Goodman manufactures the best central air conditioning model available as of the end of 2014, according to heating and air conditioning review site Furnace Compare. The Goodman DSXC18 achieves high-efficiency ratings with low noise levels and is easy to troubleshoot due to a built-in diagnostics unit.
The Goodman DSXC18 can achieve a Seasonal Energy Efficiency Rating of up to 18. It uses a two-stage, scroll compressor and quiet compressor fan motor to improve efficiency and reduce noise levels. Further noise reduction features include a high-density-foam, sound-dampening blanket fitted around the compressor and a top designed specifically to reduce noise emissions.