man looking at paper adjusting thermostat

What energy efficiency ratings mean and why they’re important

More than half of your utility bills in Saint Peters can be attributed to the cost to heat and cool your home. To save as much money as you can, you should find a system that can deliver home comfort as efficiently as possible. The better your system’s energy efficiency, the more your system is doing while using less energy. If you’re ready to upgrade or replace your HVAC equipment, you should understand a handful terms and ratings to be fully informed and get the best energy efficiency possible.

SEER (used to measure cooling efficiency)
The Seasonal Energy Efficiency Ratio, or SEER, rating assesses the cooling efficiency of your equipment at different temperatures. Higher SEER ratings denote better energy efficiency, and therefore, more affordable utility bills. For chillier northern states, The Department of Energy requires a minimum 13 SEER rating. Warmer, southern states must must have a SEER rating of 14 or higher. If your unit has a lower SEER-rating, an upgrade could bring you a valuable spike in energy savings.

AFUE or HSPF (used to measure heating efficiency: gas or electric)
Annualized Fuel Utilization Efficiency (AFUE) ratio identifies the percentage of heat produced for every dollar of fuel used—just like the miles per gallon you get from your car. Higher AFUE ratings equate to lower energy costs. So, an AFUE rating of 80 means that 80% of the heat created by your furnace is heating your home, and 20% of the heat is wasted through venting.

The Heating Seasonal Performance Factor (HSPF) measures the heating efficiency of heat pumps. It is fundamentally the SEER rating for winter given that it measures only heating efficiency. Like the other ratings, higher numbers indicate better energy efficiency.

At C-N-O Comfort Zone, you’ll find equipment with top energy efficiency ratings. We can help you determine the energy efficiency of your existing equipment and help you find ways to improve that efficiency and save money—whether with continued maintenance or with up-to-date, more efficient equipment. Just call us at 636-578-1777 or schedule an appointment with us online.