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27kw Tankless Electric Water Heater with 5 Year Limited Warranty

Model # RTEX-27
Professional Classic Tankless Electric RTEX-27
Professional Classic Tankless Electric RTEX-27

27kw Tankless Electric Water Heater with 5 Year Limited Warranty

Model # RTEX-27
Max GPM 6.6
Recirc Incl. No
Warranty 5 Yrs
  • ON/OFF Dial Control with adjustable digital temperature display
  • Self-modulating power control
  • 24kW Model Flow Rate: up to 5.9 GPM for RTEX-24
  • 27kW Model Flow Rate: up to 6.6 GPM for RTEX-27
  • Bottom 3/4" NPT water connections


Professional Classic® tankless electric water heaters offer continuous hot water quick and on demand for single point-of-use or multiple applications

Performance Features
  • On demand, continuous hot water
  • Compact and stylish with digital temperature control in increments of 1°F ranging from 80°F to 140°F
  • 99.8% Energy efficient
  • Robust copper immersion heating elements with brass top increases durability and are threaded for easy replacement
  • Simple Installation
  • Digital temperature display
  • Standard Hand Sink – 0.5 GPM
  • Washing Machine – 1 to 1.5 GPM
  • Kitchen Sink – 1 to 2 GPM
  • Dishwasher – 1 to 2 GPM
  • Water-Saver Shower Head – 1.5 GPM
  • Standard Shower Head – 2.0 GPM
  • Bath Tub – = 4 GPM
  • Whole-Home – up to 6 GPM

Average Gallons Per Minute (GPM) based on 2010 Plumbing Standards

Unique Features

  • External Digital Thermostatic Control with LED display (+/- 1 degree accuracy)
  • Most advanced self-modulation, adjust power to meet hot water demand
  • Durable Copper Immersion three heating elements, field serviceable
  • Simple Installation – Bottom 3/4"NPT water connections

Product Info

Product Depth (in.) 3.5"
Product Height (in.) 18.25"
Product Width (in.) 17.63"
Fuel Type Electric
Voltage 240
Kilowatts 27
Install Location Indoor
Primary Warranty 5 Yrs
Max Single Shower Minutes
Number Of Back To Back Showers
Max GPM 6.6

Click here to view this water heater's Energy Guide at

Primary Warranty 5 Yrs

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