Fortress U · FU 101

What's your SEER rating costing you?

Compare your current air conditioner with a newer, more efficient one and see the difference in yearly cooling costs.

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• What SEER means

  SEER is a cooling efficiency rating: how much cooling a system delivers for each unit of electricity it uses. Higher is more efficient. New systems are rated in SEER2, a stricter test of the same idea.

• Why it matters here

  In the Valley, the AC runs most of the year. The more hours a system runs, the more each point of efficiency is worth on your power bill.

• The simple math

  Electricity use falls in proportion to the rating. A 20 SEER system uses half the electricity of a 10 SEER system to deliver the same cooling.