How much depends on many factors humans showers cooking plants opening doors and windows etc.
Air attic to basement.
Unfinished basements typically house furnaces air handlers and other hvac components.
That s true although the warm upstairs air will typically have more entrained moisture than the air in the basement.
Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts.
The 2nd duct is the return duct that attaches to the return air vents and draws the stale air out of the house through the filter and conditions it again to return.
But what i m trying to determine is should we go out of our way to change all the duct work and install the hrv in our basement.
So why put an hvac system up in the attic at all.
Today the hvac guy asked why we re not putting the air handler in the attic.
Any wiring or plumbing on top of the ceiling joist will have to be rerouted as to avoid contact with flooring being installed.
Some houses run duct work for heating and air conditioning through the attic while others have the complete unit in the attic.
Well mainly it s a way to save space.
We will be replacing it with an hrv shortly.
Basement stopping the chimney effect.
Two large pipes or ducts extend from the package unit.
We currently have an old 1980s air exchanger in our attic split entry home.
Without all the furnace air conditioner hardware and ugly ductwork the basement can be a great spot to put a rec room a home theater or even an extra bedroom or two.
Usually a basement has much less air volume than the upstairs areas of a home.
We had planned to have all hvac components water heater electric panels and low voltage components in that room.
Obviously it would be way easier just to keep it all in the attic and save room but i want to do what is best.
Outside air drawn in through basement leaks is exacerbated by the chimney effect created by leaks in the attic.
How to use cool basement air to cool the upstairs.
Or can we keep all in the attic.
But i think it s more an issue of volume.
Cooling your home does not have to involve investment in high price central air systems as homes with basements can use cool basement air to.
One is the conditioned supply air that serves the house with warm or cool air attaching to the vents in every room.
When designing a floorplan for your finished basement you ll want to develop a way to enclose your appliances for aesthetic and functional reasons without closing them off entirely.
Installing your hvac unit in the attic can free up space for these uses.
As hot air generated by the furnace rises up through the house and into the attic through leaks cold outside air gets drawn in through basement leaks to replace the displaced air.
The basement is already framed to include a 10 5 x 10 2 utility room.