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8.4 GPM Natural Gas High Efficiency Outdoor Tankless Gas Water Heater
  • Rheem
  • Model ECOH160XLN-1
  • Internet #206934557
  • Store SO SKU #

8.4 GPM Natural Gas High Efficiency Outdoor Tankless Gas Water Heater

$120133 /each
Discontinued Model:

Model # ECOH160XLN

Internet #203404944

Store SO SKU #1000067464

Rheem EcoSense 8.4 GPM Natural Gas High Efficiency Outdoor Tankless Gas Water Heater
0020352612256

Discontinued Rheem EcoSense

8.4 GPM Natural Gas High Efficiency Outdoor Tankless Gas Water Heater

  • Same-day installation in most areas. Call 1-855-400-2552 by noon.

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Product Overview

The Rheem EcoSense 8.4 GPM 157,000 BTU Natural Gas Condensing Tankless Water Heater offers a reliable source for a variety of residential hot-water applications. It is highly energy efficient and features a durable 157,000 BTU burner that heats water only when it's needed. This Outdoor, tankless water heater is rated for Ultra low NOx emissions and features an overheat limiter for safe operation. It is Energy Star qualified for enhanced energy and cost savings. 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 number based on your application support type and demographic area for water temperature.

  • Outdoor tankless gas water heaters require no additional venting
  • A 8.4 GPM tankless water heater at a 35° temperature rise can provide enough hot water to supply a 2 to 3 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
  • 0.92 energy factor meets or exceeds minimum energy efficiency standards
  • Remote digital display shows precise temperature setting and maintenance codes
  • ENERGY STAR qualified to meet or exceed federal guidelines for energy efficiency
  • Ability to link two like units together for high demand applications with the EZ-link cable (sold separately)
  • Up to 94% efficient - lowest operating cost
  • Hot start programming helps to minimize fluctuation in water temperature during periods of frequent on/off operation
  • 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 Natural Gas 9.0 GPM High EF Outdoor Tankless Water Heater with Water Savings Setting and 12-Year Warranty 8.4 GPM Natural Gas High Efficiency Outdoor Tankless Gas Water Heater 8.4 GPM Natural Gas High Efficiency Indoor Tankless Water Heater 9.5 GPM Natural Gas High Efficiency Outdoor Tankless Gas Water Heater
Brand Rheem Rheem EcoSense Rheem Rheem
Ratings (3) (6) (5) (7)
Eco Options Yes Yes Yes Yes
Total BTU 180000 Btu 157000 Btu 157000 Btu 199900 Btu
Indoor/Outdoor Outdoor Outdoor Indoor Outdoor
Gas Type Natural Gas Natural Gas Natural Gas Natural Gas
Flow Rate @ 45 F Rise (gallons/min) 7.5 6.6 6.6 8.4
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Customer Questions & Answers

Propane Conversion?

Can this unit be converted to run on propane, and if so, what will that do to the efficiency or GPM rating?
Asked by: Jack
No, this unit cannot be converted to use Propane.
Answered by: CommunityAnswer
Date published: 2016-02-18

How much does installation cost?

How much does installation cost?
Asked by: Seadad
Installation costs vary across the US. Contact you local Home Depot store for costing.
Answered by: Rheem
Date published: 2017-04-03

Is there any reason this unit can not be installed indoors, such as in the basement of a home, and use a vent?

Asked by: harry
Because is designed for outdoor use only and there is no vent attachment for this water heater.
Answered by: Rheem
Date published: 2016-10-31

Is a 1/2" gas supply at 2 PSI enough volume for this unit?

I have seen a few 1/2" supply lines connected to the 3/4" connection. Is this enough volume?
Asked by: mac
You can use ½" gas lines but you will 4 to 10.5 inches water column gas pressure to function properly. If you have any other questions contact our technical support team at 800-431-1549 – 7 to 7central time, 7 days a week, this includes weekends and holidays.
Answered by: Rheem
Date published: 2016-08-21
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Customer Reviews

8.4 GPM Natural Gas High Efficiency Outdoor Tankless Gas Water Heater is rated 3.8 out of 5 by 6.
Rated 5 out of 5 by from 6 months of usage, and meets expectations The supply of hot water is more than adequate for our reasonably small family. We decided to buy a unit that exceeded our demand because the incremental price was so small. Our unit was installed by a general contractor who failed to read the installation instructions. The unit kept shutting off every time we used it, and needed to be reset. The reason is because there was a drain plug that needed to be removed. It was clearly marked "REMOVE UPON INSTALLATION". I called tech support to report the error code on the control panel, and they guided me to this drain plug immediately. That solved the problem. Excellent customer support. I'm going to remind everyone that tankless means "unlimited" hot water. It doesn't mean "instant" hot water. Depending on the ambient temperature, we get hot water in seconds or minutes. The longest run is 30 feet to the most distant sink. To offset the delay in the hot water arriving, I bought an under-sink, 4 gallon, 120v hot water heater. This gives me the water needed while the tankless delivers the rest.
Date published: 2014-09-16
Rated 3 out of 5 by from Please making sure your gas pipe is big enough before you buy it! My house has the existing 1" gas pipe and this water heater request 3/4" gas inlet. I thought I can replace my old tank water heater with this little water heater. After city came to inspect, I learned that because the BTU of this water is 157,000, It use 3 times more gas than my old one. After inspector's calculation, the existing 1" main gas line is not big enough for current gas appliances plus this water heater. Now, I spent several thousand dollar to install new dedicated 1" gas line just for this water heater. Please making sure that you have a large gas pipe before you buy it! Also remember, the unit doesn't come with service valves and local Home Depot store don't sell it!
Date published: 2015-06-05
Rated 2 out of 5 by from You'll need a bigger gas line if installing in an older home. Make sure your gas line is big enough to support the heater. I spent more on gas upgrades than I paid for the heater. Remember there will be considerable lag time between turning on the heater and getting hot water to the faucet. You will also have an annual service call for a plumber to descale the unit.
Date published: 2015-12-29
Rated 5 out of 5 by from Hot Water is a beautiful thing!!! We transitioned from a traditional electric water heater tank to a tankless system. Wish we had done this a long time ago!! Bonus....reclaimed space in laundry room!!
Date published: 2016-01-26
Rated 4 out of 5 by from A plumber installed the unit. A little complicated but with a qualified installer, it was not a problem The unit seams to be performing very well although it has only been in use a short time.
Date published: 2014-04-17
Rated 4 out of 5 by from Good Value - Tankless Water Heater The unit was fairly easy to install and thus far is working well.
Date published: 2015-09-07
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