This customer made sure that they meet the NFPA minimum of 40" above the roof line for the fan discharge. Nice grease drain.
NFPA requires that grease laden air be discharged at least 40" above the roof surface..... not adjacent landscaping. Notice the grease laden air deflector shield.
Most louvers will not pull in rain if the inlet velocity is less than 850 fpm. No guarantee is made however for 4 ft. tall snow banks.
Don't have a wall for your wall mounted exhaust fan? Purchase the extend-o-wall kit from most major fan manufacturers.
Relax, This is not a UFO. This is a fan supported on a sad old flue pipe.
They should have used a real sloped curb. Tilting a roof mount fan greatly reduces bearing life and structural integrity.
Here is a roof fan mounted on an extended, angled, non-vented, curb/sleeve/duct. You won't see this in NFPA. Not only will this fan fail in a fraction of its normal life, this is a fire hazard.
Backwards Discharge
Bucket Head
Call the factory for some advice
Curbless Fan
Dead End Discharge
Fan doubles as splash block
Fan Stand Flue Exhaust
Found Inside Unit
Grease Leak
Greasy grease fan
Greenheck SBE-48 mounted on base with rollers
VAV Box controls enclosure doubles as access panel
Supply Diffuser next to Elec Ceiling Heater
Window Access for Maintenance
R. L. Craig Company, Inc.
Since our formation in 1955, the R. L. Craig Company, Inc. has served the Kentucky and Southern Indiana areas in the application and sales of commercial and industrial heating, ventilation and related... Read more
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