Smoke vents are one way to keep steam, smoke and heat out of your kitchen. A smoke vent, or range hood vent, is installed above a stove. It has internal fans that are positioned to draw air away from the stove to prevent warm, smoky air from spreading throughout the kitchen. The size of your smoke vent depends on the size of your stove and how much heat it distributes. The vent size refers to the power that it possesses. Cubic feet per minute (CFM) is the pressure of the air that flows through the vent. Determine vent size by making a few calculations.
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Things you need
- Stove owner's manual
Determine the number of watts for each of your burners. You can find this in the owner's manual.
Add together the watts for each of your burners to get the total wattage for your range.
Convert the wattage to British thermal units (BTUs). Do this by multiplying the wattage by 3.5.
Calculate CFM air output needed for your smoke vent. Do this by dividing the BTUs by 100. The result will be the number used when deciding what size smoke vent to purchase.
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