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- Select energy-efficient products when you buy new heating and cooling equipment. Before you buy, compare energy usage for each model and design you are considering.
- New Heating Units: Look for high Annual Fuel Utilization Efficiency (AFUE) ratings. The national minimum is 78% AFUE, but there are ENERGY STAR models on the market that exceed 90% AFUE.
- New Air Conditioners: Look for a high Seasonal Energy Efficiency Ratio (SEER). The current minimum is 13 SEER for central air conditioners. ENERGY STAR models are 14 SEER or more.



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