Yes, over-the-stove microwaves, also known as over-the-range microwaves, typically require venting. These microwaves are designed to be installed above your cooktop or range, and one of their main functions is to serve as a ventilation system for your cooking area.
The venting in over-the-stove microwaves serves two essential purposes:
Steam and Odor Removal: When you cook on your stove, steam, smoke, and odors can be generated, especially when frying or cooking foods with strong aromas. The microwave's venting system helps to capture and remove these airborne particles from your kitchen, improving air quality and reducing cooking odors.
Heat Dissipation: Cooking on a stovetop generates heat, and having a microwave above the stove can potentially expose the microwave to excess heat. The venting system helps dissipate this heat, preventing potential damage to the microwave and ensuring it operates efficiently.
Most over-the-stove microwaves come with two venting options:
External Venting (Ducted Venting): In this configuration, the microwave is connected to an external duct or vent that leads outside your home. The vented air, along with steam and odors, is directed outside, effectively removing them from your kitchen.
Recirculating Venting: If external venting is not possible or practical in your kitchen, some over-the-stove microwaves can be set up for recirculating venting. In this mode, the microwave pulls in the steam and odors through a filter, and then the filtered air is released back into the kitchen. While this option is not as effective as external venting, it still helps improve air quality to some extent.
The choice between external and recirculating venting depends on the layout of your kitchen and the feasibility of installing ductwork to the outside. External venting is generally more efficient at removing cooking byproducts, but it might require professional installation and modification to your kitchen structure.
Before purchasing an over-the-stove microwave, consider the ventilation options available in your kitchen and choose a model that suits your needs and meets safety requirements for proper ventilation. Additionally, it's essential to follow the manufacturer's installation instructions carefully to ensure safe and effective venting of the microwave.