the cylinder(s) close to the point of use of hot water. Owain |
#8
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Thanks everyone for your comments. What with them and the FAQ and
heatwen.com I have just had a fun evening reading up on heating systems. The outcome is that no way will I fit a suitably sized standard thermal store in the allocated space. There is a 'lying on its side' version available at a price, but before resorting to that I will cudgel my brains to think up another place with more headroom to put the thermal store. I suspect my system might end up looking remarkably like NP's On the bright side, having removed half the heating system there is now plenty of room for the loft ladder Anna ~~ Anna Kettle, Suffolk, England |""""| ~ Lime plaster repairs / ^^ \ // Freehand modelling in lime: overmantels, pargeting etc |____| www.kettlenet.co.uk 01359 230642 |
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