While primarily used in iced tea dispensers

this component ensures the correct BTU input and gas flow rate for residential and light commercial Amana and Goodman gas furnaces

The brass construction is suitable for natural gas

and propane

For contractors performing a furnace limit switch replacement

Marley Engineered Products 4520-2030-000 Thermal Fuse While primarily used in icedThe Marley Engineered Products 4520 2030 000 Thermal Fuse is an essential OEM replacement part designed for high limit temperature protection in QMark and Marley electric heaters. This Therm O Disc MicroTemp thermal cut off is engineered to interrupt the electrical circuit if internal temperatures exceed the critical 144C (291F) threshold, preventing equipment damage and ensuring system safety. As a genuine Marley heater repair part, it maintains the