Here you have my list of best Best tankless gas water heaters, all very different in price, style, and design, so you have plenty of options to choose. Please keep reading.
We spent 65 hours to find a best option for you is a Rinnai RL Series HE+ Tankless Hot Water Heater: Indoor Installation, which comes with amazing features you’ve never heard before.It is the Best tankless gas water heaters available in the market today. However, if you don’t want to spend big on tankless gas water heaters, then you should absolutely go for Eccotemp i12-NG Tankless Water Heater which comes with all the basic features one could expect in tankless gas water heaters.
To help you in your search, we have completed this list of the Best tankless gas water heaters.
Top 10 Best Tankless Gas Water Heaters
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Rank
Product Name
Score
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1
Rinnai RL Series HE+ Tankless Hot Water Heater: Indoor Installation
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2
Eccotemp i12-NG Tankless Water Heater
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3
Marey Power Gas 10L 2.7 GPM Natural Gas Digital Panel Tankless Water Heater
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4
Rinnai V Series HE Tankless Hot Water Heater: Indoor Installation
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5
Rinnai V Series HE Tankless Hot Water Heater: Outdoor Installation
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6
Rheem 240V 2 Heating Chambers RTEX-18 Residential Tankless Water Heater
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7
Hydro Master 3/4
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8
Rheem RTGH-95DVLN 9.5 GPM Indoor Direct Vent Tankless Natural Gas Water Heater
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9
Takagi T-H3-DV-N Condensing High Efficiency Natural Gas Indoor Tankless Water Heater
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10
Marey Power Gas 10L 3.1GPM Natural Gas Tankless Water Heater
1. Rinnai RL Series HE+ Tankless Hot Water Heater: Indoor Installation
Our high-efficiency plus RL models, offer Rinnai’s most advanced technology in non-condensing tankless water heaters You’ll enjoy the endless hot water and energy savings you expect, with the addition of Wi-Fi monitoring and recirculation technology for faster hot water delivery.
- Endless hot water for your entire home
- RL94iN HE+ High Efficiency Tankless Hot Water Heater - Natural Gas: Indoor Installation Only
- Up to 9.4 GPM hot water flow rate (varies by groundwater temp)
- Circ-Logic technology allows you to set recirculation patterns that coincide with your typical habits. Hot water is available when you need
- Residential Factory Warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts).10,300 BTU (Minimum) / 199,000 BTU (Maximum
2. Eccotemp i12-NG Tankless Water Heater
The Eccotemp i12-NG has a new revolutionary design, making it unlike any other tankless water heater on the market today This model features a sleek black glass casing, fully automatic temperature controls for precision, touch screen, and LCD temperature display which shows output temperature as well as GPM flow Rated at an impressive 3 GPM, the Eccotemp i12-NG Tankless Water Heater is a natural gas fired, indoor model designed for small to medium hot water production where you need more than one hot water application at the same time.
- Whole home indoor, gas powered tankless water heater, rated at 3 GPM that activates only on demand and no pilot light needed, reducing energ
- Sleek, modern design with black tempered glass front panel featuring an easy to use LED display controls
- Features fully automatic temperature controls with an energy saving mode and child lock technology
- Safe electronic ignition system; Plugs into standard 110v electrical outlet with UL-listed cord. Field tested to 5500 ft. elevation (not rec
- Uses standard 1/2" NPT water fittings and comes with horizontal venting allowing for a convenient and quick installation
3. Marey Power Gas 10L 2.7 GPM Natural Gas Digital Panel Tankless Water Heater
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- Digital Temperature Display
- Compact design saves space and allows for easy installation just about anywhere
- Does not require electricity (operates with 2 D Cell battery)
- Only uses gas while water is flowing
- Saves water and up to 60% less electricity than conventional tank water heater, making it cost effective and
4. Rinnai V Series HE Tankless Hot Water Heater: Indoor Installation
V75iN is the perfect combination of high efficiency, comfort and value in a natural gas tankless water heater from Rinnai Ideal for small to medium homes or remodels, compact, easy-to-install, reliable and perfect for indoor locations; Rinnai products provide peace of mind with warranties that surpass the competition.
- Endless hot water for your entire home
- V75iN HE High Efficiency Tankless Hot Water Heater - Natural Gas: Indoor Installation Only
- Up to 7.5 GPM hot water flow rate (varies by groundwater temp)
- Control-R 2.0 mobile app features timers and schedules throughout the day and allows you to remotely put the system into vacation mode.
- Residential Factory Warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts)
5. Rinnai V Series HE Tankless Hot Water Heater: Outdoor Installation
V65eN is the perfect combination of high efficiency, comfort and value in a natural gas tankless water heater from Rinnai Ideal for small to medium homes or remodels, compact, easy-to-install, reliable and perfect for outdoor locations; Rinnai products provide peace of mind with warranties that surpass the competition.
- Endless hot water for your entire home
- V65eN HE High Efficiency Tankless Hot Water Heater - Natural Gas: Outdoor Installation Only
- Up to 6.5 GPM hot water flow rate (varies by groundwater temp)
- Control-R 2.0 mobile app features timers and schedules throughout the day and allows you to remotely put the system into vacation mode.
- Residential Factory Warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts)
6. Rheem 240V 2 Heating Chambers RTEX-18 Residential Tankless Water Heater
Professional classic® tankless electric water heaters offer continuous hot water quick and on demand for single point-of-use or multiple applications.
- External digital thermostatic control with LED display (+/1 degree accuracy)
- Most advanced self-modulation, adjust power to meet hot water demand
- Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
- Simple installation - bottom 3/4 inch NPT water connections
- Threaded for easy replacement, simple installation, digital temperature display
7. Hydro Master 3/4
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- Lead Free Brass- Meets all federal & state standards for lead levels in drinking water system components
- Tankless Water Heater Service Valves 500WOG, colored valve handles for easy identification of hot and cold valves
- Include a residential pressure relief valve (150 PSI/500,000 BTU)
- Certified by CSA Group
- Easy to Install
8. Rheem RTGH-95DVLN 9.5 GPM Indoor Direct Vent Tankless Natural Gas Water Heater
All Rheem heating, cooling and water heater heating products meet and exceed rigorous industry standards for quality and reliability From raw material delivery to finished product assembly, each phase in the manufacturing process is effectively overseen to ensure the highest quality in water heater manufacturing Rheem products are frequently tested and certified by various government and third-party testing labs to ensure quality standards.
- 94-Percent Energy efficient with stainless-steel condensing heat exchanger
- Intelligent electronic controls designed to increase energy efficiency and safety
- Third party efficiency listed by AHRI
- Up to 38-Feet of 3-Inch PVC Pipe or 5-Feet of 2-Inch PVC Pipe
- Low Nox Version
9. Takagi T-H3-DV-N Condensing High Efficiency Natural Gas Indoor Tankless Water Heater
With gas inputs of 199,000 BTU, the T-H3 can produce enough hot water for four bathrooms in warmer climates or three baths in colder climates.
- Endless hot water, On-demand usage, Compact, Space saving, Energy conservation
- Computerized safety features, No pilot light to have to worry about
- Satisfies the 2023 SCAQMD Rule 1146.2 for Ultra-Low NOx Emissions
10. Marey Power Gas 10L 3.1GPM Natural Gas Tankless Water Heater
MAREY GA10NG Indoor Natural Gas Tankless Water Heater can provide up to 4 3 Gal per minute for a perfect shower at 115°F output water temperature It is also called water heater on demand, because it heats water only when needed, saving energy It is designed in the USA and it's perfect to supply endless hot water for up to 2 or 3 points of use simultaneously (for a variety of residential hot-water applications).
- Compact design saves space and is easy to install almost anywhere
- Works easily with low levels of water pressure. Only uses gas while water is flowing
- Provide endless hot water on demand and only as needed
- Unlimited hot water whenever is needed
- No electrical connection is required, it's perfect alternative for those homes experiencing frequent power outages
- Allows water temperature to be controlled
- Cost-effective and
- Can last a lifetime, keeping 87% efficiency level
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