Ok... Lets curb this while we can. I respect your opinion, I tend to believe it myself to an extent, but they dont make an atmospheric gravity furnace anymore so the comparisons are no longer fair. The differnce between a low level 90+ and a Mod90 is hardly worth the difference in comfort.
All furnaces made today have alot more parts than furnaces of yesteryear, granted, more moving parts. All furnaces have inducer or vent motors, all furnaces have blower motors. Most of the premium units have a variable speed motor and at least a 2 speed inducer. I cannot think of a furnace made in the past couple years that used a VS motor other than the ECM from GE. Many of the replaced motors, especially early on were misdiagnosed. Some were damaged by condensate. GE has also improved the module over the past 2 years inluding moisture protection. Many had the whole motor assembly replaced when just the module needed replaced. Sometimes this was at a homeowners expense but more than often it was warranty. The motor in the Mod is the same as any other VS furnace exept the software in it enables that same motor to work at a true variable speed while the rest are limited to two or three cfm ranges.
The furnace has a 5 year parts warranty and I believe Nathan mentioned he was going with the extended 10 year warranty including parts and labor. I always recommend this for all the more it costs. If he chooses the high seer condenser he may already get a 10 year warranty on all parts there.
Many furnace failures are due to airflow issues, the ECM will overcome many of those and the furnace will also control its temperature rise. It is Direct Spark ingition so it will not have a Hot surface ignitor to fail. The unit will cycle about a third as many times as the normal furnace which means less cycles on every part. The reliability of these furnaces is simply outstanding. Very, very few warranty claims. And so far no complaints from anyone who has one. Find that claim anywhere else. Its been around for 7 years.
[Edited by docholiday on 04-25-2005 at 11:33 PM]