Thermostat Antique Brass 1930’s Vintage Williams Oil-O-Matic Heating Mercoid
Specifications
| Power Source | Wired Electric, Oil |
| Color | Bronze, Brass, Brown |
| Material | Metal, Brass, Bronze |
| Control Style | Dial, Analog/Mechanical |
| Unit Type | Unit |
| Voltage | 110V (based on label) |
| System Switching | Heat Only |
| Country Of Origin | USA |
| Programmability | Non-Programmable |
This is a rare vintage Williams Oil-O-Matic Heating thermostat, manufactured by Mercoid. This antique piece features a robust, industrial design with its original brass/bronze finish and a visible mercury thermometer marked 'Tycos'. The unit appears to be a mechanical thermostat, designed for heating systems, and includes a temperature setting dial at the base. It proudly states 'Made in U.S.A.' on the internal label. While its operational status has not been tested, it presents a fantastic opportunity for collectors of vintage HVAC equipment, industrial decor enthusiasts, or those looking for an authentic period piece for restoration projects. Please examine all photos closely for detailed condition and markings. This is a unique and historical piece of heating technology.