Make-up air system

We are working to qualify Emerald Hill for, potentially, four stars in the the Austin Green Build program. It requires a make-up air system — when the exhaust hood over the cooktop is pulling fumes out of the house from the cooktop, the make-up system replenishes by pulling outside air into the house.

Above, the duct and motor and control unit for the make-up air system installed in the attic over the garage, connected to a duct run that penetrates the drywall to reach the kitchen.

This is the intake vent for the make-up air system, installed under the eave on the outside of the garage.
This is the intake vent for the make-up air system, installed under the eave on the outside of the garage.
This is the vent in the kitchen, over the side door, that delivers replacement air to the kitchen when the exhaust fan runs.
This is the vent in the kitchen, over the side door, that delivers replacement air to the kitchen when the exhaust fan runs.
Autin Air removed the chimney shroud above the exhaust hood. Components for the make-up air system are waiting behind the blue tape for installation.
Autin Air removed the chimney shroud above the exhaust hood. Components for the make-up air system are waiting behind the blue tape for installation.
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