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Make-Up Air Unit

Our complete line of indoor and outdoor make-up air units gives you a broad range of options to meet your needs. Our duct furnaces can be ordered with several different options so it fits your specific requirements. Several options are also available for the outdoor and indirect indoor make-up air unit. In addition, our indoor/outdoor direct-fired make-up air unit is an efficient way to supply tempered make-up air to your space.


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  • Direct Indoor/Outdoor MUA (MDB/MRB)

    Direct Indoor/Outdoor MUA (MDB/MRB)

    Designed to provide an economical and efficient means of supplying tempered make-up air, our direct-fired, make-up air units are available in eight airflow configurations.

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  • WeatherHawk Indirect Outdoor MUA (H-Series)

    WeatherHawk Indirect Outdoor MUA (H-Series)

    WeatherHawk indirect outdoor make-up air systems are designed and engineered to deliver superior performance in a variety of applications.

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  • Indirect Indoor Separated Combustion MUA (DBS/DCS)

    Indirect Indoor Separated Combustion MUA (DBS/DCS)

    The Modine indoor separated combustion duct furnace with blower and/or cooling sections was designed for use with a building’s heating, heating/ventilating/cooling and make-up air systems.

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  • Indirect Indoor Gravity MUA (DBG/DCG)

    Indirect Indoor Gravity MUA (DBG/DCG)

    The indoor gravity vented duct furnace with blower and/or cooler sections was designed for use with a building’s heating, heating/ventilation/cooling make-up air systems.

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