For hydronic water heating applications

the H91 Series is designed to automatically regulate flow based on demand signals from thermostats or controllers

leak-proof seal for standard refrigeration lines

facilitating ion exchange to attract and contain hard water minerals before they can precipitate onto heating elements or tank walls

including the Aruba (AWR) series

Siemens Building Technology 535-490-36 Sensor 323055-751 For hydronic water heating applicationsThe Siemens Building Technology 535 490 36 is a rigid averaging duct sensor engineered for precise thermal monitoring in commercial air handling systems. This industrial grade duct temperature sensor features a 36 inch rigid probe housing a 100 Ohm Platinum RTD (Pt100) sensing element, providing high accuracy feedback across its 20F to 120F ( 7C to 49C) measurement range. Designed for field reliability, it converts thermistor readings into a standard