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How can we improve the efficiency of an existing heating and cooling system without replacing the furnace or air conditioner, and without adding more insulation?

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How can we improve the efficiency of an existing heating and cooling system without replacing the furnace or air conditioner, and without adding more insulation?

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A. The best way to make an existing air conditioning system more efficient without changing out equipment is to have it properly maintained. Equipment that is running with an improper refrigerant charge will run longer to satisfy cooling targets. Dirty condenser coils will prevent efficient heat exchange, which forces your compressor to use more electricity. Properly maintained equipment will reduce your energy bill, but with the advances in the air conditioning industry, these savings will not come close to what you would see with some of the newer, high-efficiency systems that are on the market.

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