Corrosion-free, heavy gauge steel cabinet is insulated with 5/8 in. faced foil for noise suppression
Design allows for a closed loop system for heating which is isolated from the DHW system
For Use with Rinnai I-Series Combi Boilers (i090CN, i120CN, and i150CN)
Vertical configuration (upflow with left, right or side return) and horizontal configuration (upflow with bottom return)