Products - HVAC
In 1869, Benjamin Sturtevant patented the first hot blast apparatus, marking the beginning of the modern air-blast apparatus as applied to heating, ventilating and drying applications. The early "Sturtevant System" was centralized with air forced by a fan across steam coils then conveyed through ducts to all parts of the building. The line would expand to include unit ventilators for schools and suspended/floor type heaters for commercial/industrial work.
It was nearly a full decade after Nesbitt Co. introduced the first unit ventilator in 1917 that Sturtevant started a product line, though they patented a unit ventilator as early as 1915. As long-time believers in the Central Air System, they viewed the initial units as too bulky and noisy to be seen as a viable alternative. With the creation of a light-weight copper heating surface,(developed by Aerofin Corp. which Sturtevant co-founded) in the 1920s, these issues disappeared and Sturtevant jumped into the fray. Originally developed for schools, unit ventilators would be in great demand in public and private buildings.
Large plants with acres of floor space, work shops, garages, stores, service stations - were typical locations where Speed Heaters provided economical heating.
Air entered through the diffuser plates, passed through the spray chamber, where it was conditioned, then out through the eliminator plates, which removed dirt and excess moisture.
Each room was equipped with a complete individual unit ventilator having a fresh air inlet, motor driven fans and a radiator with neccessary controls, all enclosed in a steel cabinet.
The fans discharged hot conditioned air through a duct system to specially designed tapered nozzles which in turn discharged the conditioned air at a high velocity through a continuous baffle plate extending the entire length of the dryer housing.