Product Details
The Rinnai Demand Duo H-series is a high-performance, high-efficiency indoor water heating system featuring hybrid technology designed to produce abundant hot water during peak commercial hours while offering up to twice the lifespan of most tanks. The system has a Uniform Energy Factor (UEF) of 1.97, with a minimum input of 15,000 BTU (4.3 kW) and a maximum input of 160,000 BTU (46.9 kW). The compact design fits various spaces and includes advanced features such as a digital display, energy usage tracking, freeze protection, glass-lined tank, overheat protection, temperature pressure relief valve, WiFi connectivity, and Ultra Lonox technology. Professional installation is recommended.








