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Rheem Prestige Condensing Tankless Gas Indoor Natural Gas Water Heater With Built-in Recirculation 11.0 GPM - RTGH-RH11DVLN

  • Based on 19 reviews
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Availability: In Stock.
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Arrives Wednesday, Jun 5
Order within 13 hours and 49 minutes
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  • Hot water without the wait - or the waste
  • Low operating cost - High energy efficiency and water savings setting
  • Space Savings - Compact, space-saving design. Perfect for a tank replacement.
  • Water & Gas Leak Detection will shut down unit and provide an error code
  • Auto-Learn Programming - tracks water usage over a period of time and auto-programs to meet hot water needs at peak times


Rheem Prestige® RTGH-RH11DVLN-2 is a high efficiency condensing indoor natural gas tankless water heater designed for continuous hot water. The built-in recirculation pump with auto-learning programing not only provides instant hot water but also only provides it when needed. Industry leading low flow activation with a minimum flow rate and minimum activation flow rate of .50GPM. Ultra Low NOx burner meets SCAQMD rule requirements of safety for low emissions. Additional safety features include flame sensor, overheat cut off switch, gas and water leak detectors, and exhaust and water temperature sensors. Venting up to 100’ with 3” PVC or up to 50’ with 2” PVC pipe. Can be used with up to 5 bathrooms depending on inlet temperature; .94UEF (.96EF Canada), 199,000BTU efficiency. Professional installation is required otherwise warranty void. Warranty: 12yr heat exchanger, 5 yr parts and 1 yr labor.

Brand: Rheem

Color: Gray

Voltage: 120 Volts

Heat Output: 199000 British Thermal Units

Maximum Operating Pressure: 150

Brand: ‎Rheem

Color: ‎Gray

Voltage: ‎120 Volts

Heat Output: ‎199000 British Thermal Units

Maximum Operating Pressure: ‎150

Manufacturer: ‎Rheem

Part Number: ‎RTGH-RH11DVLN

Item Weight: ‎61.9 pounds

Product Dimensions: ‎14.8 x 17.3 x 28.7 inches

Item model number: ‎RTGH-RH11DVLN

Size: ‎11 GPM

Finish: ‎Stainless Steel

Shape: ‎Rectangle

Installation Method: ‎Wall Mount

Item Package Quantity: ‎1

Certification: ‎Energy Star

Usage: ‎Inside

Included Components: ‎Professional Condensing Tankless Gas Water Heater

Batteries Required?: ‎No

Warranty Description: ‎5 years parts, 25 years Heat exchanger - Residental, 18 years Heat exchanger - Commercial, 1 year labor

Date First Available: December 1, 2017

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jun 5

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

  • amazon service saved the day
Thank you amazon for expediting my order! This product was not as easy as swapping out a traditional water heater, but only because of the additional plumbing work like running new gas and water lines. Love the small footprint and the easy operation. Literally connect all the lines plug it in and hit power and boom, you're making instant hot water. This will save a lot of fighting with three kids showering at the same time every AM. ... show more
Reviewed in the United States on June 11, 2023 by craig coffey

  • Nice when it works, which isn't often enough
Update after 3.5 years: A second failure of the plastic flame sensor window occurred. However, the replacement unit for the original water heater (see below; this unit was replaced under warranty after a year of service; the replacement unit is 2 and a half years old) has developed a cracked heat exchanger. This will necessitate ANOTHER full unit replacement. This time, the labor warranty is expired so I'll get to do this replacement myself (or at my cost if I can't do it myself, but I can in my case). How to physically get the new unit is still unclear but I suspect another few hours on hold will get that sorted. Update 2 years later: After a massive amount of frustration, I discovered the issue with reliably heating water. There is a plastic window that goes between the flame sensor and the combustion chamber. I'm not sure why it's plastic instead of glass, but that plastic burned through/discolored to the point where the flame sensor could no longer see the flame. Replacing that half-cent piece of plastic fixed the problem. That half-cent piece of plastic costs $20 from Rheem. I'm really not impressed by the engineering on this piece of the heater. I suspect that this part will continue to fail every few years for the life of the heater. I purchased this product 11 months ago to replace an aging whole-house water heater, also from Rheem. The old one lasted 12 years before it started failing. The new one made it two months and failed. Rheem sent a service tech but they couldn't find anything wrong. It then failed again about a week later and they replaced the main computer board. 9 more months went by and it failed again with the same problem (no hot water, no attempt by the water heater to start). Two more service dispatches and they decided to replace the whole unit. Only now, Rheem and their contractor are arguing about who is supposed to actually get the new unit (their contractor says I have to buy one at my expense and get reimbursed). Long story short, I haven't had hot water in over a month and I have no resolution on how it will be fixed. Rheem's phone support said that this model is significantly less reliable than their previous ones. I love whole-house water heaters, but Rheem apparently no longer knows how to make them. ... show more
Reviewed in the United States on June 18, 2020 by Aaron G.

  • So glad we bought this water heater until it quit working!
Updated after 2 years: Great tankless water heater when it worked. I’ve had the same experience as Aaron G. (Review with 1 star) dealing with Rheem customer service and local plumber getting this unit replaced. It’s evident I purchased a lemon. I’m going on 4 weeks and Rheem has yet to resolve this issue and is expecting me to resolve it with the Distributor who doesn’t want to deal with Rheem’s warranty either! I rarely leave reviews, but I had to on this one. I wouldn’t want someone else to go thru what I’m going thru right now. ... show more
Reviewed in the United States on August 26, 2019 by Cassie Villarreal

  • Completely Unreliable
This water heater is non-functioning more than it’s working. Constant error codes and troubleshooting. Rheem customer service is helpful, but we have had so many showers ended early because the unit stopped working. Ad I have spent so many hours trying to fix everything that goes wrong. Stay away from any Rheem tankless product. ... show more
Reviewed in the United States on December 18, 2023 by Aaron

  • Check those internal gas fittings
After test firing unit slight gas smell occurred. Checked all my lines multiple times with bubble test and sniffer. No dice. Opened the unit up and found leaks on gas 2 of the 3 fittings inside. Came from the factory with multiple marks on the gas fittings where the assembler(s) and QA had checked the fittings. All marks were aligned. Those two came from the factory a full ~1/8 turn or more loose and leaking. I am otherwise happy with the unit and it's performance. ... show more
Reviewed in the United States on June 4, 2021 by Mitch

  • Worst purchase ever...
Installation was easy. That's the only good thing about this water heater. Repeated ignition error codes... replaced the igniter twice and the igniter module. Going back to a tank water heater... not a fan of sudden cold showers. Unfortunately, i did not purchase a warranty.
Reviewed in the United States on October 28, 2023 by Pops

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