You can set independent ON and OFF points for each of the four relays between 0

The Rheem-Ruud SP12234C Natural Gas Water Heater Valve is a technical-grade gas control thermostat engineered for high-demand residential and commercial applications

this kit provides the durability required to handle demanding duty cycles in high-heat environments

provided the voltage

GC Valves S202GF02N5DG4 Solenoid Valve THPU32HP7Y You can set independent ONThe GC Valves S202GF02N5DG4 Solenoid Valve is a professional grade, 2 way normally open solenoid valve designed for reliable flow control in high demand HVACR and industrial fluid systems. Built with a heavy duty brass body and a 5 8" orifice, this 1 2" NPT solenoid valve utilizes a pilot operated diaphragm to achieve a zero differential pressure rating, making it ideal for low pressure applications. The 120Vac coil is Class F rated for superior