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Add an In-Line Duct Booster for Home Air Conditioning Units

If you have forced-air cooling but there’s still a room that’s hotter than all the rest, a duct or vent booster fan can increase the flow of cool air into that room. Two types of booster fans are available. An in-line duct booster fan (shown) fits inside the duct of the room you’re trying to cool. You mount the fan near the outlet and it automatically kicks on when your cooling system runs.

Vent and register booster fans sit directly on top of or replace ceiling, floor or wall registers. Depending on the model, you can set it to operate automatically, control it with a switch or operate it by a remote control.

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Quiet a Noisy Air Conditioner

If you already have a newer condenser, the worst noise is probably coming from the compressor. (Fans on newer units are very quiet.) One of the most common fixes for a noisy air conditioner is a sound blanket. Contact the manufacturer to find a sound blanket for your model or buy a universal blanket. Installation is easy. Don’t bother putting a blanket on an old unit—you’ll still hear the noisy fan. Here are a few tips to fix a noisy AC.