Hanging furnace units, often referred to as unit heaters or suspended heaters, are a type of heating system commonly found in commercial and industrial settings. These units are typically suspended from the ceiling or mounted on the wall, hence the term “hanging”. They are designed to provide localized or area heating, rather than whole building heating, making them an effective solution for large spaces where maintaining a consistent temperature can be challenging.
The operational mechanism of hanging furnace units is quite straightforward. They operate by drawing in cold air from the environment, heating it via a heat exchanger which is warmed by combustion gases from a burner, and then dispersing the heated air back into the space. The heat exchanger ensures that the combustion gases do not mix with the air being heated, ensuring safe operation.
During a commercial inspection, encountering hanging furnace units can be quite common especially in warehouses, factories, garages, and other large commercial spaces. The inspection of these units typically involves evaluating their installation for safety and efficiency. Inspectors look at aspects such as proper mounting, adequate clearance from combustible materials, proper venting and exhaust systems, and the condition of the heat exchanger. In addition, they also assess if the furnace is appropriately sized for the space it is heating.
Hanging furnace units can be powered by different types of fuel including natural gas, propane, oil or electricity. The choice of fuel often depends on factors such as availability, cost-efficiency and environmental considerations. Natural gas and propane are commonly used due to their cost-effectiveness and high energy output.
In conclusion, hanging furnace units are an indispensable part of many commercial buildings providing efficient and effective heating solutions. As such, understanding their operation and maintenance requirements is crucial during a commercial inspection. With proper installation and regular maintenance, these units can provide reliable heating for many years.