Lennox 13acx is a cheap builder's special unit, xc13 is the main line with a better cabinet.
Bryant and carrier are the same make but don't know anything about the models.
When you pay more for central system, builder's vs premium, you generally get a nicer cabinet, less noise, pressure switches to protect the compressor.
For some brands it means the difference between mexican assembled using all 3rd world parts or american assembled using mostly 3rd world parts.
If you care about employing fellow americans, assuming you're in the US VS. saving money, avoid the lennox builder's line and probably much of carrier's too. (http://www.breitbart.com/big-govern...-cuts-1400-indianapolis-jobs-moves-to-mexico/)
Bryant and carrier are the same make but don't know anything about the models.
When you pay more for central system, builder's vs premium, you generally get a nicer cabinet, less noise, pressure switches to protect the compressor.
For some brands it means the difference between mexican assembled using all 3rd world parts or american assembled using mostly 3rd world parts.
If you care about employing fellow americans, assuming you're in the US VS. saving money, avoid the lennox builder's line and probably much of carrier's too. (http://www.breitbart.com/big-govern...-cuts-1400-indianapolis-jobs-moves-to-mexico/)
