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6.4 GPM Liquid Propane Gas Mid Efficiency Outdoor Tankless Gas Water Heater
  • Rheem EcoSense
  • Model ECO150XLP3-1
  • Internet #206934717
  • Store SO SKU #

6.4 GPM Liquid Propane Gas Mid Efficiency Outdoor Tankless Gas Water Heater

$717.07 /each
Discontinued Model:

Model # ECO150XLP3

Internet #203222966

Store SO SKU #1000067436

Rheem EcoSense 6.4 GPM Liquid Propane Gas Mid Efficiency Outdoor Tankless Gas Water Heater
0020352608358

Discontinued Rheem EcoSense

6.4 GPM Liquid Propane Gas Mid Efficiency Outdoor Tankless Gas Water Heater

  • No standing pilot means less wasted energy
  • Outdoor installation eliminates the need for venting
  • Same-day installation in most areas. Call 1-855-400-2552 by noon.

Frequently Bought Together

Product Overview

The Rheem EcoSense ECO150XLP3 Outdoor Liquid Propane Gas Tankless Water Heater can provide up to 6.4 GPM at a 35° temperature rise. The 150,000 BTU Liquid Propane Gas Tankless Water Heater is designed to supply continuous hot water for up to 1 or 2 bathrooms at the same time. It heats water only when it's needed and has a 0.82 energy factor. This compact heater exceeds the requirements for many utility rebate programs. It comes with a remote digital thermostat that can be installed in almost any convenient area of the house. This heater's outdoor design requires no additional venting and features freeze protection to -30°F. This model can be used at elevations up to 9,840 ft. above sea level. Please click the specifications to view the Rheem Brochure Guide which will help you in your buying decision to ensure that you purchase the right tankless water heater model for your household needs.

  • Outdoor tankless gas water heaters require no additional venting
  • A 6.4 GPM tankless water heater at a 35° temperature rise can provide enough hot water to supply a 1-2 bathroom home
  • Tankless gas water heaters heat water on demand, saving energy compared to many standard gas tank-type water heaters
  • 12-year limited warranty on heat exchanger and 5-year limited warranty on parts
  • 0.82 energy factor meets or exceeds minimum energy efficiency standards
  • Remote digital display shows precise temperature setting and maintenance codes
  • Ability to link 2 like units together for high demand applications with the EZ-link cable (sold separately)
  • Hot start programming helps to minimize fluctuation in water temperature during periods of frequent on/off operation
  • High-altitude capability up to 9,840 ft. elevation about sea level
  • Environmentally friendly ultra low NOx burner meets SCAQMD rule 1146.2 requirements
  • Click here to check out our buying guide on water heaters
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Name 6.4 GPM Liquid Propane Gas Mid Efficiency Outdoor Tankless Gas Water Heater 9.5 GPM Liquid Propane Gas Mid Efficiency Outdoor Tankless Gas Water Heater 9.5 GPM Liquid Propane Gas Mid Efficiency Outdoor Tankless Water Heater 8.4 GPM Liquid Propane Gas High Efficiency Outdoor Tankless Gas Water Heater
Brand Rheem EcoSense Rheem EcoSense Rheem EcoSense Rheem EcoSense
Ratings (12) (0) (5) (0)
Flow Rate @ 45 F Rise (gallons/min) 5.6 7.4 7.4 6.6
Gas Type Liquid Propane Liquid Propane Liquid Propane Liquid Propane
Indoor/Outdoor Outdoor Outdoor Outdoor Outdoor
Eco Options Yes Yes Yes
Total BTU 150000 Btu 199900 Btu 199900 Btu 157000 Btu
ENERGY STAR Certified No No No Yes
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Customer Questions & Answers

22 Questions25 Answers

Customer Questions & Answers

6.4 GPM Liquid Propane Gas Mid Efficiency Outdoor Tankless Gas Water Heater
6.4 GPM Liquid Propane Gas Mid Efficiency Outdoor Tankless Gas Water Heater

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2 answers

does this have to be installed outside?

This question is from 6.4 GPM Liquid Propane Gas Mid Efficiency Outdoor Tankless Gas Water Heater
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New Hampshire
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March 27, 2016
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March 28, 2016
Answer: 
Yes, this is for outdoor installations only.
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March 28, 2016
Answer: 
Yes, this unit is required to be installed outside due to venting purposes.
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2 answers

Can this unit be used to heat water for an inground spa/Jacuzzi?

This question is from 6.4 GPM Liquid Propane Gas Mid Efficiency Outdoor Tankless Gas Water Heater
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March 5, 2016
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March 7, 2016
Answer: 
We have some electric units that are designed specifically for pools and spas. But any unit can work for them.
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March 6, 2016
Answer: 
No, this unit can not be used to heat water for an in ground spa/jacuzzi.
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2 answers

How many watts of power is needed?

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February 7, 2016
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February 11, 2016
Answer: 
The voltage and wattage load requirements for the water heater are detailed on the rating plate on the front of the water heater.
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February 10, 2016
Answer: 
The voltage requirements and wattage load for the water heater are specified on the rating plate on the front of the water heater.
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2 answers

Gas line

This question is from 6.4 GPM Liquid Propane Gas Mid Efficiency Outdoor Tankless Gas Water Heater
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Titusville, FL
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October 7, 2015
I have City Gas (outdoors) and have a gas line going to my outdoor Generac generator. Will this unit hook up to the gas line?
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March 7, 2016
Answer: 
You have NATURAL GAS running to your home..not propane. These are 2 very different types of gas.
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January 13, 2016
Answer: 
You should contact your local gas company or a licensed plumber to ensure that your gas line and incoming pressure is sized correctly.
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Customer Reviews

Rated 4.3 out of 5 by 12 reviewers.
Rated 5.0 out of 5.0 by Best way to have hot water. Take it out of box and hang it on the wall. It is propane gas, so hook your gas line , didn`t have to have a bigger gas line, used the one from the old 40 gallon gas hot water heater. Hooked the water line. Hook up electric wire and you are ready to have hot water. I can already tell I haven`t used much propane with this heater. My brother and I installed this tankless hot water heater. (I was the gofer). He has a tankless water heater in his house. August 5, 2014
Rated 5.0 out of 5.0 by Best customer service ever The best part of purchasing this product was the help that I received from Andres at the store on US1 and 32nd Ave. He found exactly what I needed and wrote up the order. It was interesting that while he was writing up the order a man came into the store specifically to thank Andres for the help he had given him with some gardening issues. Obviously this young man is a real asset to your store. April 5, 2016
Rated 4.0 out of 5.0 by Working great! We are very pleased with this on demand hot water heater. January 5, 2016
Rated 5.0 out of 5.0 by Quick, easy hot water Easy to mount outdoors on any surface, convenient connections at base of unit for water, electric, gas and controller. October 27, 2015
Rated 4.0 out of 5.0 by Good Value Just installed outside a seasonal cabin in Maine. Works well. Tap water runs hot fairly quickly. Plan to shut down and drain for the winter. No idea how it will hold up over time. July 14, 2015
Rated 4.0 out of 5.0 by Great product, TERRIBLE customer service :( Great product, we have several of these in our cabins. Fairly easy to install if you have electrical / plumbing skills. These work great, hold up to our cold winters here in NW NC. July 21, 2015
Rated 4.0 out of 5.0 by Instant Gas Heater Plumber and Gas installers had no problem installing the device and it was up and running within 45 minutes. Works wonderfully well, and the water is hot. Would definitely recommend. March 25, 2015
Rated 4.0 out of 5.0 by very functional the new hot water heater has performed very well, providing hot water in a matter of a minute or two. One feature is no possible water to leak into my home. March 26, 2015
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