A blower assembly is used to distribute air in various kinds of equipment. It is commonly seen in cars, furnaces, and home appliances.
Beyond the basic parts of a blower assembly, there are several ways the equipment can be varied. Depending on its use, the wheel can be extremely long or wide. There can also be a wide variance in the way the assembly is secured. This includes different sizes of casings, which can range from small, circular models which are not much bigger than the blower wheel to larger rectangular structures. Depending on the use, the blower assembly can also be made to be affixed to equipment in several different ways. The configuration of a blower assembly depends upon the size and needs of the item being cooled. For small to mid-sized equipment a single assembly will typically suffice. Larger machines may have dual blower assemblies. Housing for the blower assembly will also vary, depending on the amount of space available.
Furnace blowers account for about 80% of the total furnace electricity consumption and are primarily used to distribute warm air throughout the home during furnace operation as well as distribute cold air during air conditioning operation.