Pizza Oven Hood Exhaust Calculator
Exhaust hood airflow for a wood or gas pizza oven.
Enter your values
ⓘ Live results
Results
- Exhaust airflow
- 3,000 CFM
- Rate used
- 500 CFM/ft
- Makeup air (85%)
- 2,550 CFM
- Spark arrestor
- Required in duct/stack for wood-fired ovens
Quick answer
Wood-fired pizza oven hoods are commonly sized at 400-600 CFM per linear foot of hood opening due to the high, sustained heat and particulate load.
CFM = hood opening length x CFM per linear foot
How to use the Pizza Oven Hood Exhaust Calculator
- 1Measure the hood opening length over the oven mouth.
- 2Select gas or wood fuel — wood needs a higher rate and a spark arrestor.
- 3Provide makeup air at 85-95% of exhaust to keep the kitchen balanced.
Worked example
Using the values the calculator loads with:
Inputs
- Hood opening length6 ft
- Fuel typeWood-fired (500 CFM/ft)
Results
- Exhaust airflow3,000 CFM
- Rate used500 CFM/ft
- Makeup air (85%)2,550 CFM
- Spark arrestorRequired in duct/stack for wood-fired ovens
Frequently asked questions
Does a wood oven need a grease duct?
Yes, plus a spark arrestor and often a separate Class I chimney system per local fire code.
Can the same hood serve other equipment?
Only if it is rated for the combined heat and effluent load; wood ovens are often given dedicated hoods.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.