What calculation method can be used to determine the make-up air needed for exhaust fans?
The minimum amount of make-up air must be 40% of the total exhaust. Size the duct considering the maximum flow-rate conditions specified on our HVAC Installations page.

Show All Answers

1. Can I install an outdoor heating device such as a wood burner, corn burner, pellet burner or similar?
2. What calculation method can be used to determine the make-up air needed for exhaust fans?