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
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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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.
The Irish are a fair people, they never speak well of one another.
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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