See my response in you first half assed post, quit trying to play supertech
when you haven't even got answers to the basic questions you should have the
answers to.






"m Ransley" wrote in message
...
What should out put temp be of pvc exuast on a 93% Lennox 2 stage
furnace on low fire, with probe inserted into the exuast apx 10 ft from
the furnace. I read 93f with a calibrated thermometer placed in center
flow.