Door Heaters

Industrial door heaters are special heating systems made for factories, warehouses, car washes, construction sites, and other large commercial and industrial buildings.

They are typically used to heat large, high-traffic doors, such as loading dock doors, hangar doors, and garage doors, that are frequently opened and closed.

Most industrial door heaters have a heating element and a fan. These two parts work together to move warm air around the door. The heating element can be powered by electricity, gas, or propane, depending on the specific heater model and the needs of the facility.

Industrial door heaters are made to be strong and last a long time. They can handle the heavy use and rough conditions that are common in industrial settings.

They are often equipped with built-in thermostats, which allow the user to set and maintain a desired temperature, and safety features such as overheat protection to ensure safe operation.

The heaters can be mounted to the wall or ceiling and can be direct or indirect-fired, with direct-fired heaters blowing hot air directly onto the door and indirect-fired heaters blowing hot air into the space.

They are typically installed on the outside of the door, but they can also be placed on the inside.

We’ll be happy to help explain which door heater is best for your application.

Industrial door heaters can be beneficial to industrial facilities by:

Reducing energy costs by preventing warm air from escaping through open doors, and by preventing cold air from entering the building.
Improving the overall efficiency of the facility by allowing doors of buildings to be opened and closed more easily, reducing the time and effort required to move materials in and out of the building.
Improving the working environment by providing warmth, comfort, and safety for employees.

For high-speed, directional heated airflow, door heaters offer exceptional value. Automatic door heaters keep cold air from coming in when roll-top or overhead doors are opened.

Door heaters were designed and built to be very cost-effective, reliable, and flexible. It can heat 900 MBH and move 6,000 CFM of air. A nearly 100% efficient burner uses either natural or LP gas.

Automatic Door Install Configurations

A door heater can be mounted vertically just inside roll-top or straight-lift doors or mounted at an angle facing overhead doors. Connected to a door switch, the heater can automatically turn on and direct warm air toward the floor area near the door opening.

Key Features of Direct Gas-Fired Door Heaters

Durable Stainless Steel Construction
Weatherproof Electrical and Gas Control Enclosures • ETL Listed to Meet UL-508A
Remote or Door-Switch Controlled
Automatic Electronic Spark Ignition
Flame Rod Burner Supervision
Maxitrol 14 Discharge Temperature Controls
Diagnostic Circuit Check Lights
Direct-Drive Axial Fan with Inlet Guard
Easy to Install at Any Angle
Two-Year Parts/90-Day Labor Warranty

Door Heater Applications

Door heaters can be used in homes, commercial buildings, and industrial facilities, among other places.

They are typically used to heat garages, workshops, and other areas where large doors are frequently opened and closed.

They are often used in cold climates to keep frost or ice from building up on the outside of doors.

Door Heaters for Car Washes

Door heaters are beneficial for car washes in several aspects, such as:

Door heaters can help keep the wash bay warm, which can make the washing process more comfortable for employees and customers during cold weather.
They can lower energy costs by keeping warm air from escaping through open doors and keeping cold air from coming into the wash bay.
They can also make the car wash run more smoothly by making it easier to open and close the doors, which cuts down on the time and effort needed to wash a car.
Door heaters can also improve customer satisfaction by making the waiting area for customers warmer and more comfortable.

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Door Heaters for Construction Sites

Construction sites can use door heaters for a variety of reasons, including:

Maintaining a comfortable working environment for employees: door heaters can be used to provide heat to construction trailers, break rooms, and other areas where employees may spend time during the construction process.
Drying concrete and other building materials: Door heaters can be used to speed up the drying process of wet concrete, paint, and other building materials, allowing construction to proceed more quickly.
Thawing frozen ground: Door heaters can be used to thaw frozen ground prior to excavation or foundation work, making it easier to dig trenches, pour footings, and lay pipes.
Protecting workers and equipment from cold weather: Door heaters can be used to keep workers and equipment warm in cold weather. This can help prevent hypothermia, frostbite, and other injuries caused by cold weather.
Protecting delicate equipment: Door heaters can be used to protect delicate equipment, such as electronic instruments and tools, from the cold, which can cause them to malfunction.
Protecting materials from the cold weather: Door heaters can be used to protect materials such as paint, adhesive, and others from freezing.

For construction projects that take place only during certain times of the year, it is a great way to quickly warm up work areas and keep people working.

It is a flexible way to add low-cost comfort to outdoor events or emergencies during cold weather.

Industrial gas-fired door heater models are available that are made to be easily moved around and used on construction sites.

It also has a good fuel economy and works well for a long time.

Door heating models are available that have a heating capacity of 900 MBH and an airflow capacity of 7,000 CFM. It burns natural or LP gas and uses a single 20-amp 230/115/1/60 circuit. It will quickly warm large areas and maintain space temperatures.

Key Features

One-Person Easy Handling
Durable Stainless Steel Construction (Painted Aluminized Steel Available)
Field-Switched Power (230V or 115V)
Field-Switched Gas (Natural to Propane)
100% Efficient Maxon NP2 Burner
Weatherproof Control and Piping Enclosures
Automatic Electronic Spark Ignition
Flame Rod Burner Supervision
Non-Fused Disconnect (On-Off)
Integral space-temperature controls
Direct-Drive Axial Fan with Inlet Guard
Adjustable Airflow Switch
Two-Year Parts and 90-Day Labor Warranty

The housing is made of stainless steel, the controls are enclosed, and there is a fan screen guard at the inlet. An optional, lower-cost housing of painted aluminized steel is also available.

Advanced electrical controls include an airflow switch, a temperature stat, and the ability to choose 230V or 115V power in the field.

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Door Heater Manufactures

Providing Industrial Ventilation Equipment to the Following Industries

Providing Industrial Door Heaters to the Greater Chicago area and Nationwide

R. Williamson & Associates can provide you with fast quotes on the correct door heaters for your application.

We are official representative covering Illinois, Wisconsin, & Indiana.

We can also send out a trained specialist to assess the area and make certain the proper unit is being used for your specific application.

We run tests on-site to see how cost effective each model will be to assure maximum efficiency.