If your heater control valve is broken, these two guys rebuild them and/or sell rebuilt ones.
Rebuilder of Ranco and RobertShaw heater valves. New Ranco heater valves for sale
Joe Hudacek
6606 Banks Avenue
Superior, Wisconsin 54880
715-392-6169
Cell: 218-213-8906
http://www.heatervalves.net/Rebuilder of Harrison and Ranco heater control valves. New valves for sale 1950 -1975
Jim Tucker
29597 Paso Robles Road
Valley Center, California 92082
760-749-3488
https://www.heatercontrolvalve.com/ (Mod Note: Per bolter Kevinski, Jim Tucker's site shows he passed away 03/2025. No mention of anyone continuing the business.)