Sterling Unit Heaters and Duct Furnaces are a complete heat generating and distributing plant, equipped with automatic controls, and packaged in an attractive streamlined housing. Designed for ceiling mounting, they provide a convenient, low-cost method of heating stores, factories, warehouses and other large open areas comfortably.          Indoor Product Line >>

Indirect fired make-up air systems are available in multiple configurations, based on Standard and High CFM Blower cabinets designed to be mounted on a common heavy duty skid rail with up to three gas-fired duct furnaces. Other cabinets include downturn plenums, coil cabinets with factory installed coils, filtration cabinets and evaporative coolers. Multiple factory installed gas and air controls are available including: DDC control packages, electronic stage controllers, building pressurization controllers, and a variety of mixed air controllers.          Engineered Product Line >>

The Sterling Direct-Fired product line includes indoor and outdoor models that can provide up to 14 million BTU's and 100,000 CFM. Units are available with chilled water, DX (refrigerant) and evaporative cooling options.
Direct-Fired Product Line >>

Featured Product

Hydronic Unit Heaters

Sterling is proud of the reputation it has earned in the hydronic heating equipment market for product quality, design, innovations and customer service.

Offered in both horizontal and vertical air delivery models, Sterling unit heaters are a complete heat distributing plant, encased in an attractive, streamlined baked enamel housing. Designed for ceiling mounting, they provide a convenient, low cost method of heating warehouses, stores, factories, and other large open areas.