One of the main reasons to install a new furnace is to achieve better energy efficiency. But how do you know that your new system will be energy efficient? You’ll want to take a look at the AFUE rating.
What Is AFUE?
AFUE stands for annual fuel utilization efficiency, and it is the measurement of a furnace’s efficiency in converting fuel to energy. For instance, if you see an AFUE rating of 90%, this means that for every 100 units of fuel burned, your furnace will generate 90 BTUs (British thermal units). Put another way, an AFUE of 90% means that 90% of your total fuel usage goes toward heating your home; the rest is lost to exhaust that goes out your flue. Reviewing the AFUE rating will tell you not only how energy efficient the unit is, but how much money you can expect to save, depending on what the AFUE is. It is important to note that the higher the AFUE rating, the more expensive the unit will be.
ENERGY STAR Rating
A second way to assess whether or not a particular furnace is energy efficient is to see if it carries an ENERGY STAR sticker. The ENERGY STAR sticker will only appear on products that are at least 15% more efficient than the minimum standards. As such, any product with the ENERGY STAR sticker will have good energy efficiency.
Why Does This Matter?
Less fuel usage means lower monthly energy bills; the best way to achieve energy usage is to install an energy efficient furnace.
What Energy Efficiency Doesn’t Mean
There can sometimes be confusion about what having a more energy efficient furnace can mean, so we’ll explain here. Let’s say you are looking at a furnace with an AFUE of 95% versus a furnace with an AFUE of 90%. The furnace with the higher AFUE won’t heat your home better or faster than the furnace with the lower AFUE rating, it will heat it the same; the difference is that it will heat your home using less fuel, which is how a furnace with a higher energy efficiency rating can save you money.
Energy efficiency ratings can be a little confusing, so if you are having a hard time choosing a furnace for your home, call Johns Refrigeration today and schedule your furnace service in Mesa, AZ with one of our installation experts.