What is AFUE Rating and Why Is It Important?

The AFUE rating is the measure of the energy efficiency of a furnace. It is calculated by considering how much energy is lost in the form of heat that leaks out through gaps in the furnace or by being wasted up the flue. The higher the AFUE rating, the more efficient the furnace is.

It has also become one of the most important figures to consider in choosing a heating system. Aside from the AFUE rating, homeowners should know how to maintain a furnace and call a professional in case of repairs or replacements. 

Likewise, understanding how the AFUE rating works will help you make better decisions regarding heating your home more efficiently. 

What is AFUE rating? 

Short for Annual Fuel Utilization Efficiency, the AFUE rating measures how efficiently your furnace is burning fuel to heat your home. If your furnace has a rating of 70%, it means that percentage represents the fuel it burns and converts to heat. 

The rest gets wasted during the combustion process, emitting a toxic byproduct that escapes through the chimney. The higher the AFUE rating, the more energy-efficient your furnace. In countries like Canada, a minimum AFUE of 95% for residential gas furnaces is mandatory. 

Likewise, a higher AFUE rating makes heating more efficient and saves you money in the long run. Suppose you have an old furnace. Better if you replace it with a newer and more efficient model with a high AFUE rating. You will see the impact of using a furnace with a high AFUE rating on your energy bill and your household’s overall comfort. 

Tips on buying a furnace 

Whether you’re looking for gas, electric, or any other kind of furnace, here are tips on buying a furnace for your home: 

Pick the right furnace type for your home heating needs. 

You can choose from gas, electric, oil, and propane furnaces. The right type of furnace depends on several factors. For example, an electric furnace is ideal for those who do not have access to natural gas or those who want to avoid the risk of carbon monoxide fumes. 

Find the correct furnace size for your home. 

The right furnace size is important to ensure overall home comfort. Otherwise, it could affect energy efficiency, temperature levels, monthly utility bills, and repair costs. 

Make sure to measure the square footage of your home, your windows and walls’ insulation quality, ceiling height, and the recommended heating factor depending on your location. You can contact a professional contractor to help determine the right home furnace model and size. 

Know the zoning systems. 

Depending on location, different parts of your home may get colder or hotter. For example, the kitchen area is usually hot due to the cooking. The bedroom, however, can be considered the “cold zone.” 

Zoning will help solve your heating issue, where each zone can be controlled, set the right temperature, and provide ample comfort in every room. Different comfort features are also available with varying systems of the furnace. This includes temperature controls, lower noise levels, etc. 

These are some of the most important things to know about furnaces and why an AFUE rating is important. For your furnace repair or replacement needs, contact a professional HVAC service in Spring Hill, TN, today!


Enter your contact details here to help us serve you better & faster.

Call Pipe Master Plumbing Today

When you want a plumbing company in Franklin, Brentwood, Columbia, Spring Hill and Mt. Pleasant, TN you can trust, call us for help. We would be honored to serve you.

24-Hours Emergency Services

Uniformed Licensed Plumbers

No Travel Charges

Free Estimates

Call Now Button931-215-1693 | Open 24/7