The Honeywell R8182H Triple Aquastat Protectorely Controller R8040H Remote Bulb is a crucial component for maintaining the optimal functioning of a central furnace. This controller, designed by the trusted brand Honeywell, is compatible with their specific models and is powered by oil at 120V. Made in the United States, this product ensures efficient control and protection for your heating system. With its reliable performance and compatibility with Honeywell products, this controller is a essential part of any HVAC system.