This page provides diagrams for the different water‑heater installation configurations in standard applications. Tank-TypeTankless1-Zone Combi2-Zone Combi/Boiler Heat Pump Helper™ Standard Tank-Type Installation Diagram Heat Pump Helper™ Standard Tankless Installation Diagram Heat Pump Helper™ Standard 1-Zone Combi Installation Heat Pump Helper™ Standard 2-Zone Combi/Boiler Installation