Rinnai’s Ultra Series Tankless Water Heater delivers energy-efficient performance and features a condensing design with two heat exchangers to maximize heating value, enhance reliability and durability and reduce maintenance. It is fitting for any home upgrade. The series’ RUR models keep a steady supply of heated water in the supply line during active circulation periods by utilizing an integrated recirculation pump and internal bypass line, making faster hot water rapidly available in showers, sinks and appliances.

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