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  • 4 leading manufacturers
  • 20 additional suppliers
  • 15 states and provinces
  • 13 related categories
  • 2 guide sections
Source: IQS Directory database snapshotOur Methodology
Leading manufacturers
Listings in this category's Leading placements, shown first in IQS sequence order.
Additional suppliers
The category's other listings, shown on its Additional Companies page. Counted by listing.
States and provinces
U.S. states and Canadian provinces where the listed companies are located.
Related categories
Other categories IQS links from this one as related products or processes.
Guide sections
Sections in this category's industry guide.
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Door Heater Manufacturers and Suppliers

Play Door Heater Informational Video
Door Heater Informational Video

IQS Directory provides an extensive list of door heater manufacturers and suppliers. Utilize our website to review and source door heater manufacturers with our easy-to-use features which allow you to locate door heater companies that will design, engineer, and manufacture door heaters for your exact specifications. Our request for quote forms make it easy to connect with leading door heater manufacturers. View company profiles, website links, locations, phone number, product videos, product specific news articles and other production information. We are a leading manufacturer directory who will connect you with the right manufacturers whether you are looking for overhead door heaters, electric overhead door heaters, or over door heaters.

Suppliers located in GA, OH, CT +12 more states

Read the door heater guide
Contents (4 sections)

Leading Door Heater Manufacturers

Location

Showing all 4

Leading door heater manufacturers
Placement No.ManufacturerLocationContactActions
1

Backer Hotwatt, Inc.

At Backer Hotwatt, Inc., we dedicate ourselves to designing and manufacturing precision heating solutions that meet the demanding requirements of our customers across diverse industries. We specialize in creating high-performance infrared heaters, engineering each product to deliver reliable, efficient, and targeted heat where it is needed most.

LocationDanvers, MA
View Manufacturer
2

Glenro Inc.

At Glenro, we specialize in providing advanced solutions for industrial process heating, with a strong focus on infrared technology. We design and manufacture high-performance infrared heaters that deliver precision, consistency, and efficiency across a wide range of applications. Our systems are engineered to meet the demands of industries that require controlled heat for drying, curing, bonding, and forming processes.

LocationPaterson, NJ
View Manufacturer
3

Radiant Electric Heat, Inc.

Radiant Electric Heat is a manufacturer and supplier of infrared radiant heaters. Whether you are refurbishing or have a new project, we offer modern & attractive heating solutions. Our infrared products are also being used in many industrial process heating applications, as well as residential, commercial and office settings. We offer over 50 years of proven performance from our infrared heaters.

LocationBedford Heights, OH
View Manufacturer
4

Blasdel Enterprises, Inc.

At Blasdel Enterprises, we specialize in the design and manufacture of custom infrared heaters and industrial heat processing equipment. As a team of experienced engineers and problem-solvers, we take pride in delivering tailored thermal solutions that meet the exact needs of our clients across a range of industries.

LocationGreensburg, IN
View Manufacturer
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Leading door heater manufacturers are listed first on this page, each with a website preview and a Request a Quote button on its row.

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Additional Door Heater Companies

The category’s other door heater companies are listed on their own page, with location, phone and website where each supplier provides them.

View 20 Additional Door Heater Companies

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Quick Answers

How many door heater manufacturers are listed on IQS Directory?
4 leading manufacturers and 20 additional suppliers.
Where are door heater manufacturers located?
The listed suppliers are in 15 states: Georgia (4), Ohio (4), Connecticut (2), Michigan (2), New Jersey (2), California (1), Indiana (1), Maryland (1), and 7 more.
How do I get quotes from door heater suppliers?
Select suppliers in the table and choose Request Quotes. IQS reviews your request and forwards it to every supplier you select.

Door Heaters

2 sections

Door heaters provide a stream of heated air across frequently opened doors and entrances of buildings in order to create a barrier between the air outside and the air inside to avoid heat loss and unnecessary energy expenditure. Commonly used in shops, hotels, entrance halls, and reception areas, and in workshops and warehouses, door heaters prevent exterior cold air from entering a large space every time the door is opened and prevent the loss of heated air in the same way.

How Door Heaters Work

When a door is opened into a sealed building, a vacuum is created that encourages air movement. Installing a door heater disrupts this process and prevents air exchange from inside to outside. Door heaters can be gas-fired using a gas flame to create heat, they can use boilers and steam as a heat source, or use an electric element to create heat. An air propeller, or fan, will be needed to force air across the door opening and create enough resistance to prevent interior-exterior airflow. Therefore, doorway dimensions need to be considered when determining the size and capacity of door heaters to ensure adequate coverage. Larger door openings such as warehouses or garages may require more than one heater, and these can be placed side by side to fully cover the open space. Door heaters are ceiling or wall mounted, but optimal performance and results should be placed as closely as possible to the top of the door.

Design of Door Heaters

Typically, a switch is installed on the doorway or connected to the door's opening mechanism, which turns the door heater on each time the doors are opening and closing, as this is when the barrier is required to prevent heat loss. The continual operating of the door heater would result in high energy expenditure and the potential for overheating within the space itself. Therefore a trigger switch or sensor is a necessary part of the mechanism. In door heaters, there are options for adjustable levels of heat and airflow. Some units can be run without the heating elements on and therefore are able to be further used in the summer months. In warmer weather, the purpose of maintaining the interior temperature of a space to avoid extra energy loss is similar – to prevent the loss of the air temperature within the building (in this case, cooled air) and to prevent the entry of the outside air. Another use for door heaters is for the general heating of space when a high level of space heater is required. Some models of door heaters are adjustable, and the heated airflow can be directed into a room rather than across the opening.

 


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