vrscdx wrote: ↑ Brand doesn't matter as much as who is installing it. I would look for a company that does a heat load calculation so you get the right sized equipment. As for brands I like Lennox/Armstrong Air, and Carrier/Bryant/ICP (Tempstar, Keeprite, Payne). Neutral brands are Trane/American Standard, and Goodman, I would stay away from York.
Some brands get a bad rep because they sell to anyone, so you have terrible installation practises that make the brand seem bad. This is why installation is key, and I would only buy from a company that has good installation practises. Ask them when they commission the furnace if they measure temp rise, use a combustion analyzer, etc. If they setup the A/C do they use superheat (txv) or sub cooling (piston) or do they just charge it and hope its "good".
Comparing Lennox to Armstrong Air, is there a big difference.sickcars wrote: ↑ Brands are all similar what you need to look at is the models and features each furnace comes with. So you need to make sure its a 2 Stage Furnace, its comes with a Variable speed motor. Also you would also want good warranty, so something like 10 years parts/service would be great but also ask for the fine details on the warranty. Some companies require you to have the furnace serviced by the same company every year to keep the warranty. Also consider getting a new AC at the same time since you should save some money since they are working in there anyways.
Personally I dont like York as I have had bad luck in the past with them. I hear Amana, Trane, Napoleon, American Standard are good quality units.
There are probably other things to look for also that others can suggest.
Also it seems like every manufacture is offering 5 year part labour and 10 year parts.