"kitchenman" wrote in message ...
I have been pumping the hot air from my conservatory into the kitchen for
some years.
I use an old cooker hood fan & 100mm ducting, there are 2 thermostats, when
the air in conservatory is over 25C the fan starts, when the temp in the
kitchen is 22C the fan stops.
The conservatory faces east so misses out on max sun but works well even in
the winter.

--
regards
Dave Batter
Kitchenman
www.kitchenman.co.uk
www.sxmitres.info
www.marks-family.co.uk
http://oneandone.co.uk/xml/init?k_id=5568652
"David" wrote in message
om...
Has anyone tried pumping the hot air form the top of a conservatory
into the floor ?
I am planning to put in a thick concrete floor above insulation
(polystyrene ?) and am thinking about laying 4 or 6 inch drainage hose
in the concrete. Then with a couple of fans, piping the hot air from
the roof apex down under the floor.
The idea is to use the concrete pad as thermal storage, keeping the
conservatory warmer on marginal evenings.
It may still be necessary to vent some or most of the hot air on hot
days, but the system could be useful for some of the year.
The fans could be thermostatically controlled so that if the air temp
rose above say 22C they start to store the excess heat.
Anyone have any experience with this ?


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Read alt.solar.thermal

Plenty of good ideas on there. Search for 'solar closets'.

Nick