Re: Whole house ventilation


"Joerg" <notthisjoergsch@xxxxxxxxxxxxxxxxxxxxx> wrote in message
news:1cmre.591$Pa5.22@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx

> Why are whole house ventilation systems by default "whole house fans"
> that suck air out of the house? Why is there no system available at Home
> Depot, Lowes or other places that blows air into the house through a
> filter and then out the screen doors instead of sucking unfiltered air in?

Because, the "Average Consumer" *wants* a big lump mounted in the wall of
his home because that is all he is good for when installing it himself.

In Denmark we do not want "the lump" and energy is expensive so we will pipe
the air to the rooms in the house, the outgoing air goes through a
heat-exchanger and the heat pump sucks the heat out of it and uses it to
warm the incoming - in the summer, this is reversed. All the stuff goes in
the attic.

Alternatively, having no attic or a smaller house, one put the compressor
part outside, hidden round the back where the noise annoys the neighbours
more than yourself, and pibe coolant into a fan unit in the ceiling where
the heat bothers them most (livingroom/bedroom). This flow can be reversed
too.

But *nobody* kicks a whole in the wall for one of those noisy, ugly, lumpy
units that the Americans like ;-)

Toshiba and Hitachi seems to make most of those systems.


.

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