: 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
: Most gas fireplaces and water heaters use a 750 millivolt (mV) generator. Some older or specific systems might use a 250mV version. Connection Type :
: Most common for fireplaces, featuring two wires with spade or fork connectors.
Before purchasing, check these specifications to ensure compatibility:
: 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