In modern terms, 1 ton is defined as 12,000 BTU/hour, and 1 BTU = 1.06 kJ. They are measured in ‘tons’ – which was originally defined as the amount of heat removed by 1 ton of ice every 24 hours. Just as important as the SEER rating, or perhaps even more important, is the size of an HVAC unit. The most efficient SEER ratings of air conditioners fall in the range of 20+. For instance, the minimum SEER rating allowed today is 13, but if you have an older system, chances are the rating is 10 or less (and could even be as low as 6). While there’s no set range for SEER ratings, as maximum range increases with modern cooling systems becoming even more efficient, it’s important to pay attention to some levels. When it comes to SEER ratings, the higher the SEER rating the greater energy efficiency and that also means lower energy bills. The more efficient your cooling system is the less energy it will take to cool your home. The Seasonal Energy Efficiency Ratio (SEER) measures the energy efficiency of your air conditioner and heat pump over an entire season, by calculating the cooling output divided by your total electric energy input.
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The most important terms when it comes to cooling systems are SEER and Tons, and we’ve put together an easy-to-understand summary and guide to understanding them: If you need a new cooling system, the question is which AC system is best for you and your home needs? Since there are quite a few different options and ways to go, it’s important to distinguish the differences and understand the variables that go into choosing a new air conditioner or heat pump. Sizzling summer days and nights are just around the corner – is your home equipped for cool comfort and energy savings?