How Can You Tell if Your Heating System Is Energy Efficient?
Heating systems vary in energy efficiency, which impacts home energy costs. Inefficient heaters can drive up your utility bill. Here is how you can tell if your heating system is energy efficient. Energy Efficiency and AFUE Ratings One of the best ways to determine if your heater is energy efficient is to check its annual fuel utilization efficiency (AFUE) rating. AFUE ratings use percentages to reflect how well your heating system converts fuel into energy. Current furnaces and boilers have a minimum 80% AFUE rating, reflecting that 80 cents out of every dollar spent on
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