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Rheem

Rheem RRTGH84DVLN3701171 Rheem RTGH Series 8.4 GPM 157,000 BTU 120 Volt Residential Indoor Natural Gas Tankless Water Heater Stainless Steel

  • Based on 146 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Jul 8
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Size: 8.4 GPM (No WiFi)


Features

  • Flow rate of 0.4 - 8.4 GPM
  • Available temperature settings range from 100 to 140F (default setting of 120F)
  • Includes electric ignition
  • Covered under 1 year labor, 15 year heat exchanger, and 5 year parts manufacturer warranties
  • Width 17-11/16-in

Description

Rheem’s RTGH-84DVLN-3 Super High Efficiency indoor condensing natural gas tankless gas water heater delivers continuous hot water with minimal wait, saving time, energy and water. The RTGH-84DVLN-3 features exclusive Hot Start Programming which keeps the water heater in a ready state eliminating cold water bursts with back-to-back uses. Rheem’s exclusive Overheat Film Wrap provides heat exchanger overheat protection and peace of mind while you enjoy efficient, continuous, no wait hot water in your entire home. The compact size, wall mount and industry leading installation clearance allows for installation in small spaces, saving valuable floor space.

Brand: Rheem


Capacity: 8.4 Gallons


Power Source: fuel_powered


Product Dimensions: 17.7"W x 23.7"H


Special Feature: Exclusive Hot Start Programming, Overheat Film Wrap, Electric Ignition


Power Source: fuel_powered


Special Features: Exclusive Hot Start Programming, Overheat Film Wrap, Electric Ignition


Wattage: 132 watts


Voltage: 120 Volts


Flow Rate: 8.4 Gallons Per Minute


Maximum Temperature: 140 Degrees Fahrenheit


Heat Output: 157000 British Thermal Units


Efficiency: 0.93


Mount Type: Wall


Is Electric: No


Capacity: 8.4 Gallons


Item Dimensions W x H: 17.7"W x 23.7"H


Item Weight: 59.88 Pounds


Item Depth: 9.8 inches


Material Type: Stainless Steel


Brand Name: Rheem


Model Number: RTGH-84DVLN-3


Manufacturer: Rheem


Manufacturer Warranty Description: 1 Year Labor, 15 Year Heat Exchanger, 5 Year Parts


UPC: 662021564284


Manufacturer Part Number: Natural Gas


Included Components: Product Only


Unit Count: 1.0 Count


Item Type Name: Water Heaters


Color: Gray


Style Name: Indoor Installation


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jul 8

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews

    • 6 years old and still works great
Size: 8.4 GPM (No WiFi)
My instant hot water heater has been hooked up and running for about 5-6 years now. Works great. I have had no issue with it. I winterize every winter and then it fires right back up in the spring.
Reviewed in the United States on April 17, 2026 by Justin Davidson
    • Great unit. Easy to adjust and never run out of Hot Water!
Size: 8.4 GPM (No WiFi)
Love the unit but it quite a challenge to install.... Lots of parts.
Reviewed in the United States on April 17, 2026 by F. Michael Simmons
    • Great Product
Size: 8.4 GPM (No WiFi)
I love the design and feasibility of this product. It was nice that it only takes 120V. And the instructions were very very helpful for installing. Performance of this heater has been great so far after 4 months. I’m able to run a couple showers and the dishwasher and a couple of sinks. The water pressure does drop a little bit as that is a lot of load for hot water, but this heater works great for our needs, as that load is not a normal lineup we do. Our home is a 3 bedroom, 2.5 bath. Our electric bill also dropped about 75% and the gas bill did not go up that much due to the efficiency of this product. ... show more
Reviewed in the United States on June 5, 2024 by Austin Schindler
    • Great water heater.
Size: 8.4 GPM (No WiFi)
Performs exactly as described. Our bedroom shares a wall with the garage where the water heater is installed so was concerned about noise but have not heard a thing. Kitchen is 50+ feet away and the water there heats up faster than the tank heater it replaced. I am thinking some of the other concerns that were posted may be due to poor installation? Not sure but very, very happy with this unit. ... show more
Reviewed in the United States on January 12, 2025 by BKIST
    • Adjustable temperature to 140°
Size: 8.4 GPM (No WiFi)
It works, can adjust temperature upto 140°. Don't like the intake and exhaust port setup.
Reviewed in the United States on August 7, 2025 by Bruce B.
    • There is a small trade-off.
Size: 8.4 GPM (No WiFi)
It takes a little longer to warm up than our tank type. But, once it gets there it is never ending. Great for us who like half hour showers. Overall, it is a great improvement to our home.
Reviewed in the United States on April 22, 2025 by Bill Sehl
    • Junk
Size: 8.4 GPM (No WiFi)
Hasn't worked since purchase. Routinely have to reset water heater. 100% junk, Rheem customer support is as useless as their equipment.
Reviewed in the United States on August 13, 2025 by Robert Summerville
    • Smaller water heater
Size: 8.4 GPM (No WiFi)
Love it !!
Reviewed in the United States on January 3, 2026 by Tami Heidenthal

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