Product Details
The Rinnai® Demand Duo™ H-Series is a high-performance, high-efficiency hot water system featuring hybrid technology that offers a longer service life than traditional high-efficiency tanks while saving valuable commercial space. The Demand Duo™ 2V includes vertically stacked tankless engines to provide redundancy and prevent outages, ensuring continuous hot water supply. It has a Uniform Energy Factor (UEF) of 0.98, with a minimum input of 15,000 BTU (4.3 kW) and a maximum input of 398,000 BTU (116.6 kW), designed for indoor use. The system offers up to twice the lifespan of most tanks and a compact size to fit various installation spaces. Water heater features include a digital display, energy usage tracking, freeze protection, glass-lined tank, overheat protection, temperature pressure relief valve, WiFi connectivity, and Ultra Lonox technology.








