Top 5 Best Gas Tankless Water Heaters (Propane & Natural Gas)

Tankless water heaters reduce your heating cost and this is not the only benefit of the tankless water heater. These water heaters are available in two types, gas and electricity. Both of them have their own features. This article is based on the best tankless water heaters gas reviews.

A gas tankless water heater helps you to save your money and also space. These water heaters provide you hot water instantly and are 80-85% energy-efficient appliances. Buying a tankless water heater is a smart decision and a long time investment. Because the best gas tankless water heater lasts longer than tank water heaters.

List of Best Tankless Water Heaters Gas

Finding the best product is difficult because you have to read so many reviews. And you have to spend lots of time in this research. But we have made this process easy because we have collected the best tankless water heaters gas. Here we review the best and the top-rated products of Amazon. This comparison table will help you to make a quick decision.

Portable Propane+Safety Shut-off Portable Propane+Safety Shut-off
Camplux Outdoor Tankless Water Heater
  • Power: 10KW
  • Temperature: 46-114.8℉
  • GPM: 1.32
  • Energy Efficiency : 80-85%
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Natural Gas: Indoor Installation+ThermaCirc360 technology Natural Gas: Indoor Installation+ThermaCirc360 technology
Rinnai V65IN Tankless Water Heater
  • Saves: 16 sq. foot
  • Temperature: 98-160℉
  • GPM: 6.5
  • Energy Efficiency : 82%
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High-End+Wi-Fi monitoring High-End+Wi-Fi monitoring
Rinnai RL Series Water Heater
  • Saves: 16 sq. foot
  • Temperature: 98-140℉
  • GPM: 9.4
  • Energy Efficiency : 82%
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Affordable+Automatic temperature control+Child lock Affordable+Automatic temperature control+Child lock
Eccotemp Tankless Water Heater
  • Power: 1440W
  • Temperature: Adjustable
  • GPM: 3
  • Energy Efficiency : 85%
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Temperature and water flow control feature Temperature and water flow control feature
Marey Propane Gas Tankless Water Heater
  • Warranty: 5-year
  • Temperature: 115°F
  • GPM: 3.1
  • Energy Efficiency : 87%
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1. Camplux Portable Propane Tankless Water Heater (Best Budget)

Camplux Outdoor Portable Propane Tankless Water HeaterA small portable unit with the lowest water startup that needs 3.0 PSI water pressure. This unit is specially made for US and Canadian markets. This is one of the best budget tankless water heater gas that is CSA approved for safety purposes. Which means this unit is safer than others. Providing 1.3-3.2 gallons per minute of hot water this unit has maximum temperature 46℃ and the minimum temperature 8℃.

It has all the safety features like flame failure device, oxygen depletion shutoff, and anti-freezing protection. That’s why camplux tankless water heater is safer and easy to use. You can also use this product for outdoor trips or for your horse or dog bathing. Enjoy unlimited hot water when you are outside of your house. According to the reviews, camplux water heater is the most reliable unit and can last longer.

This unit is also used for advanced water systems like a 12-volt water pump. A gas tankless water heater that is just available in liquid propane and is not used for drinking water. Line of camplux water heater is not recommended for elevation above 2000ft.

Things we like?
  • Safety feature
  • Portable
  • Outside use
  • Compact size
  • Affordable
  • 3.2GPM
  • Use for lowest water pressure
  • For your dog or horse bathing
Things we don’t like?
  • It does not have an ON/OFF switch

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2. Rinnai Tankless Water Heater (Top-Pick)

Rinnai V65IN Tankless Water Heater, Large, V65iN-Natural GasA high-efficiency tankless water heater that is only used and install indoor. This unit requires natural gas to warm water and provide 6.5 GPM hot water. Having 2 mobile app features you can control the timer and temperature of water through the day and can also set the unit to vacation mode. The thermacirc360 technology in this tankless water heater recirculates hot water and provides you unlimited hot water whenever you want.

Rinnai water heaters are compact size and can be fit everywhere even in the closet. This product is energy efficient and reduces energy consumption than any tank water heater.  It’s the most reliable product and the average like of this unit is more than 20 years. The component can be replaceable so instead of buying a new water heater, you can replace the damaged parts.

Rinnai is the #1 brand of gas tankless water in North America that will keep monitoring the efficiency of your product and will inform you in case of any break in service. Enjoy endless hot water with this amazing and affordable product that you will like for sure.

Things we like?
  • Reliable
  • Available in Natural gas or propane
  • Higher efficient
  • Compact size
  • Affordable
  • Voice activation enabled
  • 6.5 GPM hot water
  • Wide temperature range
  • Mobile app feature
  • 10-year warranty
  • Indoor installation
  • Quick hot water
Things we don’t like?
  • You cannot install it yourself
  • A little noisy with the exhaust fan

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3. Rinnai RL Series (High-End)

Rinnai RL Water Heater Indoor InstallationWhile taking shower you have to wait for hot water from your tank to the shower and during this wait, you waste lots of water. According to the research, a person wastes almost 8,700 bottles of water per year. Rinnai tankless water heater is the most expensive and best water heater that uses thermacirc 360 technology to heat water.

It recirculates hot water through your pipes to supply hot water fast. Either you want to do laundry or to wash dishes you will get unlimited hot that you will never run out of hot water. With its small suitcase size, you can save 16 square feet of space. The compact design of this water heater allows you to keep it anywhere even you can install it in a closet, attic, or in crawl space.

Rinnai tankless water heater gas is energy efficient and uses almost 40% less energy than tank water heaters. Wi-Fi monitoring is a unique feature of this unit. The trusted Rinnai service keep analyzing your product and will inform you whenever you experience a break in service or damage.

Rinnai tankless water heater is highly reliable and all the components that are used in this unit are replaceable. So instead of buying a new system, you can replace the components if any part of this product won’t work. Buying a durable and reliable product is just a small investment for the future that will last longer. Rather than buying cheap rate water heater buy an expensive product that will be beneficial.

Things we like?
  • Reliable
  • 20 years warranty
  • Recirculation technology
  • Voice activation enabled
  • Endless hot water
  • Save space
  • Compact size
  • Hot water on demand
  • Energy efficient
  • Wi-Fi monitoring
  • 9.4 GPM hot water flow rate
  • No wastage of water
  • For a large family
Things we don’t like?
  • Just for Indoor installation
  • Expensive

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4. Eccotemp i12-NG Tankless Water Heater

Eccotemp i12-NG Tankless Water HeaterAn indoor gas tankless water heater that activates on-demand and no extra energy is needed. It provides 3 gallons per minute of hot water that will be enough of a small family. This unit is safe to use especially for children because it has child lock technology. An energy-efficient unit that is compact in size and can be store anywhere in the house. This one is the best tankless water heater natural gas or propane.

This unit has a sleek black design with a glass touch panel that can be used easily. Having so many features like an automatic temperature control system and an energy-saving mode. A safe electronic system that can be installed in 5500 ft.  But is not recommended to use any higher.

It provides unlimited hot water either you are using one application or more. It will never run out of hot water and provide instant hot water. This system is best for cabins, cottage, and for vacations as well. You will get a stainless steel vent kit with this unit and also a 120-volt power cord that supplies power to the internal exhaust fan and the digital display.

Things we like?
  • Indoor system
  • Automatic temperature control
  • Glass display panel
  • Beautiful design
  • Affordable
  • Child lock technology
  • Energy safe mode
  • 3 GPM hot water
  • East to use and install
Things we don’t like?
  • Have just 2-year warranty
  • Temperature fluctuates sometimes

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5. Marey Power Gas Tankless Water Heater

Marey GA10LP Power 10L 3.1 GPM Propane Gas Tankless Water HeaterProviding endless hot water marey power heater is one of the best gas tankless water heaters at affordable prices. It will only provide hot water when needed. This tankless hot water can save up to 60% on electricity bills. It’s the most energy-efficient device.

This unit is compact in size that can be installed anywhere and saves lots of space. Electricity is not required for this system so it will be perfect for those areas and in those homes that experience frequent power outages. It has 3 knobs on its front surface that control gas and temperature levels and also control water flow. It provides 3.1 gallons per minute of hot water and has a warranty of 5 years.

You will get instant hot water that can use for kitchen, toilet, and shower, and for laundering.  Marey gas tankless water is easy to install and use.

Things we like?
  • Natural gas or propane gas
  • 1 GPM
  • Multiple points of use
  • No electricity needed
  • Instant hot water
  • 80% of energy saves
  • 5-year warranty
  • Easy to use
  • Temperature and water flow control feature
Things we don’t like?
  • Installation is not easy
  • You just have summer and winter option on the panel

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Finding the best tankless hot water heater gas is not easy but reading these reviews will help you to find the best product. If you want to buy a cheap tankless water heater that must be top-rated then camplux portable propane is the best budget gas tankless water having amazing features. But if you want an expensive product that lasts longer then the Rinnai RL series will be the best one.


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