Honeywell Home Cylinder Thermostat L641A

The Honeywell L641A cylinder thermostat is designed for surface mounting on domestic hot water cylinders. It can be used to directly switch a wet central heating circulating pump or boiler, or to operate spring return and motor open/motor close zone valves.

• Ideal for general applications
• Suitable for use on uninsulated and foam lagged cylinders
• Double insulated
• Dial or screwdriver slot temperature adjustment
• Supplied with cylinder strap and hooks