Trane model G50R. I have had the unit for 6 years with intent to install in garage. Never got to , never will. I have never had it running. I took it out of a metal building and they had used it up till the day I removed it. I have serial number if you would like. I can get you pictures if you would like. Sold as is, and as mentioned it was working when removed 6 years ago. Asking $500.00 and needs to go. I will get shipping cost which is your cost. I can deliver within 100 miles of Watertown, WI.