"NickW" wrote in message
om...
"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.

Good idea. It is best to have ducting from the conservatory into the loft
and have a grill in the ceiling over the hall. Then the hot air can reach
many parts of the house. You could also have grills in all bedrooms, if
enough heat is generated. All easy, and apart from a cheap fan, nothing to
run.

You can use a conservatory to cool a house. Hot air in the conservatory
rise up and out through an open roof window. This bring air in from the
house, which is replaced by cooler air from the north side of the house
(best have the intake grill under vegetation to ensure it is cooler. So hot
air can move air bringing into cooler air. All totally free to run and only
some thought and ducting.



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