underfloor heating - running costs

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years
You have to focus. It was gas v lecky.
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IMM wrote:

So? It also costs about 3 times as much to install. Who pays for fiuel? Who pays for installation?
Go figure (assuming your un snotty Uni taught you (a) the meaning of the word and (b() how to do it).

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In this months Selfbuild and Design mag there is an article on heating systems by an eco expert. Underfloor heating was ruled out in poorly insulted houses (which may be the case in Ireland) and only deemed suitable in homes with, or just above, current building regs insulation levels. High insulation levels were better suited to forced air heat recovery ventilation systems.
The design of UFH has to be right, with no cold spots in the floors, "high" insulation under the floors and "very" good control. A condensing boiler is now virtually mandatory for economy. If all points are not right then it may be a disaster.
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IMM wrote:

On the contrary, people have been insulting the Irish and their houses for decades.
You must try harder to get your facts right. gamma minus.
(usual ill informed drivel deleted)
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It's pointless for us to insulate cos we have to keep the kitchen door open all the time to let the pigs run in and out.
Suzanne The Irish are a fair people, they never speak well of one another. Samuel Johnson
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g wrote:

With decent insulation and a wet system - i.e. not electric - its pretty close to a conventional system.
What I find is that teh longer delays mean it spends a fair time warming up and colling down, and this represents a little bit of heat you probably wouldn't have used if it came yup to temp faater.
Do a decent insulation job and go for it. If you want to be very clever, bt in zone valves and thermostats for every room. Then buold a controller than can cope with all of that on a different basis from the rest of the CH.
Its possible to vastly overheat if you don't have some way of ensuring each room is at the right temp.

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