Buy Thermopile -

: "Universal" thermopiles often work with most major brands like Honeywell, Robertshaw, and White-Rodgers. However, for certain water heaters (e.g., Rheem or AO Smith), it may be better to use an OEM (Original Equipment Manufacturer) part to ensure the mounting clip fits perfectly.

To buy the correct thermopile, you must first confirm whether your system requires a or a thermocouple , as they are not interchangeable. A thermopile is essentially an array of multiple thermocouples connected in series to generate a higher voltage (usually 750mV ), which is necessary to power gas valves and accessories like wall switches or remotes. 1. Identify Your System Requirements buy thermopile

: Measure your existing thermopile's wire length. Common lengths include 24" , 36" , and 48" . It is safer to buy a longer lead and carefully coil the excess than to buy one that is too short. 2. Selecting a Product : "Universal" thermopiles often work with most major

You can find replacements through various retailers like Amazon or specialized parts stores like Stove & Grill Parts For Less . A thermopile is essentially an array of multiple

: Often used in specific pilot burner assemblies.

: Look for reputable manufacturers such as Honeywell (e.g., Q313 series), Robertshaw (e.g., 1950 series), or White-Rodgers . Replace Thermopile in Rheem Water Heater: Expert Q&A Guide