new fire station: domestic or commercial kitchen exhuast required

[mtlogcabin]

we are providing a large kitchen with high end commercial grade appliances

The OP stated commercial cooking appliances will be installed. I bet insurance will not payout if a fire was caused by cooking if a code compliant hood is not installed
He needs to install light duty appliances and the kitchen needs to be part of the R-2 area of the fire house to CYA IMHO


507.2 Where required.
A Type I or Type II hood shall be installed at or above all commercial cooking appliances in accordance with Sections 507.2.1 and 507.2.2. Where any cooking appliance under a single hood requires a Type I hood, a Type I hood shall be installed. Where a Type II hood is required, a Type I or Type II hood shall be installed.

Exception: Where cooking appliances are equipped with integral down-draft exhaust systems and such appliances and exhaust systems are listed and labeled for the application in accordance with NFPA 96, a hood shall not be required at or above them.

507.2.1 Type I hoods.
Type I hoods shall be installed where cooking appliances produce grease or smoke as a result of the cooking process. Type I hoods shall be installed over medium-duty, heavy-duty and extra-heavy-duty cooking appliances. Type I hoods shall be installed over light-duty cooking appliances that produce grease or smoke.

Exception: A Type I hood shall not be required for an electric cooking appliance where an approved testing agency provides documentation that the appliance effluent contains 5 mg/m3 or less of grease when tested at an exhaust flow rate of 500 cfm (0.236 m3/s) in accordance with Section 17 of UL 710B

HEAVY-DUTY COOKING APPLIANCE. Heavy-duty cooking appliances include electric under-fired broilers, electric chain (conveyor) broilers, gas under-fired broilers, gas chain (conveyor) broilers, gas open-burner ranges (with or without oven), electric and gas wok ranges, and electric and gas over-fired (upright) broilers and salamanders.

 

[Builder Bob]

Best answer - It Depends ----- check with your AHJ

 

[Tim Mailloux]

To provide some closure to this thread, we are proposing to install a high end professional grade residential stove along with a residential range hood that has a UL300A approved fire suppression system. Per the 2015 IMC commentary its my opinion that a commercial grade type 1 hood is not required in this instance, but we are installing a hood with fire suppression anyway as a best practice / belts and suspender situation. The final call will be with the local Building Official and we very well may end up with a type 1 hood at the end of the day.

https://www.denlarhoods.com/our-products/d1000

 

[Mr. Inspector]

Good idea. Let us know what the locals are requiring.

 

[Builder Bob]

maybe the design of the commercial parking garage separated by a four hour fire wall to have a dwelling unit would allow several benefits - No sprinkler system for garage, the dwelling unit area could be protected by NFPA 13 R, and a hybrid guardian or denlar residential system with suppression and interconnection to electrical or gas shut off.

Not a full blown commercial grade type I hood system with fire suppression but a stouter residential hood system with fire suppression features.

Great Idea, let us know what the out come is....