On Sat, 26 Jan 2008 08:14:40 -0500, "Edwin Pawlowski"
wrote:


"John Smith" wrote in message
...
Thanks for your responses. My furnace is Trane xv80. I did an Internet
search and found the temperature rise to be 30 - 60 degrees. Mine is 34
degrees. It is within the spec, albeit at the low end. Should I worry
about it?


These are 2 stage furnaces. is the second stage working?