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Today's Hours 8am - 11pm estDirect Gas Fired Heating Equipment provides fast, energy efficient heating by delivering clean, warm air directly into the space. Ideal for warehouses, manufacturing facilities, and large commercial buildings, these systems offer dependable comfort while helping reduce overall heating costs.
Powerful, Efficient Heating for Large Industrial & Commercial Openings
The Hartzell Direct Gas Fired Door Heater is a high-output, energy-efficient heating solution for large doorways, loading docks, and open industrial entrances where heat loss is common. Using direct gas-fired technology, it delivers immediate, targeted warmth to offset incoming cold air and maintain interior comfort without long warm-up times. Engineered by Hartzell Air Movement, this unit combines dependable performance, durable construction, and efficient heat delivery for demanding environments.
The compact yet rugged profile allows for easy wall or ceiling mounting near entrances, dock doors, warehouse openings, and high-traffic areas, providing a reliable heat source where traditional HVAC systems can’t respond quickly enough. With integrated safety features and optimized heat distribution, this unit helps improve occupant comfort, reduce energy waste, and maintain productivity even as doors cycle open and closed throughout the day.


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