A condensing design incorporating two heat exchangers helps the Ultra Series Condensing Tankless Water Heater maximize the water heating ability of every cubic foot of natural gas or propane it uses. A down-fired ceramic burner allows condensation to drain from the bottom of the heat exchanger. The process protects the primary heat exchanger burner and maintains performance over time. The unique design allows the unit to earn up to a 0.96 Energy Factor. Available in four models ideal for mid- to large-size homes. Rinnai | 800.621.9419 | rinnai.us
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