Warranty & Registration Lookup
Register your Rheem product or verify your warranty terms and coverage.
Find a Pro
Put your water heater and heating and cooling system installation in good hands with a trustworthy, independent Rheem Pro.
Replace a Part
Find what you need to keep your Rheem equipment working perfectly.
Blogs
Read articles and industry news for homeowners and contractors.
Financing
Don’t let a limited budget keep you from getting the comfort equipment you need for your home or business.
FAQs
Get answers to all the most frequently asked questions (FAQs) about Heating, Cooling & Water Heating.
Who We Are
Learn more about Rheem, our history and our commitment to sustainability.
Sustainability
Learn about our commitment to doing good by our customers, our partners, our employees - and our planet.
Careers
Passionate, innovative thinkers work here, grow here and impact the next generation. We are driven to provide the perfect degree of comfort for homes and businesses.
Our Leadership
Find detailed profiles of our company's key executives, highlighting their professional backgrounds, expertise, and roles within the organization.
News Releases
Stay up to date with the latest news and press releases from Rheem Manufacturing and its family of brands.
Blogs
Read articles and industry news for homeowners and contractors.
svg-icon
Residential Products
svg-icon
HomeProductsResidentialWater HeatersProfessional Classic Series Tankless Electric RTEX-3.5, RTEX-06 kW

Professional Classic Series Tankless Electric RTEX-3.5, RTEX-06 kW

MODEL RTEX - 06
  • 5 Years - Leaks
  • 1 Year - Parts
  • See Use and Care Manual for complete information.
  • UEF up to 0.95
  • Flow Rate up to 1.6 GPM (See specification sheet for the GPM on each model)
  • Digital temperature control in 1-degree increments ranging from 80°F - 140°F (26°C - 60°C)
  • Two 0.35 GPM aerators are included for optimal temperature output and performance

SKU RTEX - 06
Warranty Years 5
Model Professional Classic Series Tankless Electric RTEX-3.5, RTEX-06 kW
Fuel Electric
Depth 3"
Height 7"
Width 11"
UEF
0.94
High Efficiency Yes
Kilowatts 6.5
Water Connector Size 32 16
Amps 27
Recommended Breaker Size 1 x 30 A Double Pole
Voltage 240
RecommendedWireSize 10 AWG
GPMTurnOn 0.25
Max Pressure Rating 150
Phase 1
PointOfUse 1

RTEX - 3.5 and RTEX - 06 are installed at the point-of-use. Ideal for use in a bathroom, office breakroom, wet bar, or an RV. The 120V POU 3.5 kW is suitable for one low flow faucet such as a small sink. The 240V POU 6.5 kW is suitable for one bathroom faucet or up to two low flow faucets running simultaneously. Both models include two optional 0.35 GPM aerators that thread onto the faucet to provide an even and consistent temperature and flow

PERFORMANCE FEATURES

  • Saves Space – Up to 98% smaller than a standard electric water heater
  • Saves Energy – Zero standby heat loss when installed at the point-of-use
  • High Efficiency – UEF up to .95 and advanced self-modulating technology only consumes the power needed to satisfy hot water demand
  • Durable copper sheathed heating elements are replaceable, easy to maintain and improves service life
  • Digital temperature control ranging from 80°F - 140°F (26°C - 60°C)
  • Designed to be mounted in an upright position with the inlet and outlet water connections at the bottom of the unit for ease of installation
  • Venting is not required to operate, simplifying the installation process compared to a gas tankless water heater
  • Includes two optional 0.35 GPM aerators (flow restrictors) for optimal temperature output and performance

WARRANTY

  • 5 Years - Leaks
  • 1 Year - Parts
  • See Use and Care Manual for complete information.

  • 5 Years - Leaks
  • 1 Year - Parts
  • See Use and Care Manual for complete information.

More Residential Rheem Products

Find additional documentation by viewing these related products.

Electric
Professional Classic Series: RTEX-04T, RTEX-06T

  • Efficient Design – UEF up to .95 and advanced self-modulating technology only consumes the power needed to satisfy hot water demand
  • Flow Rate up to 0.25 GPM
  • Digital thermostatic temperature controls in 1-degree increments ranging from 80°F - 140°F (26°C - 60°C)
  • Includes two optional 0.35 GPM aerators (flow restrictors) for optimal temperature output and performance
  • Stainless steel heat exchanger reduces corrosion for long life. 
  • Brass 1/2" NPT fittings located on the bottom for the inlet and outlet water connections.
Electric
Professional Classic Series: RTEX-04T, RTEX-06T

  • Efficient Design – UEF up to .95 and advanced self-modulating technology only consumes the power needed to satisfy hot water demand
  • Flow Rate up to 0.25 GPM
  • Digital thermostatic temperature controls in 1-degree increments ranging from 80°F - 140°F (26°C - 60°C)
  • Includes two optional 0.35 GPM aerators (flow restrictors) for optimal temperature output and performance
  • Stainless steel heat exchanger reduces corrosion for long life. 
  • Brass 1/2" NPT fittings located on the bottom for the inlet and outlet water connections.
Electric
Professional Classic Series Tankless Electric RTEX-04T kW, RTEX-06T kW
  • Efficient Design – UEF up to .95 and advanced self-modulating technology only consumes the power needed to satisfy hot water demand
  • Flow Rate up to 0.25 GPM
  • Digital thermostatic temperature controls in 1-degree increments ranging from80°F - 140°F (26°C - 60°C)
  • Includes two optional 0.35 GPM aerators (flow restrictors) for optimal temperature output and performance
  • Stainless steel heat exchanger reduces corrosion for long life
  • Brass 1/2" NPT fittings located on the bottom for the inlet and outlet water connections
Electric
Professional Classic Series Tankless Electric RTEX-04T kW, RTEX-06T kW
  • Efficient Design – UEF up to .95 and advanced self-modulating technology only consumes the power needed to satisfy hot water demand
  • Flow Rate up to 0.25 GPM
  • Digital thermostatic temperature controls in 1-degree increments ranging from80°F - 140°F (26°C - 60°C)
  • Includes two optional 0.35 GPM aerators (flow restrictors) for optimal temperature output and performance
  • Stainless steel heat exchanger reduces corrosion for long life
  • Brass 1/2" NPT fittings located on the bottom for the inlet and outlet water connections