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Kitchen exhaust fan height from stove. Instructions get a zero by frivolous orange ca this is a great fan it blows out all the stinky humid air quickly. In addition to the height of a range hood it is also important to consider the capture area of the range hood. For example since my kitchen is 350 square feet i would need a fan that must exhaust at least 700 cfm of airflow. Standard base cabinets are 34 1 2 high plus 1 1 2 for the counter top for a total of 36 which is also the height of a range.
Many experts simply measure the square footage of the kitchen floor and multiply that by two to arrive at the cubic feet per minute of output for the fan. Moreover code watcher advises that since 2009 the international residential code irc includes a section on air replacement for houses with active kitchen ventilation. It s also a safety concern if you re cooking on a gas stove which releases carbon monoxide. What is the formula for exhaust fan sizing.
Changing over the stove fans is something that you might have to do due to grease build up. The researchers at lawrence berkeley national laboratory. And it s somewhat noisy that s actually a good thing. Proper kitchen ventilation isn t just important for smells.
The illustration above shows a typical commercial kitchen application utilizing a roof mount upblast exhaust fan or wall mount upblast exhaust fan in conjunction with a supply fan. The capture area should be larger than the surface of the cooktop. Because ventilation requirements vary from state to state and even from city to city it s important to check with local. You save 96 58 59 the fan gets a five.
The range hood has a low capture efficiency unfortunately you can t go out and comparison shop based on this metric. Some state building codes do require mechanical ventilation such as an exhaust fan in the kitchen. Broan nutone 8210 8 vertical discharge and 7 inch round duct ceiling fan 210cfm. Note that not both exhaust fans are required for hood exhaust.
Change over the stove fans with help from a foreman for lighty contractors in this free video clip. Standard upper cabinets are 30 high and are installed 18 above the base cabinets. A stove that measures 36 inches from side to side should be paired with a 42 inch wide range hood. If the reading shows higher.
To calculate the fan sized needed for a gas stove combine the btu ratings for all the burners on your stove gas burners range from 5 000 15 000 btu per burner with an average of about 10 000 btu per burner and a total of about 40 000 for a standard 4 burner stove then divide by 100 to find the minimum cfm needed for a kitchen with a gas stove. Cracking a window or using a window fan can help but you may also want to consider buying a carbon monoxide meter especially if you don t have a window.