Applied Air Systems

Applied Air was formed in the 1960’s as National Heater Company in St. Paul, Minnesota. The company designed and manufactured rooftop air handlers and heating equipment for commercial and industrial applications. The company has enjoyed steady growth and has become an innovative leader, providing heating and cooling equipment to the distribution and manufacturing community. Acquired by Mestek in 1986, Applied Air today manufactures a wide variety of cooling and heating HVAC products including direct-fired heating, makeup air units, and air turnover systems.

Air turnover units provide uniform air distribution and prevent air stratification without ductwork.  The modular design of the ductless ATO allows for flexible ...

Applied Air was formed in the 1960’s as National Heater Company in St. Paul, Minnesota. The company designed and manufactured rooftop air handlers and heating equipment for commercial and industrial applications. The company has enjoyed steady growth and has become an innovative leader, providing heating and cooling equipment to the distribution and manufacturing community. Acquired by Mestek in 1986, Applied Air today manufactures a wide variety of cooling and heating HVAC products including direct-fired heating, makeup air units, and air turnover systems.

Direct fired units heat or cool large or small spaces with 100% combustion efficiency.  They constantly replace contaminated indoor air with fresh, tempered ...

Applied Air was formed in the 1960’s as National Heater Company in St. Paul, Minnesota. The company designed and manufactured rooftop air handlers and heating equipment for commercial and industrial applications. The company has enjoyed steady growth and has become an innovative leader, providing heating and cooling equipment to the distribution and manufacturing community. Acquired by Mestek in 1986, Applied Air today manufactures a wide variety of cooling and heating HVAC products including direct-fired heating, makeup air units, and air turnover systems.

Indirect gas fired systems heat large spaces without products of combustion in the supply air.  The units can be mounted indoor, outdoors, or on the roof.  ...