Duct Work For Attic Furnaces

The attic ductwork is flex duct work.

Duct work for attic furnaces.

If it is not sealed properly then you are heating and cooling your crawlspace and or attic. Use metal flex or fiber board ducts that are insulated to code. Throw duct leakage into the mix and the problems are even worse. Different types of furnaces are manufactured to burn a variety of fuels including natural gas propane oil and firewood.

The duct insulation should include a vapor barrier cover. The master flow 4 in. It was new when the ac was put in 7 years ago. 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.

Flexible duct can be installed in place of galvanized pipe in many applications if allowed by your local hvac codes. Install ductwork so that it is in direct contact with i e laying on the ceiling and or truss lower cords. I called out the original hvac company and they took a look and said they saw no water. 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.

If you have leaky ductwork in your home or office then you are losing heat or cooling from your furnace or fan coil through the sides of it. Booster fans and accessories and whole house humidifiers can help make your existing ductwork system more economical. Air ducts lose a fair amount of heat through leakage so shorter lengths are more efficient. Recently i had another hvac company come out and put in a new bathroom vent and they told me they believed the duct work was full of water.

These devices are connected to ducts that deliver heated air to registers throughout the house. It will not require long lengths of pipe to deliver heat to the rooms as a basement furnace does. Most older homes have anywhere from 10 leakage clear on up to 35 40 leakage through ductwork. An attic furnace is closer to the upper stories of a multi level home.

Duct boosters efficiently improve air movement throughout your house which means your system can more quickly cool down or heat your home. Insulated flexible duct r6 silver jacket is used in standard heating and air conditioning hvac systems and some venting applications. In addition its flexibility allows for easier installation in hard to reach areas. The duct has r6 insulation which contains 33 more insulation than the standard r4 2 product.

The most common furnace fuel in the u s.