We're probably going to get one of these furnaces. Carrier Infinity
58MVB060 or Lennox G61MV070. Both are two-stage, variable speed DC fan
blower, about 95% efficiency. No air conditioning, we're on Vancouver
Dutifully reading newsgroup posts, I came across the advice that all
parts on these furnaces, especially the electronics and the DC motor,
are more likely to blow than on an old-fashioned furnace (the furnace
being replaced, a late 70s Airco, had no electronics at all), and can
be very expensive to fix. For example, $us 800 to replace the DV
motor. Several posters suggested "go for the 10-year warranty".
It seems that in Canada, the standard is a 5-year warranty on parts
(from the manufacturer) and one year labour from the dealer. My dealer
said he'd get back to me on the prices for warranty extensions.
I'm wondering if any other readers have (or have installed) these
furnaces, how old the installations are (I'm guessing that none are
older than 5 years), what if anything has broken. What I probably
won't get to know is how much it cost to fix, because everything will
still be under warranty. Or is there a website which tracks the
reliability of furnace components?