If you have a high-powered, commercial-quality cooktop installed in your kitchen, chances are you also have a makeup air unit installed in your home. This device compensates for the amount of air being pushed out of your kitchen’s extractor and breathes fresh, room-temperature air in from outside. Makeup air units are typically automatic—unless you had yours recently installed, you may not even know you have one, but you’ll notice if it breaks down.
If your cooktop comes with a large extractor hood that sweeps out odors and contaminants from your home, your makeup air system is what’s responsible for replacing the lost air. Without it, your home would be depressurized and the kitchen hood would soon be unable to push the air out. The fumes would collect inside your house—creating a dangerous environment for you and your family.
Fortunately, makeup air units are built to last, and if you take care to have yours regularly inspected you can catch any problematic developments before they seriously affect the device’s ability to function safely. Robert Tinsley of HPAC Engineering suggests biannual inspections for the best results. Have a certified HVAC technician examine the following:
The filters, fan wheels, burners and orifices of the device generally only need to be cleaned. They will work perfectly as long as they are not covered or clogged with debris.
It can be helpful to think of your makeup air unit as just one part of an overall kitchen ventilation system. If the unit is working perfectly but the kitchen extractor hood is filled with gunk and debris, it stands to reason that you’ll experience some unexpected results.
Cooking hoods are simple to clean, requiring no more than elbow grease and a good cleaning solvent. Most contain some kind of filter that requires regular replacement—make sure that it isn’t obstructed, and consult Cleanipedia’s guide for more specifics on keeping it grease-free. With both these appliances in good shape, your home’s interior air pressure should remain in perfect equilibrium.
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