The XR13 home air conditioner has a Seasonal Energy Efficiency Ratio (SEER) rating of up to 14.50, which is the minimum SEER rating necessary to qualify for an Energy Star label. This places it in the above-average category for overall energy efficiency.
Energy Star is a U.S. Environmental Protection Agency voluntary program dedicated to helping businesses and individuals save money while protecting the environment. Products earn the Energy Star label by being able to demonstrate superior energy efficiency without compromising functionality. Having the Energy Star label means that the XR13 home air conditioner offers technology that is concerned with protecting climate conditions while also saving energy costs; however, other Trane products are available with higher SEER ratings.
The initial cost of the unit tends to rise considerably with the SEER rating, but the long-range energy savings also increase. For a modest increase in equipment cost, the Trane XB15 offers the same benefits as the XR13 but with a SEER of up to 17. The Trane XV20i Variable Speed offers the greatest efficiency with a SEER rating of 21, but at a considerably higher equipment cost. There are several models geared toward the mid-range budget that are bear the Energy Star label, so by weighing the energy-saving variables with the out-of-pocket expense, a suitable model can be found that is both affordable and environmentally conscious.