Reading Serial Number
The first two numbers signify the model number
The 2nd two numbers signify the date
10 = T-23
11 = T-24
32 = T-33
33 = T-34
12 = T-44
13 = T-45
15 = T-65
19 = T-109
Serial Number Example
T0101211474
Ignore the T0 of the serial number
2nd two digits 10 = T-23
3rd two digits 12 = 2012
Residential TurboMax = Full 15 Years
Commercial TuroMax = Full 10 Years
Current Warranty Starting 2011
Warranty Prior to 2011