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View Full Version : Janitrol GUI075-3... When were these made?


spacescape
06-27-2009, 11:09 PM
Anyone know what years Janitrol made the GUI075-3? Cannot find the manufacture date but the serial number starts with at "89".
jumpit
06-27-2009, 11:22 PM
On Goodman the first two digits are the year, and the second two the month. 1989.
spacescape
06-27-2009, 11:32 PM
Thanks. I figured the first two was the SN but wasn't sure. How efficient was this particular brand?
jumpit
06-27-2009, 11:37 PM
80% I believe.
spacescape
06-27-2009, 11:40 PM
According to this it's 75-80%. Thanks.

http://www.energytechpro.com/demo-res/Space_Heat-Cool/Gas_Furnace.htm