Make-Up Air Control and Diffuser provide fresh air and combustion air

Make-Up Air Control Model 216

216T_no background_2

The Skuttle Model 216 Self-Adjusting Make-Up Air Control is installed on the return air plenum of the furnace. Six-inch insulated flex duct connects the Make-Up Air control to a screened, fresh air inlet mounted on the outside of the home.

When the furnace blower operates, the damper in the Make-Up Air Control opens, automatically pulling the outside air into the furnace. The air is cleaned by the filter, heated or cooled, and circulated through the duct system.  As a result, a slight pressure builds up in the home, preventing unwanted air infiltration around windows and doors.

Visit the Tech Lit Downloads page for installation instructions and tech sheet.

D286 Diffuser ColorModel D-28-6 Make-Up Air and Combustion Air Diffuser

The Skuttle Make-Up Air and Combustion Air Diffuser supplies supplementary combustion air to appliances [furnaces, dryers, etc.] with inadequate combustion air sources.

Generally installed 12 inches from the appliance’s combustion air intake, the Diffuser connects to a 6-inch insulated duct, which in turn, connects to a screened, fresh air inlet mounted on the home’s exterior.

As the colder, heavier outside air enters the Diffuser, the unit acts as a check valve or cold air trap, automatically diffusing auxiliary combustion air into the area around the appliance.

Visit the Tech Lit Downloads page for installation instructions and tech sheet.