Tankless Electric Deals

Claim Your Rheem RTEX-13 Tankless Water Heater Deal Before the Price Goes Up

On Sale Until the End of the Month 

Features and Benefits

  • On demand, consistent and endless hot water
  • 99.8% energy efficient
  • Robust copper immersion heating elements
  • Simple installation
  • Digital temperature display
  • External controls to adjust temperature
  • External digital display
  • Durable copper immersion single heating element
  • Compact and stylish with digital temperature control
  • Primary Warranty 5 years
  • Ships within 1 business day

These are brand new units and have a full manufacturer's warranty.

$280 & Shipping is FREE

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54 Amps
Required Breaker: 60 AMP
Wire Size: 6 AWG
Power: 13 kW
Energy Source: Electric
Water Connection:1/2 Inch
4.8 Gallon Per Minute Max Flow Rate
Fuel Type Electric
EF 0.99
Voltage 240
Install Location Indoor
Primary Warranty 5 Yrs


Water-Saver Shower Head – 1.5 GPM
Standard Shower Head – 2.0 GPM
Standard Hand Sink – 0.5 GPM
Kitchen Sink – 1 to 2 GPM
Bathtub – 4 GPM
Dishwasher – 1 to 2 GPM
Washing Machine – 1 to 1.5 GPM
Average Gallons Per Minute (GPM) based on 2010 Plumbing Standards


Heating Chamber – 5 Years
Parts – 1 Year


Product Depth (in.) 3.63″
Product Height (in.) 12.63″
Product Width (in.) 8.25″


Fuel Type: Electric
EF 0.99
Voltage 240
Kilowatts 8, 11, 13
Install Location Indoor
Primary Warranty 5 Yrs


Sizing Guide

Tankless Electric Water Heaters


What Our Clients Are Saying About the RTEX-13

It’s not just about the water heater, it’s also about the company you are buying it from
Miami Water Heater has been selling, installing, maintaining and repairing water heaters for over 70 Years

“I get crazy hot water to the hand sink in about 15 seconds, and it just runs and runs. I’m so impressed by it, that I’m buying another one for my office.” Clay H.
“George and the guys there were very nice, organized, timely and good prices too.” Charlie V.

“WOW this was the best move I’ve made in years. Space saver, takes care of 3bd 2.5 bath two story townhouse with 4 ppl in house.” Butch
“Great service and prices. They truly delivered as promised. They have a client for life.” Fernando C.

“It’s in the basement but does a great job of heating the water that we use for showers, dishwasher etc. it gets hot and stays hot! Great product.” Marlene T.
“Miami water heater was exceptional from the beginning to end. The owner Carlos is top notch and very professional.Glad I found them would recommend to anyone.” Carlos H.

“I have not been disappointed. It has worked like a champ. I can take a shower and have hot water for as long as I want. What I love most is that we are not paying to keep water hot in a tank all day, it only heats what we use – as we use it.” Tara W.



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