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Revolutionary Heat Exchanger - Features our revolutionary 316L stainless steel heat exchanger that can withstand all thermal shocks and stresses and provinces superior corrosion and erosion resistance.  
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Masterless Cascading - Cascades up to 10 units together and eliminates single-point failure without patented Masterless Cascading technology. 
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Efficient Burner - Features a radially fired, downward-blowing, premixed burner with a negative pressure gas valve and plenum design. 
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Self-Descaling - Patented self-descaling design prevents lime-scale buildup.  
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Eliminate Mixing Valves & Lower Legionella Risks - With no storage tanks, there’s a lower risk for Legionella growth. By eliminating the need for mixing valves, this feature also reduces their associated unreliability and costs. 
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Multiple Venting Configurations - Include concentric, snorkeling terminations in different pressure zones and single-pipe vents, with smart common venting.  
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Numerous Levels of Built-in Safety Features - Prevent flue from back drafting, including fan speed.