Forced air furnaces are a very popular way for people to heat their homes. These units are very energy efficient and have efficiency values of 78% to 98% (as rated by the Annual Fuel Utilization Efficiency). One of the primary reason that a furnace works so well is because of Furnace blowers, an integral part of the furnace itself.
If your furnace blower is not working correctly or is dirty it will not be working at its peak capacity, which means that you will be wasting energy (and consequently, wasting money as well), so you need to know what your options are.
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First of all, if the Furnace blowers are dirty, then that is an easy fix. Typically the blower is behind the filter area and when you change or clean your filter, that is a great time to check the blower to see if it needs to be cleaned. Cleaning is simple and all you have to do is dust or vacuum out the area. However, if your furnace blower is not working, then you will have to check out your other options.
Furnace blowers are readily available online. There are sites that are dedicated to helping you find the parts that you need for your furnace and as such, you should have no problem finding what you need. However, you should, whenever possible, purchase parts made by the manufacturer of your unit.
If your furnace is under warranty, then contact the furnace company and see what your next step should be, if it isn't then trying to find the part via the manufacturer. Often, however, blowers purchased directly through the manufacturer is more expensive than purchasing it elsewhere, so determine what part you need and then do an Internet search for it.