Hydrolevel 48-3250 Fuel Smart Hydrostat 3250-Plus

This universal aquastat replacement provides comprehensive temperature control and safety protection for oil boilers with cold start or warm start operation. The unit features an optional Thermal Targeting system (factory-disabled) that automatically adjusts boiler water temperature based on heat load changes, plus integrated boiler reset functionality that reduces operating temperature according to the number of heating zones to maximize fuel efficiency without compromising comfort. When installed on standard immersion wells, the device provides temperature limit and reset functions, while ElectroWell installations automatically activate low water cut-off protection to prevent dangerous low water conditions. The dial-type interface ensures easy setup and configuration, with industry-standard wiring for seamless replacement of existing aquastat models, 120v, 60 hertz