Hvac Ducts In Attic

The ducts are the veins of the hvac system circulating air throughout a house.

Hvac ducts in attic.

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. 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. Ductwork running along an open ceiling in the basement of a one story home is also more affordable to replace. Leaks and overflows on a given floor will seep through the floors to affect everything below it including your hvac system.

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. When your air filter is clogged with dust and dirt it can quickly migrate to the condensate. The unconditioned space also houses his hvac system. Ted has more than a few cobwebs in his attic.

R 8 duct insulation 5 227 btu hour. 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. Mold in air ducts.

The costliest are sheet metal ducts running in enclosed walls and ceilings. Keep your hvac air filter clean. Attic hvac units are potentially inefficient. The duct insulation should include a vapor barrier cover.

Ted also has inherited a powered attic ventilator. Type of ductwork system the least expensive duct system is a radial system of flexible ducts in an attic running to ceiling grates. Sometimes the hvac system winds up in the attic because it s the last thing on the home designer s list. Having it installed in the attic ensures that it is 100 percent protected from flooding caused by plumbing leaks and overflows.

Install ductwork so that it is in direct contact with i e laying on the ceiling and or truss lower cords. This flat pan catches the water underneath. 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. Your hvac system will require shorter ducts.

Use metal flex or fiber board ducts that are insulated to code. Make sure your condensate drain pan under your air conditioning unit is not collecting sitting water. 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. Looking at the cooling side only the additional load would be.

All the ducts are in the attic.