So why put an hvac system up in the attic at all.
Moving hvac ducts in home attic.
Instead i covered my attic ducts with insulation.
Connect the end of the flex duct onto the circular end of the rigid duct with self tapping duct screws.
Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts.
Duct leakage causes a lot of problems including less.
Sometimes air conditioned air will seep right through your ducts and become useless instead of heating and cooling your home.
Here s why that is a good thing.
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.
5 good ways 1 bad way to get your ducts inside conditioned space image credits.
Moving a furnace to the attic.
The duct insulation should include a vapor barrier cover.
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.
But in southern california basements are extremely rare so most homes have floor furnaces a k a.
However unless you have new construction is highly doubtful that you can find an alternative.
Seal the connection with duct tape.
Ted has more than a few cobwebs in his attic.
An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan.
Attic hvac systems save space.
I chose unfaced batt type so that it would stay in place.
Use metal flex or fiber board ducts that are insulated to code.
Install ductwork so that it is in direct contact with i e laying on the ceiling and or truss lower cords.
There will be less duct leakage.
All other images from ibacos paper on building america research.
Get those air conditioning ducts out of the attic.
Some things to consider the usual place you ll find furnaces in homes across the u s.
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.
Strap the flex duct to the attic framing at 4 foot.
The unconditioned space also houses his hvac system.
One place never to put hvac system ducts.
All ducts are at risk for this type of leakage.
Part of the job will involve replacing a load bearing wall with a post and expanding the living space into the old laundry room.
Attic hvac systems also require shorter ducts.
I am finishing my basement in my 2 story 50 year old home.