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Question DetailsAsked on 9/26/2014

who installs a damper in a cook top exhaust fan?

cold air coming in from cook top exhaust fan.

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Heating and A/C is your Search the List category - this falls in the Ventilating part of HVAC (Heating, Ventilating, and Air Conditioning). A handyman could do it too, if you trust him to seal (and insulate if needed) the duct correctly in the process.

If it does not have a flapper in the roof or wall hood, then maybe that is what you need - most over-stove units have a built-in flapper plus one in the roof or wall-mounted hood, which between them do a pretty fair job of stopping cold air infiltration.

Before you call for help, remove the filter element and look in the airway with a flashlight - may be you have one inthe fan unit and it is just greased up so it stuck open. If so, turn off the breaker to the unit and make sureit is off by trying to turn it on, then (assuming you can reach it) use windex or a degreasing detergent like dawn (easy on the liquid) to remove as much grease and lint as you can to free it up.

Answered 6 years ago by LCD

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