I've received two estimates on a new furnace and am having trouble evaluating the differences. One proposes to install the York, Model TM9X080B12MP11. This is a one-stage unit. The other proposes to install the York/Fraser 2 stage unit, Model TM9T080B12MP11. The estimate for this unit is significantly higher than the first one.
But I'm confused. I've read that the "York/Fraser Johnson" is an inferior line of York products, yet the price on this unit (admittedly, it's a two-stage one) is higher.
Can anyone possibly explain the price and quality difference between these two furnaces? I'd be most grateful.