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 ?