Comparing brands of HVAC units in homes (Lennox, Trane, Luxaire, Goodman, etc.)
Looking to get a new gas furnace/"air handler" AC unit in the house. Condensor/compressor unit outside is not getting replaced. Trying to get a read on how much you get for the money with the pricier brands (Lennox, Trane, Carrier) versus "builder-grade" units such as Luxaire and Goodman.
Any testimonies about other brands are more than welcome.
Regrettably, we are on a super-tight budget with this purchase, and can't really even dump even a nickel into greater unit energy efficiency (no tax benefit would help us soon enough to make a difference). We're locked into a 13 SEER system, though 18+ would be ideal. This thread is basically to gauge HVAC-manufacturer reputations, and share experiences of changing out HVAC parts in the home.
Notes to guide the discussion: we're in SE Louisiana, and can get by with a merely adequate furnace for the 3 or 4 weeks a year we really need to run it. So the types of units we're looking at are substantially different, I think, than what would be purchased in the northern U.S.