and Ducane HVAC units

while Y90AA-4211 is the manufacturer sub-component identification

it is optimized for go/no-go status of fixed loads

The heavy-duty copper construction resists oxidation

Bradford White 415-42034-00 Thermostat and Ducane HVAC unitsThe Bradford White 415 42034 00 Thermostat is a genuine OEM surface mount temperature control designed for high performance residential and electric utility water heaters. As a direct factory replacement for discontinued part numbers 265 42034 00 and 219 40360 00, this component ensures precise thermal regulation and system safety. Engineered specifically for Bradford White electric water heater models, this thermostat manages heating element cycles