Once you ve calculated your cfm based on the above points you re also going to want to add 9 cfm for a 9 duct and 25 cfm for every.
Kitchen hood vent 900 cfm. If the range hood is attached to a wall you should have 100 cubic feet per minute cfm per linear foot. Home cooks that do a lot of high heat searing and find themselves battling smoke will appreciate the extraction capabilities of this fan but more routine cooking tasks will benefit from the low and medium power fan settings. 6 to 8 duct 400 to 600 cfm. Ekon nap03 36 wall mounted stainless steel curved glass kitchen range hood island hoods 900 cfm 4 speeds touch control with remote and lcd display 2 pcs 3w led lamp 2 pcs baffle nap03 36 4 2 out of 5 stars 82.
When using smooth round 8 diameter metal pipe add one cfm per foot of pipe plus 25 cfm for each elbow and 40 cfm for a roof cap. Cosmo qs75 30 in under cabinet range hood 900 cfm ducted ductless convertible duct wireless kitchen stove vent with led light 3 speed exhaust fan timer permanent filter stainless steel. A kitchen with a volume of 1200 cubic feet 34 cubic meters would need a range hood with a rating of 1200 4 or 300 cfm. Bv range hood 30 inch 900 cfm under cabinet seamless stainless steel kitchen range hoods dishwasher safe baffle filters w led lights ducted kitchen exhaust fan hood 4 2 out of 5 stars 149 329 99 329.
Cosmo 63175 30 in wall mount range hood 760 cfm ductless convertible duct kitchen chimney style over stove vent led light 3 speed exhaust fan permanent filter stainless steel 4 3 out of 5 stars 217. The size shape length turns and cap on the range hood ductwork adds resistance which reduces the amount of air the vent fan can move requiring additional cfm for the fan. 7 to 10 duct 700 to 900 cfm. Iktch 30 inch built in insert range hood 900 cfm ducted ductless convertible duct stainless steel kitchen vent hood with 2 pcs adjustable lights and 2 pcs baffle filters 4 8 out of 5 stars 6 299 00 299.
Divide the total volume by 4 to get the required cfm rating. This stainless steel range hood packs up to 900 cfm and can handle even heavy smoke and odors. Add more based on ductwork. 8 to 12 duct 900 to 1200 cfm 10 and up duct 1200 and higher cfm.
The size of the cooking surface the amount of heat produced by the cooking surface and the volume of the kitchen.