Zephyr MUA010A Universal Make-Up Air Damper for 1200 CFM

The required amount of make-up air will vary for each home and the amount of exhaust ventilation provided within the home. As a general rule of thumb, Zephyr recommends sizing the make-up air damper as follows:
- One 6” damper for ventilation rated up to 600 CFM
- One 8” damper for ventilation rated up to 1000 CFM
- One 10” damper for ventilation rated up to 1200 CFM

No. The Zephyr Automatic Make-Up Air Damper may only be used with compatible Zephyr range hoods over 400 CFM.