Industrial Electric Plenum Heaters

Electric plenum heaters are heating units specifically designed to be installed in small, concealed spaces – typically in crawl spaces and plenums, which is the space between a structural ceiling and a drop-down ceiling or the space under a raised floor. In commercial spaces like warehouses and factories, plenum heaters are often used as a primary or supplementary heating solution or for freeze protection, keeping operations running even during extreme cold. Plenum-rated heaters also provide warmth for large residential buildings, working with the HVAC system to heat the air before it is distributed through the ductwork. At NorthStock, explore plenum heaters in a range of sizes and capacities and find an unobtrusive, energy- and cost-efficient heating solution that’s perfect for your business.

What is a Plenum Heater & Why Do I Need One?

An electric plenum heater is a device used in HVAC systems that uses electrical resistance to generate heat, which is then transferred to the air that passes through the plenum. Electric plenum heaters are often controlled by a thermostat, which regulates the temperature by turning the heater on or off as needed. While plenum-rated heaters are primarily installed in the plenum space, they can also be placed in hallways, bathrooms, concession stands, entryways, parking garages, utility rooms, or any other small, concealed space with limited clearance. Some advantages of a plenum heating system include energy efficiency, easy installation, quiet operation, and easy integration with existing systems due to the unit’s compact design. Adding a plenum heater can also be cost-effective because it can allow you to turn an existing fuel furnace into a dual-fuel system so that you can switch between electric and gas heat, saving you money.

Unforgettable Features of Electric Plenum Heaters

Having an understanding of what is a plenum heater and what advantages it brings to your business is important before you buy. Plenum-rated heaters are built with a variety of thoughtful features and offer many advantages for both installers and users. Electric plenum heaters come with several important safety features, including built-in disconnect switches and a gasketed control panel that protects the electrical components of the heater. Plenum heaters are also known for being low maintenance and easy to service. They feature easily removable single panels as well as pre-notched duct collars, which help simplify servicing and maintenance. Designed for durability, these heaters tout heavy-duty steel-finned heating elements and rugged powder-coated steel construction, so you can trust that your plenum heating system will last. 


Ready to make your plenum heater purchase? At NorthStock we carry electric plenum heaters from top industry brands, including Berko, Markel, and QMark. Select your favorite brand, desired design (ceiling-mounted or wall-mounted), and required heating wattage, and you’ll find specific plenum heater options tailored to your needs. If you have questions about plenum heating systems or our wide range of commercial and industrial heating, cooling, and ventilation solutions, please contact us and our team will be happy to assist.

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