Rinnai CHS398100HCXVAIN Vertical Hybrid Water Heating System, 398,000 BTU, ASME

This vertical Rinnai CHS HCX hybrid system joins 398,000 BTU of condensing tankless heating to 119 gallons of ASME certified storage. It serves commercial buildings on natural gas that require an ASME certified tank and large volumes of hot water at peak times.

With the tankless engines doing all the heating, the storage vessel stays free of thermal stress, which supports a longer life and lowers the risk of downtime. Components can be repaired separately. The DuoSmart digital controller keeps temperature on target and controls recirculation with no aquastat, and the system is Wi-Fi capable.

The package arrives with a factory-fitted gas dirt leg, ready electrical access and a preassembled condensate drain. Its gas swivel flex line rotates 360 degrees for simpler connection. CU199 engines provide 97% thermal efficiency with Ultra Low NOx compliance and ENERGY STAR certification, and the system weighs up to 37% less than a high-efficiency tank.

Highlights

• 398,000 BTU condensing input with 119 gal of ASME certified storage

• Vertical configuration with ASME certified tanks

• CU199 engines rated at 97% thermal efficiency

• Ultra Low NOx compliant and ENERGY STAR certified

• DuoSmart control, recirculation capable and Wi-Fi capable

Specifications

Good to know

• Gas-fired appliance: it must be installed, vented and commissioned by a qualified installer in line with local codes and the manufacturer's installation manual.