Been going through this site and others. Lots of good info - sometimes too much and too much of it includes air conditioning. Seems the only thing everyone will agree on is that an average furnace properly installed will perform better than a superior furnace poorly installed. I'm still hoping for insight, comments, and opinions to help me make a choice on a new gas furnace.
We are replacing our old oil furnace with a new gas furnace. 2000sf house built in 1955 near Seattle, Washington. Not planning on moving for at least 10 years. Oil tank decommissioned and fall approaching.
I have 4 quotes from 4 contractors. Price differences are minimal, so cannot base decision on installation cost.
Company B: Lennox 95-percent, 2-stage, variable speed (Model G61MPV36B071), Honeywell Vision 8000 t-stat. When I mentioned the Consumers Digest Repair rate chart and several sites recommending Trane, salesperson said that doesn't jive with his in-the-field survey. In business since 1987. Received highest award 4 times from local gas utility contractor referral program for sales and service.
Company G: York Affinity 95-percent, modulating, variable speed (Model Affinity PC9B12N080UP11). This company installed a new Trane XV90i in our previous house. When I asked why not a Trane this time, salesman said they have switched from Trane to York. As a technician, he said Trane is fine, but York has better software running the system. He also admitted to a personal preference for York after working on multiple brands. 3rd generation family company in business since 1929 beginning with coal, then oil in 1940. Still doing a lot of oil.
Company M (through Costco): Carrier Infinity 96-percent, 2-stage, variable speed w/ Carrier Infinity Control t-stat. Salesman was former Trane technician. Said Trane was a fine product, and so is Carrier. Commercial since 1965, started residential division in 1994, which subsequently split off into separate company.
Company S: Rheem. Model not specified. Company has excellent reputation (also award winner from local gas utility), but least detailed quote. Let's assume he meant the Prestige 90 modulating furnace to keep the playing field relatively even. Forget which brand(s) he mentioned where they're replacing a lot of heat exchangers. In business since 1986.