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🔥 Endless hot water, zero wasted energy — upgrade your flow game!
The Rheem 18kW 240V Tankless Electric Water Heater delivers continuous hot water on demand with a powerful 18kW output and a flow rate of up to 4.4 gallons per minute. Featuring a precise LED digital thermostat with ±1° accuracy and advanced self-modulating technology, it optimizes energy use to save up to 50% on heating costs. Its compact, wall-mounted design is 90% smaller than traditional tanks, making it perfect for space-conscious homes. Durable copper heating elements and easy threaded installation ensure long-term reliability and convenience.
| ASIN | B01MR7Z39V |
| ASIN | B01MR7Z39V |
| Best Sellers Rank | #101,046 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #112 in Water Heaters |
| Brand Name | Rheem |
| Capacity | 18 Gallons |
| Color | Gray |
| Customer Reviews | 4.2 4.2 out of 5 stars (2,003) |
| Customer reviews | 4.2 4.2 out of 5 stars (2,003) |
| Date First Available | 2 March 2017 |
| Efficiency | 99.8% |
| Flow Rate | 4.4 Gallons Per Minute |
| Global Trade Identification Number | 00020352685335 |
| Heat Output | 18 Kilowatts |
| Included Components | Fittings, Aerators |
| Is Discontinued By Manufacturer | No |
| Is Electric | Yes |
| Item Depth | 18.25 inches |
| Item Dimensions W x H | 36.8W x 46.4H centimeters |
| Item Type Name | Water Heater |
| Item Weight | 14.78 Pounds |
| Item model number | RTEX-18 |
| Manufacturer | Rheem |
| Manufacturer | Rheem |
| Manufacturer Part Number | RTEX-18 |
| Material Type | Stainless Steel |
| Maximum Pressure | 150 |
| Maximum Temperature | 140 Degrees Fahrenheit |
| Model Number | RTEX-18 |
| Mount Type | Wall |
| Power Source | AC Power |
| Product Dimensions | 46.99 x 36.83 x 8.89 cm; 6.7 kg |
| Special Features | LED Display |
| Style Name | Heater |
| UPC | 020352685335 |
| Unit Count | 1 Count |
| Voltage | 240 Volts |
| Wattage | 18000 watts |
A**R
The unit was easy to install and I use the existing hot water tank as a preheat tank. We are on a well and the water is very cold coming up out of the ground, so I set the tank at minimum and it heats the well water to roughly ambient temperature. My gas bill has dropped by 70% and my electric bill has only risen about 3%. This is the only way to go!
J**V
Bastante cumplidor aun para lo que yo esperaba ya que solo requiero una cantidad relativamente baja de agua caliente y da bastante mas de lo esperado, totalmente recomendable
A**O
Es buen producto, solo la instalción se complica por el cableado electrico que debe ser calibre 8 y que los interruptores deben ser dobles por el tema de 220V. Por lo demas puedo comentar que el agua se calienta rapido, se mantiene a buena temperatura (ajustable),
B**K
Great product, have been using ours for 2 years and it works great.
J**X
Love this tankless heater, it works great! Never run out of hot water while showering! There's only 2 of us in our home so not sure how it would work with a family but I'm sure a bigger size or maybe another mounted where hot water is needed most?? Would definitely buy again!!
Trustpilot
2 weeks ago
1 month ago