How Furnaces Are Rated

If you're looking at installing a new furnace in yourof electricity, so buying a furnace that is not only
home, now is a great time to do it. You can get aefficient with your gas or oil but also with your
tax credit from the government for buying aelectricity can save you money on your energy
high-efficiency furnace, but you may need tobills.
know a little bit about how furnaces are rated soOne of the most electrically efficient types of
that you can make the best possible choice forfurnaces is one with a variable speed motor.
your home.These motors help precisely control the flow of
The most obvious rating for furnaces is the onethe air in your home by turning off and on or
assigned by the Annual Fuel Utilization Efficiency.moving at different speed during different times.
This rating basically looks at the percentage ofThese types of motors can save you lots of
heat produced for every dollar's worth of fuelmoney on your electric bill.
that your furnace consumers. Today, all furnacesAnother way to save energy is to find a furnace
have to be at least 78% efficient, which meansthat has two-stage heating, which means that it
that 78% of the fuel that is consumed by yourputs out high heat on very cold days and lower
furnace actually goes to heat your home.heat on milder days. Most of the time, the
Obviously, then, the higher the AFUE rating of thefurnace will run at the lower heat output, which
furnace you choose, the more money themeans that it will use less energy on these days.
furnace will save you. If you buy an 80% efficientCombining the actual AFUE ratings of the furnaces
furnace, you'll lose 20% of your fuel costs intoyou're choosing with the knowledge of its
empty space, and if you buy a 90% efficientelectrical efficiency and the type of heating that it
furnace, you'll only waste 10% of your energyoffers can help you make the best choice on an
costs. Chances are likely that a furnace that'senergy-efficient furnace. You can basically save
more than a decade old will be losing you moreyourself even more money by doing the research
than 20% of your energy costs, so a newon the type of furnace you're buying rather than
high-efficiency furnace can save you a lot ofsimply buying a furnace that happens to have a
money.high energy-efficiency rating. Even some Energy
While a furnace's rating is really important, it isn'tStar rated furnaces could cause your electrical bills
the only important thing that you should considerto rise - or at least not to fall when you replace
when selecting a furnace. For instance, furnacesyour furnace - so be sure that you look at all the
consume not only oil or natural gas but alsoaspects of your furnace before you buy a new
electricity, which runs their fans and motors.one.
Different furnaces will consume different amounts