Rounding up to the nearest foot you would therefore need a 12 foot hood.
Commercial kitchen hood duct size.
Also the sheet provide the method for duct surface area and duct weight calculations.
Minimum duct size of 7 recommended duct size of 8 10.
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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.
Commercial kitchen equipment manufacturer.
If your hood is between 601 and 900 cfm you need a minimum duct size of 7.
Minimum duct size of 4 recommended duct size of 6.
Minimum duct size of 6 recommended duct size of 8.
If your hood is between 401 and 600 cfm you need a minimum duct size of 6.
State of the art stainless steel grease duct systems are nfpa 96 compliant designed to safely convey grease laden vapors from commercial kitchen cooking equipment.
The hood factor 3 the design process 6 selecting sizing exhaust hoods is the first design guide in a series that will help you achieve optimum performance and energy efficiency in your commercial kitchen ventilation system.
You should also keep in mind what the future may dictate in terms of additional or larger items.
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With the additional 12 inches may vary by local regulations for the overhang of the hood this comes up to 140 inches or 11 feet 8 inches.
Read on to determine how to size your exhaust and supply fans.
A range hood should be able to exchange the air in the kitchen at least 15 times per hour or every four minutes.
Note that not both exhaust fans are required for hood exhaust.
16 2 please refer to the duct diameter sizing chart by hood size and cfms.
16 wide x 16 long x 8 high 2 048 cubic feet.
For example if your kitchen is 16 long x 16 wide with an 8 ceiling it would contain 2 048 cubic feet of space.
A 0 to 400 cfm fan requires a 4 inch minimum duct size but a 6 inch duct is recommended.
14 2 15 6 to 20 0.
Excel sheets for the design of and sizing of kitchen hoods.
With the calculation sheets below you will be able to design the kitchen hoods according to ashrae and greenheck.