When it's time to upgrade your gas furnace, you obviously want something reliable and efficient. Determining a unit's annual fuel utilization efficiency (AFUE) provides useful information on how efficiently equipment operates. Not only does this save money on heating bills, but it also reduces wear on your furnace to keep repair costs manageable. 

What Is an AFUE Rating & How Is It Calculated?

AFUE is a measurement of how much fuel is used to create heat. AFUE ratings are expressed in percentages, which are based on the amount of fuel provided to heating equipment divided by the heat output. For example, if a gas furnace has an AFUE of 80%, 80% of the fuel supplied to unit is used to create heat, while the remaining 20% is lost. These ratings refer to efficiency over a yearly basis. 

An AFUE rating of 80% to 83% is considered mid-efficiency. High-efficiency equipment can have ratings between 90% and 98%. This is often the case with brand-new heating units designed for maximum efficiency. 

What Should I Look for When Buying a New Gas Furnace?

Most furnaces print their rating on the Energy Guide Label attached to the equipment. If you can't find the rating, note the serial number and visit the manufacturer's website to perform a search. Most list AFUE ratings for their products. 

While efficiency is an important consideration, there are factors to take into account. The size of the unit can also affect costs and efficiency. That's why an HVAC technician must assess your home before you buy. If a unit is too small, it will fail to heat your home properly; if it's too big, it will incur unnecessary costs. 

You can also choose between a traditional furnace and a split system. While gas furnaces only heat the home, a split system offers heating and cooling capabilities. This can be a good option in areas with mild winters, such as South Carolina.

Choosing the right gas furnace for your home is a major decision, so professional help is recommended. South Carolina Mechanical provides quality service to homeowners in and around Conway. They carry equipment from trusted, brand-name manufacturers for your peace of mind. They also use their impressive expertise to help you make decisions on AFUE ratings, equipment size, and more. They're available 24/7 in case urgent assistance is needed. Get started on your free quote by calling (843) 333-1494. You can also learn more about installation services by visiting the website.