Cold Air Return Duct Fan

Nail a piece of sheet metal onto the back of a stud cavity.

Cold air return duct fan.

For the system to work you have to re circulate the air back to the furnace. You ll still know your system is working. If you live in a home that has rooms that are either too hot in hot weather or are cold in cold weather you could have a return air duct issue. Visual inspection for prior attempts to improve return air such as holes cut into an existing return air duct or worse openings cut to admit more makeup air into the air handler from an un conditioned space such as an attic or crawl area.

And since less air is moving through your ducts noise levels are lower sometimes dramatically so. A mismatch in return air inlet grille or duct size will reduce the system s effectiveness. After all it s pretty obvious whether you re comfortable or not. Yes if your house is either hot or cold i ll bet you have inferior or lacking return air ducts.

A duct booster fan most people just call them booster fans is a device that you can attach to your hvac system s ductwork. Install a duct booster fan with pressure switch or linked to main blower on the vertical rise of the trunk line that supplies the upstairs rooms should pull more air upstairs and give it the extra push it needs to overcome the distance rise to the second floor bends and undersized ducts and still throw the air into the rooms to mix well. Return air ducts are necessary for just about every room. Return and supply fans are sometimes used in large buildings due to the sheer volume of air movement required.

For residential they are a waste when better duct system design sealing and installation will most often deliver vast improvements over band aid attempts like booster fans. The fan speed varies depending on the cooling or heating load but the fan operates at lower speeds most of the time. Return vents also provide air circulation. Air vent covers block air coming from registers forcing air to redirect to other areas.

That is why you need a cold air return image 1. Every building that uses forced hot air for heating will have cold air return vents. That would then reduce the flow of conditioned air to that space. A cold air return vent is necessary for optimal functioning of your heating system.

They do precisely what the name implies. Menards offers a wide range of ductwork pipe and fittings to help your ductwork systems run efficiently these products are used for warm air return supply and exhaust systems. If you had no return air in your room you would create a positive pressure. Flexible duct can be installed in place of galvanized pipe in many applications if allowed by your local hvac codes.

In addition its flexibility allows for easier installation in hard to reach areas. A vent cover also increases energy efficiency and some feature a magnetic design for easy installation.