When searching for one, you could be tempted to select the HVAC system replacement that the salesperson claims have the highest efficiency rating. You'll nod in agreement when they discuss how high the AFUE and SEER are, but you might ask if, as they claim, I'll save money if the efficiency rating is more elevated.
There is more to the answer than a simple yes or no, but don't worry—not it isn't straightforward. We'll explain at HVAC Contractor in Springville, UT, what HVAC system efficiency ratings signify below and why they don't always reflect how much energy a system uses.
WHAT IS "AFUE?"
The AFUE of a furnace is used to gauge its efficiency (Annual Fuel Utilization Efficiency). The yearly heat output of a furnace or boiler divided by the total annual energy spent by a furnace or boiler is known as the annual fuel utilization efficiency, or AFUE, according to the Department of Energy. In other words, the AFUE ratio gives you an idea of how well the furnace produces heat over a "normal year" using the energy in its fuel.
What is a good AFUE ratio?
Generally speaking, the furnace is more efficient the higher the number. For instance, a furnace with an AFUE of 80 will waste 20% of its fuel and convert 80% of its energy into usable heat. An appliance with an AFUE of 90 will destroy 10% of its power and recycle 90% of its fuel into usable heat.
For new systems, the current federal minimum AFUE is 80%. To be deemed "high-efficiency," a furnace must have an AFUE of 90% or higher.
WHAT IS "SEER?"
The efficiency of an air conditioner or heat pump is determined by its SEER rating (Seasonal Energy Efficiency Ratio). The relative amount of energy required to deliver a particular cooling output is what the Department of Energy refers to as SEER. An air conditioner with a higher SEER uses less energy to cool your home than one with a lower SEER.
What is a good SEER?
The more the value, similar to AFUE, the more efficient the air conditioner. After January, new systems must have a minimum SEER of 14. Given that many older air conditioners still in use only have a SEER of 8, even though this criterion sounds low compared to SEERs of 21 and 22, it isn't. From there, upgrading to a SEER 14 or 16 will likely result in a noticeable reduction in your energy costs... assuming the variables we're discussing don't come into play.
WHAT FACTORS MAKE AN HVAC SYSTEM LESS EFFICIENT?
You've probably observed how higher AFUE and SEER tend to be correlated with larger price tags if you've ever looked for a new heater or air conditioner. After all, the system can save you more money the more effective it is. However, the reality is that even if your system has the highest efficiency ratings available, those ratings will mean less if external circumstances force it to work harder and consume more energy.
Here are a few typical causes of HVAC systems losing efficiency.
Wrong Equipment Size
It's essential to consider the capacity (size) of the HVAC system that is advised for your home based on its size, layout, and temperature zone, in addition to the efficiency rating. This is among the factors contributing to the ineffectiveness of acquiring a quote over the phone. To provide you with the best system options to suit your needs, an HVAC expert should come to your house, evaluate it, and find out about your current heating and cooling problems.
Sloppy Installation
One of the most significant investments you will ever make in your house is a new HVAC system, so you don't want the installation team to make any mistakes that may cost you more money in the long term. However, many installers will utilize inferior materials and take shortcuts to finish the job quickly and boost profit margins. Before making a system replacement investment, take the time to locate a reliable business that will prioritize your needs and carry out an installation properly.
Ductwork in Need of Sealing or Replacing
Air from your HVAC systems is distributed throughout the rest of your home by your ductwork, but if it has many gaps and holes, a lot of that air will escape into your walls and attic before it ever reaches you. As a result, to maintain comfort in your house, your HVAC system will need to operate harder and for longer cycles. So instead of replacing your system if it isn't working as efficiently as it once did, you might be better off sealing or updating your ductwork.
Inadequate Insulation and Air Leaks Around the House
Sometimes your HVAC system isn't even to blame for how much energy it consumes. For example, your home may have old insulation or air leaks that make it difficult to heat and cool the interior. If you haven't already, air sealing your home can help you start reducing your energy expenditures.
Skipped Maintenance and Dust Buildup
Two key factors contributing to HVAC system failures and lower efficiency are dust and poor maintenance. Remember that your system's AFUE and SEER aren't set values that remain constant no matter how you handle it or how old it grows. Without regular maintenance to keep it in top condition, your system will "age" more quickly in many ways and consume more energy to maintain the temperatures you want.
Bottom Line
When considering replacing an HVAC system, AFUE and SEER are essential considerations. Still, you also need to take into account other elements that might have an impact on the system's efficiency.
AC Repair in Springville, UT, offers high-quality heating and cooling system maintenance, repairs, and replacements to ensure your equipment operates safely and effectively. Call us at 8016746303 immediately to make an appointment with one of our HVAC specialists in the Complete Comfort Heating & Air Conditioning. You can also reach us online.
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