How does a recirculating range hood work?

A recirculation hood extracts the air, filters it, and blows it back into the kitchen. The air is circulating. That’s why it’s called ‘recirculation range hood’. There are carbon filters in the range hood.

To meet the recommended CFM requirements, you’ll need a range hood with 250 CFM. Island hoods 150 CFM for every linear foot of cooktop. Due to the open nature of a kitchen island stove, you need extra power. As a general rule of thumb, for the same 30 cooktop, you’ll need a range hood with 375 CFM.

A recirculating OTR microwave uses charcoal filters to neutralize air before it is pumped back into your kitchen. Ducted range hoods connect to ductwork to pump air outside your home. Compared to ductless range hoods, they are more efficient and effective at neutralizing air.

Over-the-range microwaves are a very popular choice for many contemporary kitchens. They’re a space-saving, practical and streamlined appliance that offers excellent cooking and venting performance. If you’re looking for another option, built-in microwaves are also very popular.

1-1 of 1 Answer The National Kitchen and Bath Association recommends that the bottom of the microwave should be no higher than 54 inches above the floor, which would allow for 18 inches of clearance between the microwave and the typical cooktop height of 36 inches.

No, you should never vent your range hood into the attic. The excess buildup of grease and moisture in your attic will ruin it and over time may cause mold damage. Instead, vent your hood through an interior wall or through the ceiling all the way outside of your home.

A recirculating venting microwave, or ductless range hood, is a built-in ventilation system that recycles air through the microwave vents. The recirculating ventilation pulls the air through charcoal filters or other types of filters.

The fans in most over the range microwaves are between 300-400 cubic feet per minute (CFM) venting power. This may or may not be adequate for your stove and kitchen space.

Although the international CFM code for range hoods is 100CFM, some local authorities allow for range hoods with slightly lower or higher CFM than this, depending on the type of your cooking, and the square footage of your cooktop.

Convertible means it can vent through the wall or ceiling using a duct, or can be converted to non-venting (filters the air and blows it back into the kitchen) with Recirculation Kit Part Number W10294733 which is available from your dealer or an authorized parts distributor.

1-4 of 4 Answers The vent is on the top rear as with most over the range microwaves. You can vent it traditionally (ie to an outside vent) or recirculate it, which means just that–the air recirculates as opposed to being vented outside. There is an air filter used for this that comes with the unit.