Best Deal on Rheem RTEX-18

Claim Your Rheem RTEX-18 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
  • Compact and stylish with digital temperature control in increments of 1°F ranging from 80°F to 140°F
  • Robust copper immersion heating elements with brass top increases durability and are threaded for easy replacement
  • Simple installation
  • Digital temperature display

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

$430 & Shipping is FREE

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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


5-Year heating chamber and 1-year parts limited warranty

Max Flow (GPM)



Sizing Guide

Tankless Electric Water Heaters
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What Our Clients Are Saying About the RTEX-18

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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