Installing Make Up Air Vent

I saw your video on make up air.

Installing make up air vent.

The fireplace has a fresh air vent in the hearth. Many kitchen fans move air at a rate of over 1000 cfm. I m installing skuttle s model 216 6 6 damper control and exterior intake vent. According to section m1503 4 of the international residential code you should install a make up air system with motorized controls if your exhaust fan is rated at 400 cfm or higher.

Kitchen ventilation is vital to the functionality of your unit as a whole and without making up air for the exhaust to use you could be left with some serious damages. There just isn t enough air leaks in the house to provide the make up air so in order for the exhaust fan to do its job we need to provide a duct for make up air. I ve got both a fireplace and a free standing wood heater spaced 15 feet apart from one another in my open kitchen and living area. What is make up air and how to install a unit.

Intake vent for makeup air what height from the ground be aware of blockages randy king who s in need of makeup air in madison wi wrote. Make up air vent is the same thing as a fresh air intake vent. What is make up air and how to install a unit. Providing makeup air cec and bsc resources as a general warning on providing makeup air in general you want to let the warm plume of air rising off the cooking surface rise into the hood to be exhausted.

Introducing lots of makeup air too close to this plume will disrupt it and often result in worse capture efficiency. Today yale s private hood series comes with act technology offering you a make up air compatible hood selection at 390 cfm. There s a general consensus among those in the know that makeup air is needed any time a kitchen exhaust fan rated over 300 cfm is installed however that s not exactly true. However if your kitchen exhaust vent is whining and sputtering it might be time to install a make up air unit.