Central Ac Return Air Duct

Ductwork design mistake 5.

Central ac return air duct.

How much is the under sized return air duct reducing the efficiency of my new 95 furnace. Not only do return air vents maintain your home s air pressure and filter out debris they can also serve to save you on energy costs and expenses which is important here in hot and humid gainesville fla. The air return duct is 12 x 19 228 sqin about 2 3 the area of the factory recommended air filter 14 x 25 350 sqin. If you live in a house that doesn t have dedicated return vents in the bedrooms and there s also no hint of jumper ducts or transfer grilles you have another option.

A return vent sucks in air and delivers it to the heating air conditioning system to be treated. Item 1790033 model 1790033. What s worse that central return pulls the carbon monoxide into the air handler and distributes it to the bedrooms. What about noisy heat pump operation.

Supply air from furnaces and air conditioners should be on outside walls. Is our heat pump return register too small. Size of air conditioner example. The treated air is then forced out of the air vents into the rooms of the house starting the cycle over again.

4 tons x 144 square inches return air duct in square inches. The return air vent openings need to be on the opposite side of the room so the conditioned air is pulled across the room. Use the following formulas. Typically we cut into your ceiling near the door install a duct above the room run it through your attic and install the other end in the hallway near the central return.

Lack of returns to maintain balanced air pressure and air movement your duct system needs return vents for air in the room to be pulled back into the hvac system. Your ac s return air vent is a critical component of an hvac system and serves several purposes. These ducts typically start with vent grates in the wall on the ceiling or in the floor. What s the best location for return air ducts.

It s called a jumper duct because it allows return air to jump from your room to the hall. Continue reading below our video of the day. Calculate the return duct size based on the air conditioner s size and the type of duct you are using. Not providing enough returns is a common ductwork design flaw that leads to comfort complaints.

Lambro rigiflex 4 in x 96 in aluminum semi rigid flexible duct. An air return duct is basically a concealed air passageway in a home or other building that acts as a channel for pumping air out of an enclosed room and into the air conditioning or central heating system.