The Run Tru brand was created by Trane last December for Trane dealers to be able to offer cheaper options. There are only basic single stage AC available- probably same as Trane equivalents. I'm told that the gas furnaces are the same as Trane except that they aren't painted.What is the best AC unit?
Lennox currently holds the mantle for having the best central air conditioner in terms of SEER in the market. Its premium unit is extremely expensive, yet it has a SEER rating of 26. Goodman holds a medium stance in this regard with a SEER of 18 while being wallet-friendly as well. 12 Best Central Air Conditioners Reviewed 1.