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Super High Efficiency Residential 50 Gallon Electric Heat Pump Water Heater with 3.75 UEF

Rinnai Super High Efficiency Residential 50 Gallon Electric Heat Pump Water Heater with 3.75 UEF

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What size and rating electrical circuit does it require?


Hello Kevin, Per the Installation and Operation manual, the Rinnai REHP50 requires a dedicated 208/240‑volt, single‑phase electrical circuit. It must be connected to a 30‑amp breaker and is hardwired (no plug). The unit draws approximately 21.5 amps during operation, with a maximum input of about 4.9–5.0 kW, including the 4,500 W backup heating element. This information is for general guidance only. We recommend having this unit installed by a licensed electrician or qualified professional to ensure safe operation and compliance with local electrical codes.

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