The LiftMaster HTRNB Heater Kit is designed to provide reliable performance in cold climates, protecting your AC and DC gate operators as well as MAXUM commercial door operators down to temperatures as low as -40°F. This easy-to-install kit ensures your system runs smoothly, even in the harshest conditions, by safeguarding it from freezing temperatures.

• Temperature Protection: Keeps systems operational down to -40°F, ensuring reliable performance in extreme cold.

• Wide Compatibility: Works with LiftMaster CSW200, SL3000, SL585, and SL595 gate operators.

• For AC/DC Systems: Compatible with both pad-mount AC gate operators and DC commercial door operators.

• Easy Installation: Designed for easy integration with existing systems; installs on the operator frame.

• Excludes 460/575V Models: Not compatible with 460V and 575V operators (factory-installed heaters required for those).