Installing a duct booster fan can help get more air flow to the problem rooms. Duct booster fans are designed to fit into the ducts (round or rectangular) near the furnace blower.

Installing the booster fan Install the fan If the duct is a standard size, remove the register and drop the fan into the boot. Secure it to the floor on each side with screws.

Tjernlund Products’ Duct Booster Fans are designed for easy installation within heating and cooling ducts to increase the flow of conditioned air to desired areas.

Photo Courtesy of SuncourtThis small controller mounts on the duct and automatically starts the duct booster fan when the main blower starts. Q. We have a problem keeping several rooms comfortable ...

Duct Booster® register booster fans can help homeowners increase comfort in rooms that are uncomfortably hot or cold because their forced-air furnace/air conditioner blower cannot provide adequate ...

Less powerful (and cheaper) booster fans are more prone to rattling. Booster fans may not make a significant cooling difference if your ductwork or overall cooling system is inefficient, sized ...