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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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#1
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Undfer floor heating in conservatory revisted
Thanks to all those who replied to my last post back in February.
We used a ramp made from scaffold as the back door is at the bottom of the steps so we couldn't pile rubble there. The ramp has been great. Got lots of other garden jobs done at the same time! The wheel barrow worked a treat even without a huge run up. As the garden itself is pretty flat due to having been terraced when built the precautions from The Natural Philosopher were great but not required. The conservatory is on the north face of the house. The east wall of the conservatory is all block, the north and west faces all glass. We have gone for suspended timber floor. The joists are 12"x1" at 12" centres and are at the same height as the current floor so teh damp proof runs through. We've got the water laid on from the new bolier to just inside the house where the door to the conservatory will be ready to run the pipes to. Quotes for electric and wet kits are about the same at around £400 for 4mx3.5m incl thermostats etc. So I've learned that Electric is easier to install but more expensive to run. Wet is cheaper to run but more expensive to install. My new question is will electric UFH warm up the room quicker and if so by how much? Will it halve the warm up time or will the fact that the heat loss will be so great counteract this? Its probably going to be used at the weekends in the spring/ autumn/ winter for the kids to play in and in the evenings in the "summer". If we want to spend a whole summer evening down there and it gets chilly at 9pm we don't want to have to wait until 11pm for the room to get warm. Equally we don't want to have to turn the heating on at 7pm in order to be warm at 9. Also is it a big job to run the wet UFH at different times to the rest of the house central heating? Our room is in the loft so warms up when the house heating comes on. We don't want to be baked out of bed by the whole system coming on when we only need to take the chill off the conservatory. It normally comes on at around 6am. Obviously electric UFH has its own completely independant timer. Any comments? ChrisJ |
#2
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Undfer floor heating in conservatory revisted
The message
from ChrisJ contains these words: Also is it a big job to run the wet UFH at different times to the rest of the house central heating? Depends on which system you've opted for. If it's part of the main radiator circuit, then it's not really possible unless you're going to run round turning off all the valves. If it's got its own pump or is plumbed back to the CH/HW valve then it's trivial. -- Skipweasel Pay no attention to that man behind the curtain. |
#3
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Undfer floor heating in conservatory revisted
On Wed, 10 May 2006 21:29:50 +0100 someone who may be ChrisJ
wrote this:- Its probably going to be used at the weekends in the spring/ autumn/ winter for the kids to play in and in the evenings in the "summer". If we want to spend a whole summer evening down there and it gets chilly at 9pm we don't want to have to wait until 11pm for the room to get warm. Underfloor heating is not something that does rapid changes of conditions. However, with a suitable control system it will cope with changes in temperature easily. The ideal control system has optimum start and stop, using internal and external temperature sensors. You tell it when the room will be occupied and it will turn the heating on and off as it thinks fit in order to have the right conditions when the room is occupied. It will also have weather compensation built in to cope with autumn/winter/spring conditions. If you want a system to rapidly warm up the conservatory, as and when required, then install power radiators. These still need to be on a separate zone. Control can then be simplified to a time clock, though you might operate them manually most of the time. Equally we don't want to have to turn the heating on at 7pm in order to be warm at 9. The conservatory should be on a separate zone, with separate controls. Then the house and conservatory will operate separately, though the boiler is common. Also is it a big job to run the wet UFH at different times to the rest of the house central heating? Separate channel on your existing programmer, if you have a spare one. Alternatively a separate controller. This will control valve(s) or pump(s) and boiler as necessary. The pipework needs to run from a suitable place, which depends on your pipe layout, to the conservatory. -- David Hansen, Edinburgh I will *always* explain revoked encryption keys, unless RIP prevents me http://www.opsi.gov.uk/acts/acts2000/00023--e.htm#54 |
#4
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Undfer floor heating in conservatory revisted
"ChrisJ" wrote in message ... Thanks to all those who replied to my last post back in February. We used a ramp made from scaffold as the back door is at the bottom of the steps so we couldn't pile rubble there. The ramp has been great. Got lots of other garden jobs done at the same time! The wheel barrow worked a treat even without a huge run up. As the garden itself is pretty flat due to having been terraced when built the precautions from The Natural Philosopher were great but not required. The conservatory is on the north face of the house. The east wall of the conservatory is all block, the north and west faces all glass. We have gone for suspended timber floor. The joists are 12"x1" at 12" centres and are at the same height as the current floor so teh damp proof runs through. We've got the water laid on from the new bolier to just inside the house where the door to the conservatory will be ready to run the pipes to. Quotes for electric and wet kits are about the same at around £400 for 4mx3.5m incl thermostats etc. So I've learned that Electric is easier to install but more expensive to run. Wet is cheaper to run but more expensive to install. My new question is will electric UFH warm up the room quicker and if so by how much? Will it halve the warm up time or will the fact that the heat loss will be so great counteract this? Its probably going to be used at the weekends in the spring/ autumn/ winter for the kids to play in and in the evenings in the "summer". If we want to spend a whole summer evening down there and it gets chilly at 9pm we don't want to have to wait until 11pm for the room to get warm. Equally we don't want to have to turn the heating on at 7pm in order to be warm at 9. Also is it a big job to run the wet UFH at different times to the rest of the house central heating? Our room is in the loft so warms up when the house heating comes on. We don't want to be baked out of bed by the whole system coming on when we only need to take the chill off the conservatory. It normally comes on at around 6am. Obviously electric UFH has its own completely independant timer. Any comments? A neighbour just had a new conservatory and had electric UFH heating installed. It is so expensive to run they just do not use it. Conservatories are best heated by Myson convector heaters run off the CH hot water system. These can be at high level. You switch on a few minutes before you enter and they heat up fast. Switch off when you leave. Go to fan convectors: http://www.myson.co.uk/product.asp |
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