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  1. Home
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  3. Water Heaters
  4. Tankless Water Heaters
  5. Richmond Essential by Rheem Electric Tankless Water Heater with External Digital Display, Whole Home, 27kW, 240V - RMTEX-27

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 RMTEX-27 Richmond Essential by Rheem Electric Tankless Water Heater with External Digital Display, Whole Home, 27kW, 240V - RMTEX-27
View 2 of  RMTEX-27 Richmond Essential by Rheem Electric Tankless Water Heater with External Digital Display, Whole Home, 27kW, 240V - RMTEX-27
View 3 of  RMTEX-27 Richmond Essential by Rheem Electric Tankless Water Heater with External Digital Display, Whole Home, 27kW, 240V - RMTEX-27
View 4 of  RMTEX-27 Richmond Essential by Rheem Electric Tankless Water Heater with External Digital Display, Whole Home, 27kW, 240V - RMTEX-27
View 5 of  RMTEX-27 Richmond Essential by Rheem Electric Tankless Water Heater with External Digital Display, Whole Home, 27kW, 240V - RMTEX-27

Richmond Essential by Rheem Electric Tankless Water Heater with External Digital Display, Whole Home, 27kW, 240V - RMTEX-27

SKU: 887731
$ 929 .36 / ea
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Product Details

Manufacturer: Rheem
Product: Water Heater
Water Heater Type: Tankless
Type: Tankless Water Heater
Capacity: On Demand
Flow Rate: 7 GPM
Modus Operandi: AC Electrical
Electrical Voltage: 240 Volt
Amperage: 112 amps
Wattage: 27 kW
Wire Size: 8 AWG
Height: 18-1/4"
Width: 17-5/8"
Depth: 3-1/2''
Connection Size: 3/4"
Connection Type: NPT
Pressure Rating: 150 PSI
Mpn # RMTEX-27
Shipping Dimensions 20.1" x 21.9" x 6.5"
Weight 19.14 lbs.

About the RMTEX-27

With its smooth performance and intelligent design, this water heater sets a standard!


The Richmond Essential RMTEX-27 tankless electric water heater offers efficiency and convenience for your hot water needs. This on-demand water heater is a reliable source of warm water for multiple-point-of-use applications. It features an external digital display, allowing for precise temperature control and easy monitoring. You can adjust the temperature in increments of 1 degree Fahrenheit (ranging from 80 to 140 degrees) to suit your preference.


What makes the RMTEX-27 tankless water heater unique is its self-modulating technology, which allows it to adjust power consumption to meet hot water demand. This feature enables you to save on your bill. Furthermore, it is integrated with robust copper immersion heating elements that enhance heat conductivity and provide strong resistance to corrosion for this electric water heater. Not only that, but it also has a compact style, suitably fitting into your designated space. Moreover, it operates on a power requirement of 240 volts, utilizing 27.0 kilowatts and drawing 113 amps, ensuring optimal performance. It also has a maximum flow rate of 7.0 GPM, guaranteeing a steady hot water supply for its designated application. Additionally, it requires an 8 AWG wire size and three pieces of 40A breaker upon installation for seamless operation.


Installing this on-demand water heater is guaranteed to be a breeze as it connects with the standard 3/4-inch NPT connections. Plus, it assures you of its quality thanks to the 5-year heating chamber warranty and 1-year parts limited warranty. Richmond by Rheem carries innovative and energy-efficient water heaters, providing a handy solution to your hot water heating needs. Hence, get this RMTEX-27 electric tankless water heater at an affordable price only here at PlumbersStock!


Did you know? Descaling your water heaters at least once a year can help extend their lifespan and reduce maintenance costs. You can visit our How to Flush a Tankless Water Heater FAQ to learn more about this matter. Are tankless water heaters worth your money? Feel free to read through this link: Are Tankless Water Heaters Worth It? You can also browse these tankless water heaters and find one that best suits your specifications.

Product Videos

Product Features

  • Energy-Efficient: This electric tankless water heater is best used in multiple point-of-use applications, supplying hot water where needed.
  • User-Friendly Interface: It is integrated with a digital display, providing visual feedback that allows seamless monitoring and simple operation.
  • Rapid and Consistent Heating: This water heater utilizes durable copper immersion heating elements, seamlessly meeting the demands of your hot water needs and assuring strong resistance against corrosion.
  • Safe and Reliable: It operates on 240 volts using 27.0 kilowatts, delivering a consistent and dependable hot water supply.
  • Easy Installation: This on-demand water heater requires an 8 AWG wire and has 3/4-inch NPT connections, simplifying the installation process.
  • Space-Saving: It has a compact style, seamlessly integrating into your designated location.
  • Quality Assurance: It comes with a 5-year heating chamber warranty and a 1-year parts limited warranty.
  • Durability: Proper maintenance can extend your water heater’s lifespan. One effective way to do this is to descale your water heaters at least once a year. This procedure removes mineral deposits and prevents clogs, maintaining the water heater’s efficiency.
  • Authentic: Manufactured by Richmond of Rheem, it ensures lasting value for your purchase.

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