Which furnace brand is most reliable?

Which furnace brand is most reliable based on HVAC dealer surveys measuring first-year service call rates and Consumer Reports predicted reliability in 2026 is Trane and Carrier tied as most reliable premium furnace brands. Trane furnaces like XC95m modulating 97.3 percent AFUE, S9V2 two-stage variable speed 96 percent AFUE, and S9X2 two-stage 96 percent AFUE have first-year service call rates around 8 to 10 percent lowest in industry according to HVAC dealer surveys by AS Research and PHCC, meaning only 8 to 10 out of 100 units need service in first year, with heavy-duty aluminized steel heat exchangers, thick gauge cabinets, and every unit factory tested, offering lifetime heat exchanger warranty. Carrier furnaces like Infinity 98 59MN7 modulating 98.5 percent AFUE, Performance 96 59TP6 two-stage variable speed 96 percent AFUE, and Comfort 96 59SC6 single stage 96 percent AFUE also have service rates around 8 to 10 percent, similar to Trane, with excellent reliability and standard parts widely available. Lennox SLP99V modulating 99 percent AFUE ranks close third with service rates around 9 to 12 percent. For best value reliable brand, Goodman GMVM97 modulating 98 percent AFUE offers good reliability at 10 to 13 percent service rates but lowest cost. Most reliable is Trane and Carrier for premium, with 18 to 22 year lifespan with proper maintenance of filter changes every 2 to 3 months and annual tune-up at 100 to 150 dollars.