Attic Hvac Ductwork

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.

Attic hvac ductwork.

According to the us department of energy the average hvac duct system is only about 60 percent efficient. 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. However an attic in pensacola florida is likely to have a humidity level closer to 100 and the risk of condensation on ductwork would then go up quite a bit. Ted also has inherited a powered attic ventilator.

The unconditioned space also houses his hvac system. The costliest are sheet metal ducts running in enclosed walls and ceilings. 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. Let s take a look at the reasons why it is a good idea to have your system installed in the highest room in the house.

Attic hvac units are potentially inefficient the biggest complaint about attic hvac units is that they don t really make sense. In many cases the attic is an ideal location to have your hvac system installed. Attics are for the most part unconditioned meaning a leak here could significantly reduce your home s overall efficiency. The air ducts for a central hvac systems are typically located above a home in the attic or upper crawl space or underneath a home in the space between the foundation and the floor so you don t see them unless you have cause to replace them.

Throw duct leakage into the mix and the problems are even worse. The ducts are the veins of the hvac system circulating air throughout a house. Hot and cold spots drafts and stuffy air in your space due to impeded air flow. Install ductwork so that it is in direct contact with i e laying on the ceiling and or truss lower cords.

That means air is not flowing through your space and your hvac system as it should be which leads to all kinds of undesirable consequences including. Ductwork running along an open ceiling in the basement of a one story home is also more affordable to replace. Ted has more than a few cobwebs in his attic. With hundreds of square feet of ductwork surface area in the attic and a δt of 75 f the air coming out of the vents in your home will be significantly higher than 55 f.

Because the average humidity level is 10 20 in phoenix. Type of ductwork system the least expensive duct system is a radial system of flexible ducts in an attic running to ceiling grates.