Use metal flex or fiber board ducts that are insulated to code.
Moving hvac ducts in home attic.
5 good ways 1 bad way to get your ducts inside conditioned space image credits.
Moving a furnace to the attic.
Connect the end of the flex duct onto the circular end of the rigid duct with self tapping duct screws.
There will be less duct leakage.
When hvac ducts are installed in a vented attic in a dry climate bury the ducts in attic insulation to protect them from temperature extremes in the unconditioned attic space.
Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts.
Some things to consider the usual place you ll find furnaces in homes across the u s.
So why put an hvac system up in the attic at all.
But in southern california basements are extremely rare so most homes have floor furnaces a k a.
Install ductwork so that it is in direct contact with i e laying on the ceiling and or truss lower cords.
Get those air conditioning ducts out of the attic.
I chose unfaced batt type so that it would stay in place.
All other images from ibacos paper on building america research.
Photo of ducts in attic by energy vanguard.
The 1 800 square foot brick ranch in climate zone 4 dates from the 1960s but the previous owner installed both a furnace and ductwork in the attic just four years ago.
According to nrel researchers david roberts and jon winkler moving the ducts from a vented attic to a new location inside the conditioned space will reduce electricity used for cooling by 15 to 20 and will reduce the size of the needed air conditioning equipment by 0 5 to 1 ton.
Here s why that is a good thing.
I believe that moving ducts out of the hostile temperature environment of the attic is obvious.
Strap the flex duct to the attic framing at 4 foot.
An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan.
Well mainly it s a way to save space.
However unless you have new construction is highly doubtful that you can find an alternative.
Attic hvac systems save space.
Sometimes air conditioned air will seep right through your ducts and become useless instead of heating and cooling your home.
Seal the connection with duct tape.
Ted has more than a few cobwebs in his attic.
Duct leakage causes a lot of problems including less.
The duct insulation should include a vapor barrier cover.
Attic hvac systems also require shorter ducts.
The unconditioned space also houses his hvac system.
All ducts are at risk for this type of leakage.
I am finishing my basement in my 2 story 50 year old home.
