Rinnai I-Series Combi Primary-Secondary Heating Kit
$712.00High-Performance Hydraulic Separation for Combi Boiler Systems
Maximize the efficiency of your Rinnai I-Series Combination Boiler with the factory-engineered Primary-Secondary Heating Kit 807000212. This kit is specifically designed to handle the unique flow requirements of “Combi” units, ensuring seamless transitions between central heating and on-demand domestic hot water while protecting your boiler’s internal components.
Grundfos 3-Speed Circulator Pump with Flange (UPS 15-58 Series)
$445.00Upgrade your home’s heating efficiency with the industry-leading Grundfos UPS Series. This 3-speed, wet-rotor circulator—complete with a custom-matched flange kit—is the “Gold Standard” for hydronic heating, offering unparalleled flexibility to match your system’s exact flow requirements while delivering near-silent operation and extreme reliability.












