What is a Furnace Filter?
A traditional furnace filter is a part fixed to the furnace’s induction side in order to trap and retain dust and other airborne particulates, which can cause damage to the blower motor, heating coil and other equipment in the HVAC system. A high efficiency furnace filter is one that improves indoor air quality by capturing smoke, allergens, pollen, pet dander, mold spore and other extremely tiny particles in the air and prevents occurrence of respiratory and allergic problems.
A furnace filter’s purpose is to block out the dust and the dirt and any foreign objects that may or may not get in the way of your furnace’s work. Dust buildup can decrease the amount of heat that your furnace is putting out, therefore, decreasing the efficiency of your furnace and making it more expensive for you to heat your home. Fortunately, filters counteract the dust that might get in by trapping it on the filter itself. It collects the dust and dirt so that when you are ready to clean it all of the buildup will be right there waiting for you. However, there are many types of filters and not all of them are designed to perform the same job. Some filters only catch large pieces of dust and dirt, while others are designed to trap the smallest foreign particles throughout the air that is let in. For example, disposable filters, like those made out of fiberglass, are an example of the ones that are designed to trap only larger pieces of dust. On the other hand, there are electronic
A furnace filter is a removable filter that fits somewhere in the furnace unit between the location of air intake and the motor, fan, and heating coil. The furnace filter was originally designed to protect the motor and internal components from airborne particles and dust that may damage the furnace. Manufacturers use a standard fiberglass furnace filter for this purpose. However, a furnace filter can serve a few other purposes as well. In addition to protecting the motor from dust and particles that may otherwise pass through it, a furnace filter can improve the airflow and efficiency of the furnace. Without a furnace filter, the system would become clogged with dust, causing the motor to work harder until it eventually overheated and quit working. Generally speaking, this is the sole purpose of the standard fiberglass furnace filter. These filters are cheap, usually under 5 US dollars (USD), and require replacement at least every three months to work efficiently. Though originally de
The forced air furnaces I have seen have a fan that pulls air from the house through whats called cold-air ducts. It continues to pull the air through a filter in an attempt to remove dust before the air enters the actual furnace. The fan goes on to push the air through the furnace where it is heated and continues to push the air through the warm-air ducts and on into the house. The typical filter is maybe 20×20 inches and around 1 inch thick. There are lots of different sizes as you can tell by going to a hardware store and asking to see their furnace filter aisle. You should replace your filter every 2 months or so otherwise it gets filthy enough to lower the airflow enough to first make the furnace less efficient than it already is and eventually make the furnace hotter than it should be while not heating your house very well. If your asking what it is I’m guessing you haven’t replaced yours in a while. You should turn your thermostat low – so your furnace doesn’t come on – then go
It is an air filter used for improving the quality of air that is heated by furnace heat exchangers.Why should the heated air be filtered? • The air coming out of the furnace frequently contains particles that have not burned completely suspended in it, these particles might aggravate allergies and on the long run might be a risk for other more serious problems. • The heated air contains pollen, mold spores and other particles that might be allergenic. • These suspended substances eventually clog the pores or openings of the heat exchanger in the furnace, that is why a filter is needed and that filter should be changed periodically.When the openings of the heat exchanger are blocked, the furnace will spend more energy to produce the desired heating.Working of furnace filters Like other air filters, there are many types of furnace filters with different mechanisms for purifying the air, however the general idea is to provide a barrier that will only let air through while blocking the pa
