Commercial Kitchen Hood Exhaust Duct Size

If your conditioned air whether heated or cooled is getting pulled out of your facilities at a rate of 2000 cfm or greater it will cost you allot more money in the long run than the initial cost of a mua fan.

Commercial kitchen hood exhaust duct size. The general size and rule of thumb for mua is a 6 hood or larger or 2000 cfm or more of exhaust flow. 2 5 wide stove x 100 250 cfm minimum range hood fan size. Hvac duct size calculator excel. Minimum duct size of 7 recommended duct size of 8 10.

The difference between the inside cross sectional dimensions of overlapping sections of duct shall not exceed 1 4 inch 6 4 mm. This design guide reviews the fundamentals of kitchen. Excel sheets for the design of and sizing of kitchen hoods. Minimum duct size of 4 recommended duct size of 6 401 600 cfm.

These excel programs are used in sizing exhaust hoods air volume flow and capture velocities free exhaust hood calculator. So if you have a 30 wide stove you would need a range hood with a fan that moves at least 250 cfm of air. The minimum duct sizes and recommended duct sizes based on a hood fan s cfm rating are as follows. 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.

With the calculation sheets below you will be able to design the kitchen hoods according to ashrae and greenheck. Note that not both exhaust fans are required for hood exhaust. Are you interested in representing captiveaire and selling our products. Please fill out the following form and we will contact you soon.

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 length of overlap for overlapping duct joints shall not exceed 2 inches 51 mm. 16 2 please refer to the duct diameter sizing chart by hood size and cfms. A 0 to 400 cfm fan requires a 4 inch minimum duct size but a 6 inch duct is recommended.

View the kitchen exhaust duct sizing chart below to determine your ductwork diameter based on range hood cfm. Minimum duct size of 6 recommended duct size of 8 601 900 cfm. Read on to determine how to size your exhaust and supply fans.