Take the 2-minute tour ×  I have this idea, and since it seems
logical to me, but I don't see it anywhere I suspect I am
missing something.. so here it is:  Why not put a vent that
pushes air from the attic into house?    • At summer, everyone
wants to exhaust the hot attic air outside, makes sense.   •
Winter time, the attic still gets hotter, quicker, on cold
*sunny day then my house (because I have little direct sun into
my house, but also in any well insulated house).   • why not use
the greenhouse "attic" effect, and have a vent sucking the hot
air from the attic into the house? you could have that fan
linked to a thermostat, only pushing air when attic temp > house
temp...  seems easy and cheap, what am I missing?  share|improve
this question My attic is quite frigid in the winter. – 
ceejayoz Jul 21 '10 at 22:11 My attic is a quite DUSTY place.
Not sure I want a fan kicking on to blow all that insulation
debris and dust into the living area. –  JohnFx Jul 21 '10 at
22:18 Your attic shouldn't be more th