Hvac Ducts In Attic

Install ductwork so that it is in direct contact with i e laying on the ceiling and or truss lower cords.

Hvac ducts in attic.

The ducts are the veins of the hvac system circulating air throughout a house. 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. This flat pan catches the water underneath. Having it installed in the attic ensures that it is 100 percent protected from flooding caused by plumbing leaks and overflows.

Sometimes the hvac system winds up in the attic because it s the last thing on the home designer s list. 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. 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. The duct insulation should include a vapor barrier cover.

Attic hvac units are potentially inefficient. 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. Attic hvac systems also require shorter ducts. Type of ductwork system the least expensive duct system is a radial system of flexible ducts in an attic running to ceiling grates.

Ted has more than a few cobwebs in his attic. When your air filter is clogged with dust and dirt it can quickly migrate to the condensate. By the time the hvac unit gets planned putting it in the attic is the only thing that makes sense especially cost wise. Use metal flex or fiber board ducts that are insulated to code.

R 8 duct insulation 5 227 btu hour. Keep your hvac air filter clean. Ted also has inherited a powered attic ventilator. Looking at the cooling side only the additional load would be.

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. The costliest are sheet metal ducts running in enclosed walls and ceilings. Install ductwork so that it is in direct contact with i e laying on the ceiling and or truss lower cords.

Ductwork running along an open ceiling in the basement of a one story home is also more affordable to replace. Why installing ductwork in the attic above an in law suite is necessary ductwork is necessary for an in law suite because without it there s no way for the air that s warmed or cooled by your furnace or air conditioner to reach that space. 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. All the ducts are in the attic.

The unconditioned space also houses his hvac system.