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Rheem

Rheem RTG-70DVLN-3 High Efficiency Non-Condensing Indoor Tankless Natural Gas Water Heater 7.0 GPM, 160,000 BTUs

  • Based on 138 reviews
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Availability: In Stock.
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Arrives Wednesday, Apr 29
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Size: 7.0 GPM (Standard)


Color: Gray


Features

  • High-efficiency tankless gas water heater delivers up to 7.0 GPM, perfect for 23 bathroom homes with multiple hot water needs like showers and laundry.
  • Powered by natural gas with 160,000 BTUs, this durable tankless unit ensures fast, reliable hot watereven during peak household demand.
  • Designed for indoor installation, this high-efficiency tankless natural gas water heater features a durable, compact metal cabinet and supports easy wall mounting by a qualified installer.
  • Hot-start programming prevents cold water bursts, making this tankless natural gas water heater ideal for back-to-back showers.
  • Rheem RTG tankless gas water heaters offer high-efficiency, space-saving designs with multiple models to fit any home size, fuel type, and hot water demand.

Description

Rheem’s RTG-70DVLN-3 High Efficiency indoor non-condensing natural gas tankless gas water heater delivers continuous hot water with minimal wait, saving time, energy and water. The RTG-70DVLN-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 LeakGuard Leak Detection and Prevention monitors for potentially costly leaks providing you 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: 7 Gallons


Power Source: ac_dc


Product Dimensions: 13.5"W x 24.2"H


Special Feature: Integrated Digital Display, Hot-start Programming, High Energy Efficiency, Universal Venting Compatibility, 1/2 Gas Line Compatibility See more


Power Source: ac_dc


Special Features: Integrated Digital Display, Hot-start Programming, High Energy Efficiency, Universal Venting Compatibility, 1/2 Gas Line Compatibility


Wattage: 132 watts


Voltage: 120 Volts


Flow Rate: 7 Gallons Per Minute


Maximum Temperature: 140 Degrees Fahrenheit


Efficiency: 0.82


Mount Type: Wall


Is Electric: No


Color: Gray


Style Name: Natural Gas, 7.0 GPM, Indoor


Material Type: Stainless Steel


Capacity: 7 Gallons


Item Dimensions W x H: 13.5"W x 24.2"H


Item Weight: 46.5 Pounds


Item Depth: 10.27 inches


Brand Name: Rheem


Model Number: RTG-70DVLN-3


Manufacturer: Rheem


UPC: 020352761183


Manufacturer Part Number: RTG-70DVLN-3


Included Components: Display


Unit Count: 1.0 Count


Item Type Name: Water Heater


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Apr 29

This item is non-returnable:

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

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Recommended to me, and it seems fine.
Size: 9.5 GPM (Standard) Color: Gray
Working good. Installed well. So far so good. Heats water and junk.
Reviewed in the United States on January 27, 2026 by BHAM1229
    • ⭐ Rheem Tankless Water Heater – Peace of Mind and a Major Upgrade for My Family
Size: 7.0 GPM (Standard) Color: Gray
Review Image by CE
Review Image by CE
Review Image by CE
⭐ Rheem Tankless Water Heater – Peace of Mind and a Major Upgrade for My Family A couple of months ago, our traditional water heater failed unexpectedly. We didn’t have hot water for days, and with a family of four, that quickly became stressful. I started researching alternatives and decided to try a tankless system—something more modern, energy-efficient, and ideally less prone to failure. I landed on this Rheem unit and took the plunge. ⸻ 🛠️ My Setup Experience I’ve done some home improvement projects in the past, so I was comfortable tackling this. I took my time preparing and reading up on installation basics. It required planning—especially around venting and connecting to the existing setup—but once installed, the heater powered up, and hot water came on right away. One of the features I really appreciated was how compact the unit is. Once mounted, it freed up a lot of space where the old tank used to sit. I even took the opportunity to clean up and reconfigure the whole area—it felt like a reset for our utility space. ⸻ ✅ Real-World Benefits We’ve Noticed • Hot water is always ready. No more cold surprises in the middle of a shower. • Energy efficiency – It only runs when needed, unlike tank heaters that constantly keep water warm. • Space-saving – It cleared out floor space and helped make the room feel more open. • User-friendly display – The interface is simple, and adjusting the temperature takes seconds. ⸻ 💡 Lessons Learned One thing I really value is peace of mind—especially when I’m not home and my family needs something to work without fail. This unit delivered that. We’ve had guests stay over, and the system handled the extra demand effortlessly. My kids now even comment on how the water heats up “way faster than before.” ⸻ ⚠️ A Few Tips • The unit does require a dedicated power source and venting, so plan ahead. • For homes with multiple bathrooms, I’d recommend checking the flow rate to ensure it fits your household needs. ⸻ 🔚 Final Thoughts: This upgrade has made a noticeable difference in our daily routines. It’s dependable, efficient, and has already made our home feel a little more modern. I’m happy I made the switch and would definitely recommend this to anyone looking for a long-term hot water solution. ⸻ Let me know if you’d like this adapted for Inspire format, a quick summary caption, or a visual storytelling layout. ... show more
Reviewed in the United States on July 9, 2025 by CE
    • It’s so nice! ❤️ it
Size: 9.5 GPM (WiFi) Color: Gray
I have had this water heater for approx 2 months. So far it has worked great with no issues. It was fairly easy to install per my significant other. We had to do some adjustments in my laundry room to make it work. My old water heater wasn’t quite this big. I’m loving it. Last install ordered the wrong size water heater for my house some limped around with a water heater for 5 years before I finally was sick of the heater and the hoops we had to jump through to get it work. I’m very happy with this purchase. I haven’t done anything with the WiFi ability on this as of yet. ... show more
Reviewed in the United States on December 13, 2025 by wyo5
    • Beware!
Size: 9.5 GPM (Standard) Color: Gray
This unit is noisy lol had to move it to the garage...had to install extra plumbing etc....best idea would be to get one that can be outside.....less venting etc.....be sure you have a good plumber and plenty of $$$ on hand! Other than that....it's working well but l hear it needs to be serviced like every 6 months. ... show more
Reviewed in the United States on July 24, 2025 by Kathieinca
    • Replacing tankless hot water heater.
Size: 9.5 GPM (Standard) Color: Gray
Review Image by Disappointed customer
Purchased to replace existing tankless water heater same brand just an upgrade in models everything was pretty much the same with hoses and venting. I would recommend having someone else there to help attach to the wall. It took me and a friend about 2 1/2 hours to remove and install new tankless heater. Amazon had the best pricing and quickest delivery that I could find online next day by noon. Hopefully this tankless hot water lasts longer than the previous that lasted 9 years. ... show more
Reviewed in the United States on October 25, 2025 by Disappointed customer
    • lasted less than a year
Size: 9.5 GPM (Standard) Color: Gray
Its been less than a year since we bought this Water Heater and its not working. Takes long for water to warn up
Reviewed in the United States on March 24, 2026 by Carmen Salvo
    • NOT compatible with B vent
Size: 7.0 GPM (Standard) Color: Gray
a great replacement for my failed Bosch unit, unfortunately doesn't use the same vent as my old one.
Reviewed in the United States on April 9, 2026 by Kindle Customer
    • works good even with old piping
Size: 7.0 GPM (Standard) Color: Gray
works great and with the old undersized piping we have. has altitude adjustment. overall very happy.
Reviewed in the United States on December 3, 2025 by Kirill B.

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