Best water heaters

Our top 3 picks

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  NEW Rinnai RX199iN Condensing Smart Sense Natural Gas or Propane Tankless Water Heater, Indoor or Outdoor Water Heater, Up to 11.1 GPM, 199,000 BTU

  The Rinnai RX199iN Condensing Smart Sense Tankless Water Heater offers versatile installation options, supporting both indoor and outdoor setups. With a compact design comparable to a small suitcase, it efficiently delivers up to 11.1 gallons per minute, making it ideal for large households with multiple simultaneous users. Powered by either natural gas or propane, it features Smart Sense gas control for seamless operation. Customers appreciate its reliable performance, particularly its ability to provide endless hot water, which is invaluable for families. While the electronic adjustments are simple to use, some users noted difficulties with the app functionality. For optimal maintenance, especially in hard water areas, additional valves for recirculating cleaning solutions are recommended. Overall, this tankless water heater combines efficiency with convenience, ensuring you never run out of hot water.
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  Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray

  The Rheem RTEX-24 24kW Electric Tankless Water Heater is an excellent choice for households seeking a reliable and efficient hot water solution. Its compact, suitcase-sized design allows for easy installation in tight spaces, making it ideal for homes where space is at a premium. This unit provides on-demand, continuous hot water, ensuring that even large families never face a shortage. With its self-modulating power control and adjustable digital temperature display, users can enjoy precise and efficient heating, leading to reduced electricity bills. The heater's capacity to deliver up to 5.9 gallons per minute makes it suitable for whole-house applications, providing ample hot water for multiple simultaneous uses. Customers have praised its consistent performance and energy efficiency, highlighting the significant savings on monthly utility bills. Overall, the Rheem RTEX-24 offers a blend of practicality and performance, making it a top contender for those in search of an effective tankless water heater.
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  Rheem 18kW 240V Tankless Electric Water Heater, Gray

  The Rheem 18kW 240V Tankless Electric Water Heater is a compact and efficient solution for providing on-demand hot water. Its advanced self-modulation technology ensures energy savings by adjusting power based on hot water demand. Ideal for small homes or apartments, this unit offers a space-saving design, replacing bulky traditional water tanks with a sleek and modern option. Customers appreciate the instant hot water supply and the additional storage space gained from its installation. With a flow rate of up to 4.4 GPM, it can comfortably support multiple household activities simultaneously. Easy installation and maintenance are facilitated by its threaded connections and digital temperature display. This heater is perfect for those seeking a reliable and efficient water heating solution with the added benefit of reduced energy costs.