The Champion 18 SEER Air Conditioner
Built for maximum efficiency and output, this high quality air conditioner provides the highest quality combination of comfort and energy efficiency, as indicated by the very high SEER rating. It also comes with a touch screen, programmable thermostat so you can make sure your system is set to run only when necessary. This helps prevent any wasted usage and increases the life of your air conditioner. While it does require a higher investment upfront, the savings on your energy bill in the long run are more than worth it.
Coleman Echelon Series
This is another excellent choice for maximum energy savings and comfort. With another SEER rating of 18, this air conditioner will ensure that you are getting the most comfort for the lowest energy costs. It too comes with a touch screen thermostat to allow for easy control and programming options. It is also quite easy to service and maintain and even has low sound levels.