Laars R2003400 Modulating Gas Valve Actuator for Rheos Boilers

The Laars R2003400 is a modulating gas valve actuator designed for use with Laars Rheos series commercial boilers and water heaters. This critical control component precisely regulates gas flow to achieve optimal combustion efficiency and temperature control in modulating heating systems.

Key Features:

• Genuine OEM replacement part for Laars Rheos RHCH and RHCV models
• Compatible with Rheos 1200, 1600, 2000, and 2400 series units
• Landis brand modulating actuator technology
• Features 1/2" NPT connection for integration with gas valve body
• Enables precise burner modulation between low and high fire settings
• Works in conjunction with the boiler control system to maintain setpoint temperatures

This actuator is an essential component of the Rheos modulating gas train, allowing the boiler to adjust firing rates based on heating demand. Proper operation ensures efficient fuel usage and consistent temperature delivery in commercial hydronic heating and hot water applications.