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Make-Up Air Systems

Heating Solutions for Replacement Air

Support ventilation, pressurization, and code driven airflow needs.

Make-Up Air Systems

Heating Solutions for Replacement Air

Support ventilation, pressurization, and code driven airflow needs.

Why Engineers Specify Electric Make-Up Air

Simplifies Integration

Electric heat tempers outdoor air without gas piping or combustion venting.

Precise Control

Staged or modulating heat options help match airflow, load, and comfort needs.

Efficient & Code Ready

100% efficient electric heating supports electrification and ventilation goals.

Reliable Performance

Durable equipment built for steady operation in demanding commercial systems.

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Find the right electric heating solution for your airflow needs.

Make Up Air Units

MMAU Series

Compact Plenum Rated Make-Up Air

120, 208, 240 volt

1,500 to 7,500 watts

The MMAU replaces air removed by exhaust systems with tempered 100% outdoor air, helping maintain balanced building pressure and indoor comfort in residential and light-commercial applications.

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MAU Series

Plenum Rated Make-Up Air

208, 240, 480V volt

3,800 to 34,500 watts

Looking for fresh air? Exhaust systems are often very powerful, removing thousands of cubic feet of air per minute. When air is removed from your kitchen, it needs to be replaced with fresh air. King's Made in USA Make-Up Air Unit is a smart solution.

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