Burnham Boiler 104450-01 Aquastat Relay THPU32HP7Y Internal 10K Ohm Sensitivity: Optimized

Internal 10K Ohm Sensitivity: Optimized for municipal water and general-purpose conductivity sensing

protecting the heat exchanger from dry-firing and catastrophic failure

If the circuit is open or the lead wires show signs of thermal degradation

OEM Compatibility: Authentic York S1-025-35358-000 replacement ensures correct mounting and terminal alignment for Source 1 equipment

Burnham Boiler 104450-01 Aquastat Relay THPU32HP7Y Internal 10K Ohm Sensitivity: OptimizedThe Burnham Boiler 104450 01 Aquastat Relay serves as the primary immersion controller for hydronic heating systems, regulating high limit protection and circulator functionality. This critical component is engineered to maintain precise water temperatures and prevent boiler overheating by interrupting power to the burner if the high limit set point is exceeded. As an OEM replacement part for Burnham hydronic boilers, it ensures seamless integration