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Electric Tankless 240V / 22kW 4-Chamber Water Heater R4LS-220E

Electric Tankless 240V / 22kW 4-Chamber Water Heater R4LS-220E

Electric Tankless 240V / 22kW 4-Chamber Water Heater R4LS-220E

Model # R4LS-220E
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, 02139

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Product Description

Electric Tankless models are compact and easily fit on the wall next to the electrical breaker box. These 4-Element models provide continuous hot water when sized correctly. Units feature easily understood digital user interface. The temperature can be adjusted with simple “up” and “down” arrows and error codes are clearly displayed. No venting is required and replacement parts are easy to find.

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Certifications

5

year

limited warranty

0.92

Uniform Energy Factor

CSA International Low Lead Content Certification in compliance with U.S. and Canadian safety standards on gas components
  • UEF: 0.92
  • Limited Chamber Warranty: 5 Years
  • Max Wattage: 22000
  • Voltage: 240
  • Digital Display: Yes
  • Water Connection Location: 3/4
  • Type: Space Saving
  • Height: 18.13
  • Width: 17.00
  • Depth: 6.13
  • Shipping Weight: 20
  • Height: 18 1/8"
  • Width: 17"
  • Depth: 6 1/8"
  • Shipping Weight: 20

Endless Hot Water

The comprehensive line of State tankless water heaters are an excellent whole-home water heating solution that supply endless hot water when sized correctly.

Digital Display

State electric tankless water heaters have an easy to understand Digital Display. The Temperature can be adjusted with simple “up” and “down” arrows. Operational Error codes are clearly displayed.

Easy Maintenance

State electric tankless water heaters have no moving parts and standard heating elements can be replaced without removing the unit from the wall.

Space Savings

State electric tankless water heaters take up much less space that your conventional tank-style water heater. With no tank to steal valuable storage space, our wall-mount design allows for additional storage and flexibility.


How long would you like to enjoy a shower?

Cambridge, Massachusetts 02139

Change Location or Advanced Settings
Number of minutes you can enjoy a shower before running out of hot water. Assumes a 2.2 GPM flow rate.

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minutes

Single
Shower Length

Number of minutes you can enjoy a shower before running out of hot water. Assumes a 2.2 GPM flow rate.

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Number of back-to-back showers you can take without running out of hot water. Assumes a 2.2 GPM flow rate and an 8 minute shower length.

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Showers

Back to
Back

Number of back-to-back showers you can take without running out of hot water. Assumes a 2.2 GPM flow rate and an 8 minute shower length.

Need to view or change our assumptions? Access the advanced settings.

Close
Number of showers you can take at the same time without running out of hot water.Assumes a 2.2 GPM flow rate and an 8 minute shower length.

Need to view or change our assumptions? Access the advanced settings.
Showers

 At the Same Time

Number of showers you can take at the same time without running out of hot water.Assumes a 2.2 GPM flow rate and an 8 minute shower length.

Need to view or change our assumptions? Access the advanced settings.

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Biggest tub this water heater will fill without running out of hot water. Assumes a 5.0 GPM flow rate, and a 67% fill level.

Need to view or change our assumptions? Access the advanced settings.
gallons

Maximum Tub Size

Biggest tub this water heater will fill without running out of hot water. Assumes a 5.0 GPM flow rate, and a 67% fill level.

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Close
Number of minutes required to fill a 55 gallon tub. Assumes a 5.0 GPM flow rate and a 67% fill level.

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minutes

Time to Fill Tub

Number of minutes required to fill a 55 gallon tub. Assumes a 5.0 GPM flow rate and a 67% fill level.

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The estimated annual cost to operate this water heater in Cambridge, Massachusetts.

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$ Dollars

Estimated Energy Cost

The estimated annual cost to operate this water heater in Cambridge, Massachusetts.

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Many factors affect the actual performance of a water heater. This represents our closest approximation of your likely experience with this water heater in Cambridge, Massachusetts, but actual performance may vary depending on factors beyond our ability to control or estimate. To view or adjust our assumptions of the most common factors that impact this product’s performance in Cambridge, Massachusetts, please view the advanced settings. *Annual Estimated energy costs are estimated calculated from the energy efficiency of each water heater, your household’s estimated hot water usage & set temperature, the average groundwater temperature for your location, and residential energy prices for your location as reported by the Department of Energy and the Energy Information Administration.

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Product Features & Options

Endless Hot Water

The comprehensive line of State tankless water heaters are an excellent whole-home water heating solution that supply endless hot water when sized correctly.

Digital Display

State electric tankless water heaters have an easy to understand Digital Display. The Temperature can be adjusted with simple “up” and “down” arrows. Operational Error codes are clearly displayed.

Easy Maintenance

State electric tankless water heaters have no moving parts and standard heating elements can be replaced without removing the unit from the wall.

Space Savings

State electric tankless water heaters take up much less space that your conventional tank-style water heater. With no tank to steal valuable storage space, our wall-mount design allows for additional storage and flexibility.


UEF: 0.92
Limited Chamber Warranty: 5 Years
Max Wattage: 22000
Voltage: 240
Digital Display: Yes
Water Connection Location: 3/4
Type: Space Saving
Height: 18.13
Width: 17.00
Depth: 6.13
Shipping Weight: 20
Height: 18 1/8"
Width: 17"
Depth: 6 1/8"
Shipping Weight: 20

Certifications

5

year

limited warranty

0.92

Uniform Energy Factor

CSA International Low Lead Content Certification in compliance with U.S. and Canadian safety standards on gas components
place

Where to Buy

A. O. Smith water heaters are available through your local plumbing professional.

Literature

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