The vents on a wall bathroom heater can be cleaned with a mixture of dish detergent and water, or by spraying vinegar or mildew removal cleaners on the vent and rinsing it with warm water. A vacuum hose with a brush removes lint and dust on the vent as well.
Homeowners should begin the cleaning process by unscrewing the vents on a wall bathroom heater and removing the vent from the air duct. A ladder may be necessary to reach wall vents on the ceiling or located at the top of the wall. Using a vacuum hose, the first step is for homeowners to vacuum dust, lint, dirt and debris from the air duct and the vent.
Once dust particles have been removed, the vent should be wiped down with a cloth dipped in warm water and dish detergent. If build up or tough stains are present in the air duct or on the bathroom vent, it may be necessary to spray it down with vinegar and rinse with warm water. If mold or mildew is present, individuals should wear a protective mask, and apply mold or mildew removal solutions, as directed by the manufacturer of the cleaning solution. Once the vent dries, it can be screwed back into the wall.