“Door Heater AbsolutAire DH90” has been added to your cart. View cart

Hartzell Air Door Heater - Commercial Door Heating

Name: Hartzell Air Door Heater | Above Door Heater | 79 Series
Brand: Hartzell Air
Price: 13250 USD
Availability: InStock

Hartell Air Series 79

Above Roll Up Door Heater

Original price was: $14,250.Current price is: $13,250.

847.674.0000

Call us Monday – Friday 8 am – 6 pm CST

Have questions? Need bulk pricing?

Please feel free to contact us for additional help with your selections and to discuss available discounts

* Non-standard delivery locations or off-loading methods may carry additional fees.
* See the shipping tab below for additional details

Direct Gas-Fired Door Heater Specifications
Fan Type	Direct Gas-Fired Door Heater
Air Flow	7,900 CFM
Heating Capacity	990,000 BTU
Phase	3 phase
Dimensions	33” x 28.25” x 34.25”
Weight	400 lbs.
Mount Location	Overhead
Fuel	Natural or LP Gas
Temperature Rise	116°F
Construction & Materials	Steel
Protection & Safety	Flame Safeguard & Limit Switch
Control & Operation	Remote or Door-Switch

Door Heater Video

This direct-fired gas door heater is designed for industrial facilities with frequent overhead door usage, specifically addressing temperature control challenges in shipping/receiving areas.

Operating with high-velocity heated air directed at door openings, it creates a thermal barrier by mixing with incoming cold air, effectively maintaining comfortable working temperatures and managing negative air pressure issues.

The unit comes as a complete kit with mounting flexibility for roll-up doors and includes critical options like gas pressure regulators, 30-second time-delay relays, and temperature-controlled activation, while being available in various sizes.

Shipping Information

Shipping policies vary depending on the manufacturer, as we work with multiple partners. Freight is typically included to a standard commercial or industrial address. However, deliveries to non-standard locations may incur additional costs.

Standard Delivery

A typical delivery location is one that can accommodate a semi-trailer truck with a standard 53’ trailer and has the means to offload the equipment. Equipment is generally delivered to the tailgate of the truck. The carrier does not unload the equipment unless prior arrangements have been made. It is the receiver’s responsibility to remove the equipment from the truck. If alternative delivery arrangements are required, they can be coordinated at the time of order placement.

Delivery Options

Liftgate Delivery: If you lack a dock or forklift to offload the equipment, it’s recommended to request liftgate delivery. This option ensures the carrier lowers the equipment to ground level.
Delivery Appointments: Delivery appointments or notifications before delivery are available. These options must be requested at the time of order and may involve additional fees.
Big City Delivery: Deliveries to downtown or congested urban areas may incur additional costs due to limited access.
Remote Area Delivery: Deliveries to remote locations may incur additional charges to account for the added transit time.
Residential Delivery: Deliveries to residential areas typically require a liftgate truck and may involve additional fees.
Redelivery: If delivery is attempted but not completed, redelivery fees will apply. The carrier does not automatically reattempt delivery without authorization.

Damages and Shortages

Visible External Damage: Document any visible damage on the freight bill or receipt and have it signed by the driver upon delivery.
Concealed Internal Damage: Inspect the equipment immediately upon receipt. Report any concealed damage to the carrier within ten days.
Shortages: Notify us within three days of receipt if there are any shortages.

Important: Always inspect freight upon receipt. Document any visible damage, take photos, and notify the delivery driver. You may also refuse delivery if the equipment is visibly damaged, and it will be returned to the manufacturer.

Hartzell Series 79 Direct Gas Fired Door Heater

Industrial Door Heater Performance

The Series 79 delivers up to 990,000 BTU heating capacity with airflow options of 6,500 or 7,900 CFM. Operating with precise temperature control, this system prevents cold air infiltration at industrial doorways.

The compact, self-contained design incorporates a 12-gauge rolled steel housing with integral mounting tabs.

Looking for less power? Check out the AbsolutAir DH90, DH60. We also carry Hartzell Door Heaters. Contact us for assistance on finding the best unit for your application.

Commercial Door Heater Safety Systems

This commercial door heater has dual blocking valve design with built-in pressure regulation, drip leg, and gas filter. Electronic flame monitoring system integrates gas pressure switches, high temperature control, and airflow proving switch. The industrial-duty fan motor features a solid-cast aluminum axial fan for reliable operation.

Technical Specifications

• Maximum heating output: 990,000 BTU
• Airflow capacity: 6,500 or 7,900 CFM
• Temperature rise capability: 116°F
• Unit size: 22″ – 24″
• Power: 115V valve system
• Operating pressure: 6″-8″ W.C. (24″ units), 5″-7″ W.C. (22″ units)

Overhead Door Installation Options

Versatile mounting configurations include 45° or 30° angled positioning for overhead doors and vertical mounting for roll-top applications. Easy access design simplifies burner maintenance and flame scanner cleaning. External flame scanner access enables quick service without unit disassembly.

Industrial Door Heater Warranty

Hartzell backs the Series 79 with an industry-leading five-year warranty. Custom design services are available for specific applications in the chemical, food processing, heavy industry, and transportation sectors.

Product Category: Controls

The Series 79 features integrated pressure regulation and temperature control systems, placing it in the Controls category for industrial ventilation equipment.

Share this Door Heater: