Hvac Ducts In Attic

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.

Hvac ducts in attic.

Looking at the cooling side only the additional load would be. By the time the hvac unit gets planned putting it in the attic is the only thing that makes sense especially cost wise. If you ve studied heat transfer at all you may recall that the rate at which heat moves from a warmer to a cooler body depends on the temperature difference which we abbreviate as δt. An attic can get up to about 130 f in the summer and the conditioned air entering the ducts is about 55 f or so.

Keep your hvac air filter clean. Ted has more than a few cobwebs in his attic. Mold in air ducts. All the ducts are in the attic.

The ducts are the veins of the hvac system circulating air throughout a house. The duct insulation should include a vapor barrier cover. Install ductwork so that it is in direct contact with i e laying on the ceiling and or truss lower cords. Attic hvac units are potentially inefficient.

Ductwork running along an open ceiling in the basement of a one story home is also more affordable to replace. Sometimes the hvac system winds up in the attic because it s the last thing on the home designer s list. The unconditioned space also houses his hvac system. This flat pan catches the water underneath.

Attic hvac systems also require shorter ducts. Use metal flex or fiber board ducts that are insulated to code. When hvac ducts are installed in a vented attic in any climate encapsulate the hvac ducts in attic insulation to protect them from temperature extremes in the unconditioned attic space. R 8 duct insulation 5 227 btu hour.

Install ductwork so that it is in direct contact with i e laying on the ceiling and or truss lower cords. When your air filter is clogged with dust and dirt it can quickly migrate to the condensate. Leaks and overflows on a given floor will seep through the floors to affect everything below it including your hvac system. According to rightsuite the software we use the supply ducts have about 560 square feet of surface area and the return ducts 101 square feet.

Ted also has inherited a powered attic ventilator. 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. Make sure your condensate drain pan under your air conditioning unit is not collecting sitting water. Having it installed in the attic ensures that it is 100 percent protected from flooding caused by plumbing leaks and overflows.

Your hvac system will require shorter ducts.