Hartzell Air Movement products

Temper cold air and keep indoor environments warmer for customers and employees with the Series 79 Gas Fired Door Heater from Hartzell. This direct-fired door heater mixes high-velocity heated air with the cold air that rushes in through open doors, tempering the air and making indoor environments more comfortable. Engineered for versatility, the gas-fired heater can be mounted at any angle between horizontal and vertical to satisfy most applications.