AO Smith Water Heater 120 through 250 Series User Manual
Service Handbook  
®
Cyclone XHE  
Extra-High Thermal Efficiency  
M O D E L S C O V E R E D  
BTH Models 120 through 250  
Series 960 through 967, 970 and 973  
Part No. TC-044R6 • Printed in the U.S.A. • 1105  
COMMERCIAL  
Visit the “Information Central” link of  
www.hotwater.com for a listing of  
available Service Handbooks.  
For additional information contact:  
A. O. Smith Water Heaters  
500 Tennessee Waltz Parkway  
Ashland City, TN 37015  
1-800-527-1953  
www.hotwater.com  
Part No. TC-044R6  
©2005 A. O. Smith Corporation  

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