Common Questions Does this hub include all necessary hardware

OEM Reliability: Direct manufacturer replacement (Part Number 510-300-013) designed specifically for spark ignition gas boilers

With a high flow capacity of 972

or improper fan-to-motor spacing (typically requiring 2-1/8" clearance on specific models)

Use a multimeter to check for continuity across the terminals when the switch is cold

Hydrolevel EW201 Electro-Well Common Questions Does this hubAs a seasoned technician, you know that a Hydrostat controller is only as good as its interface with the boiler water. The Hydrolevel EW201 Electro Well (Part Number 48 201) is the specialized 3 4" NPT immersion well required to unlock the Low Water Cut Off (LWCO) functionality on Fuel Smart Hydrostat models. Unlike standard brass wells that only transfer temperature, this Electro Well features a patented design with an integrated electrical insulator