Tankless Gas Water Heaters could provide huge energy savings, but selecting the best brand for your home isn’t always as easy as we’d like. There are a variety of aspects to be considered before making any purchases.
We’ve picked 10 different models that offer tankless heaters that we’ve reviewed for you to understand the differences between models. We’ll share the things we liked and didn’t like about each of them as well as a brief buyer’s guide in which we’ll look at what you can expect from any model.
Join us as we discuss the size of the unit, heated gallons per minute, installation, security features, and much more to aid you in making an informed decision about purchasing.
Things To Look For In The Best Tankless Gas Water Heaters
- Gallons per Minute: No person wants to have hot water running out, mainly when it’s cold. This is why it’s essential to choose a propane tankless heater that has the right gallons per minute ratio that ensures a constant warm water supply.
- Proper Venting System: The propane tankless heater must be equipped with an appropriate venting system, which could be challenging. Proper venting is accountable for a variety of safety features and also for directing gas from the house to stop unnecessary heating.
- Warranty Warranty: It’s crucial to ensure that the gas heater is backed by a valid warranty that includes the company to assist you when a problem occurs. Be aware. Some companies offer extended warranties only if you buy an accredited professional to set up your system.
- Anti-freeze cold security: Most of the top propane tankless heaters come with reliable services and computerized features to ensure safety specifically designed for regions with more freezing temperatures where temperatures can are at a minimum. In any case, reliable tankless gas water heaters must have these features.
- Energy-factor: According to research, the energy factor is essential since it’s designed to offer more energy efficiency, leading to lower operating costs annually. Always consider an Energy Star level or at minimum 90% efficiency to meet needs. Additionally, there are a variety of certifications that help make using the product more pleasant.
List of the Best Tankless Gas Water Heaters
If you’re seeking a tankless heater that is energy-efficient and efficient, go with the propane tankless heater. Compared to other types of heaters, they’re relatively affordable and come in many models in general. That’s why we’ve selected the most efficient gas tankless heaters on the market to help you pick one to fit your home.
1. Rinnai V65iN Tankless Gas Water Heater – Best Overall
Specifications
- Manufacturer: Rinnai
- Water Consumption: 6.5 Gallons
- Item Weight: 45.6 pounds
- Size: Large
- Power Source: Gas Powered
- Voltage: 120 Volts
- Special Features: Digital Controllers
- Warranty: 10-Year Warranty on Heat Exchanger, 5 Year Parts, 1 Year Labor
This Rinnai V65iN Tankless Gas Water Heaters is our pick as the best tanks-free gas heater. This model can provide 6.5 GPM of hot water adequate for large families. The unit’s compact size can fit into any space, and you could even place it in the crawl space or a closet. It is built to last, and every part is repairable, which means there’s no risk of it breaking down and requiring the replacement of the whole device. One of the distinct characteristics of this unit is that it can control it with your smartphones.
The only drawback to the RinnaiV65iN is its need for a separate venting kit, which you have to buy separately.
Pros
- 5GPM hot water flow rate
- Mobil app connectivity
- Compact size
- All parts are replaceable
Cons
- Requires a special venting kit
2. Eccotemp i12-NG Tankless Water Heater
Specifications
- Manufacturer: Standard Plumbing Supply
- Flow Rate: 4 Gallons Per Minute
- Item Weight: 28.8 pounds
- Installation Method: Wall-Mounted
- Power Source: Gas Powered
- Voltage: 120 Volts
- Display Style: LED
- Material: Tempered glass and steel
- Temperature Range: 77 Degrees Fahrenheit
- Warranty: 2 Year Limited Manufacturer Warranty
Eccotemp i12-NG is one of the best tankless gas water heaters. The Eccotemp I12-NG Tankless Heater can provide as much as 3 GPM to hot water during ideal circumstances. Its compact design permits its storage in more places, and the temperature control that is automatic lets you make it your own and then forget about it. It is easy to see all stings through the LED display and a child security lock. It can be connected to the standard electrical outlet, and it has an energy-saving mode and an infant security lock to avoid accidental alteration. Electronic ignition means that there’s not a pilot lamp to fret about.
The Eccotemp i12-NG proved to be a bit unpredictable. It is less effective when the elevation increases and the temperature of the water can affect the units; it appeared that it was more so with this particular brand. We would not recommend the model you are considering if you reside in an area subject to lots of cold temperatures. We tested two of these models, and both had pinholes formed within the copper coil after a short period.
Pros
- 3 GPM
- Compact design
- LED display
- Automatic temperature control
- Energy-saving mode
- Child safety lock
- Plugs into a standard outlet
- Electronic ignition
Cons
- Weak heating
- Not durable
3. Takagi Gas Indoor Tankless Water Heater
Specifications
- Manufacturer: TAKAGI
- Flow Rate: 10 Gallons Per Minute
- Item Weight: 59 pounds
- Installation Method: Wall-Mounted
- Power Source: Gas Powered
- Voltage: 120 Volts
- Display Style: LED
- Material: Stainless Steel, Copper
- Product Dimensions: 11.25 x 17.75 x 24.88 inches
- Temperature Range: 100-185 Degrees Celsius
- Warranty: 3 Year Limited Manufacturer Warranty
The Takagi T-H3-DV gas indoor tankless water heater is our top option. The tankless water heater could have a higher price than other models, but it comes with many options worth the price. It can be used to heat commercial and residential water sources and output more than 10 GPM. It is equipped with Energy Star certification, so you know that it reduces power consumption. It is also equipped with safety features to ensure against overheating, freezing, and surges in power. It has an electronic ignition system, meaning no pilot light will disappear and then be delighted. Its copper-alloy heat exchanger is superior to the stainless steel exchanger found in several other brands.
In addition to the cost and the high price, the main drawback of the Takagi T-H3DV-N is that it requires professional installation, which could be expensive. If you manage to install the device yourself, it will void the warranty.
Pros
- No pilot light
- Protection from freezing, overheating, and power surges
- Copper alloy heat exchange
- 10 GPM
- Energy Star certification
Cons
- Requires professional installation
4. GASLAND Outdoors Portable Gas Water Heater
Specifications
- Manufacturer: GASLAND
- Flow Rate: 4 Gallons Per Minute
- Item Weight: 15.41 pounds
- Installation Method: Wall-Mounted
- Power Source: Gas Powered
- Display Style: LED
- Material: Stainless Steel
- Product Dimensions: 11.8 x 6.1 x 17.3 inches
- Temperature Range: 90-185 Degrees Celsius
- Warranty: 1 Year Limited Manufacturer Warranty
This GASLAND Outdoors BE158S Gas Water Heater Portable is our choice for the top tankless gas water heater that’s worth the price. It’s light and portable. Its compact dimensions are ideal for outdoor use and RVs. It can produce 41,000 BTUs and security measures against overheating and freezing. It also has a showerhead.
It’s an excellent choice for outdoor use, but it’s not sturdy enough for use inside the home. Also, we found it extremely loud when operating.
Pros
- Shower attachment
- Lightweight
- Small size
- 41,000 BTU
- Anti-freezing and overheating protection
- Perfect for outdoor use
Cons
- Loud
- Only good for small jobs
5. Camplux CA318-NG Tankless Water Heater
Specifications
- Manufacturer: Camplux
- Flow Rate: 3.18 Gallons Per Minute
- Item Weight: 28.7 pounds
- Installation Method: Wall-Mounted
- Power Source: Gas Powered
- Display Style: LED
- Material: Stainless Steel, Copper
- Product Dimensions: 14.37 x 4.72 x 25.39 inches
- Temperature Range: 100-185 Degrees Celsius
- Warranty: 2 Year Limited Manufacturer Warranty
The Camplux CA318-NG Tankless Water Heater is stylish and sleek with a front panel of black glass. It features touchscreen controls with LEDs which are easy to view and operate. It can be heated up to 3.18 GPM and features automatic temperature control that helps keep the temperature even. It also has many safety features, including locks for children and an overheat and flame out shutoff.
We didn’t love the Camplux CA318-NG because it reads the temperature in Celsius, which means that should you be located in an area that utilizes Fahrenheit, you’ll need to convert temperature readings. It takes an extended time to warm and slows the flow of water significantly. Our model shut down after two months.
Pros
- Modern black front panel
- LED touchscreen controls
- Safety measures
- Automatic temperature control
Cons
- Only reads the temperature in Celsius
- Slow flow rate
- Not durable
6. Rinnai RU199iN Sensei Tankless Water Heater
Specifications
- Manufacturer: Rinnai
- Flow Rate: 7.5-10.8 Gallons Per Minute
- Item Weight: 74.1 pounds
- Installation Method: Wall-Mounted
- Power Source: Gas Powered
- Display Style: LED
- Material: Stainless Steel, Copper
- Product Dimensions: 22.05 x 14.76 x 33.86 inches
- Temperature Range: 95-185 Degrees Celsius
- Warranty: 2 Year Limited Manufacturer Warranty
The Rinnai RU199iN Sensei Tankless Heater is a powerful water heater that delivers upwards of 11. GPM and hot water directly to the home. 199,000 BTU of heating power ensures that your water doesn’t run cold, even in multiple showers. It’s quiet, and button controls make it simple to alter the temperature of the water.
We were amazed by the heater’s power Rinnai RU199iN Sensei; however, it’s pretty costly. It isn’t equipped with the necessary pipes, which means you’ll have to buy it separately and requires professional installation due to its complex nature. It’s also one of the most expensive items on this list.
Pros
- 11 GPM
- Up to 199,000 BTUs
- Easy push-button controls
- Quiet
- Doesn’t run out of hot water
Cons
- Doesn’t come with any piping
- Requires professional installation
- Extremely expensive
7. Happybuy Propane Hot Tankless Water Heater
Specifications
- Manufacturer: Happybuy
- Flow Rate: 4.8 Gallons Per Minute
- Item Weight: 16.9 pounds
- Installation Method: Wall-Mounted
- Power Source: Gas Powered
- Display Style: LED
- Material: Stainless Steel, Copper
- Product Dimensions: 28.35 x 15.75 x 8.07 inches
- Temperature Range: 96-185 Degrees Celsius
- Warranty: 2 Year Limited Manufacturer Warranty
This Happybuy Propane Hot Tankless Heater is an incredibly powerful small heater that can produce upwards of 4.8 GPM, which should be adequate for most medium-sized households. This LED monitor is simple to read, and the model is equipped with protections against overheating and protection against the low flow. It’s a light and portable device that can be put outside your house. It also has showerheads the time you go camping or in an RV.
There were some issues in the ignition system of the Happybuy. It frequently failed to initiate to heal. Setting up and installing the device was also tricky because it did not include any instructions. Nothing is clearly labeled or even the polarity of the batteries.
Pros
- 4.8 GPM
- LED display
- Overheat and low water flow protection
- Lightweight and portable
- Includes showerhead
Cons
- Electric ignition
- Challenging install
- No instructions or labeling
8. Noritz NRC66DVNG Tankless Hot Water Heater
Specifications
- Manufacturer: Noritz
- Flow Rate: 6.6 Gallons Per Minute
- Item Weight: 39 Pounds
- Installation Method: Wall-Mounted
- Power Source: Gas Powered
- Material: Stainless Steel, Copper
- Product Dimensions: 6.7 x 13.8 x 23.6 inches
- Temperature Range: 95-185 Degrees Celsius
- Warranty: 12 Year Heat Exchanger, 5 Year Parts, 1 Year Labor
Noritz NRC66DVNG Tankless Hot Water Heater is a condenser-type heater. That means it uses some of the heat generated by the exhaust to heat the water. This means it’s more efficient than non-condensing units. The exhaust is kept inside the heater until it cools down, which means less exhaust. Additionally, it allows you to utilize various venting methods to let the exhaust out. It can also set a thermostat remotely to adjust the temperature without having to go to the location of the unit.
The drawback to this model of Noritz has been that the unit frequently closes, which can instantly make your water cold. There’s also a difference regarding the quantity of water the team can warm each minute. The product’s label states that it can heat 6.5 gallons per minute, yet its Energy Star rating says it can heat 3.7. We thought it was more like 3.7; however, it was difficult to tell because it was constantly shutting off.
Pros
- High efficiency
- Low exhaust
- Remote thermostat
Cons
- GPM discrepancy
- Often shuts down
9. Camplux CM264 Natural Gas Water Heater
Specifications
- Manufacturer: Camplux
- Flow Rate: 2.64 Gallons Per Minute
- Item Weight: 23.8 pounds
- Installation Method: Wall-Mounted
- Power Source: Gas Powered
- Material: Stainless Steel
- Voltage: 120 Volts
- Product Dimensions: 12.8 x 5.91 x 20.28 inches
- Temperature Range: 95-185 Degrees Celsius
- Warranty: 1 Year Warranty
This Camplux CM264 Natural Gas Water Heater is a small heater specifically designed for home use. It produces 2.4 GPM, which is ideal for small or couple families. Its small size permits users to place it in more places, and it comes with a variety of security features, such as overheating or low-water shutoff. The temperature display on the digital is easy to read at any distance and comes with all necessary adaptors and installation instructions.
The drawback of the Camplux CM264 model is it has a 2-inch vent pipe that may not conform to the standard building codes in many places, and if you require more, the pipe is nearly impossible to locate. Also, we noticed that the pilot would go out frequently and needed lighting again, and the burners would stop at random while we washed.
Pros
- 2.64 GPM
- Digital temperature display
- Small size
- Safety features
- Includes adaptors and installation instructions
Cons
- Hard to find additional vent pipe
- Pilot light goes out
- Heater shuts off randomly
10. Marey Power Gas 10L 2.7 GPM Natural Gas Digital Panel Tankless Water Heater
Specifications
- Manufacturer: Marey
- Flow Rate: 2.7 Gallons Per Minute
- Item Weight: 7 pounds
- Installation Method: Wall-Mounted
- Power Source: Gas Powered
- Material: Stainless Steel
- Color: Silver
- Product Dimensions: 24 x 7 x 14 inches
- Temperature Range: 100-185 Degrees Celsius
- Warranty: 1 Year Warranty
The Marey Power Gas 10L 2.7 GPM Natural Gas Digital Panel Tankless Water Heater is yet another light, a mobile tankless heating system that can use both indoors and outdoors. It doesn’t need an electrical outlet but instead operates with D batteries, similar to the heaters designed for RVs. It’s simple to control and has a digital temperature display that gives more accurate readings.
The issue we faced when using Marey Power Gas was that it needed a lot of pressure in the water to allow the igniter to begin the burners. The manufacturer claims 10 PSI is required that is already very excessive. However, our experience suggests it’s more like 20 PSI. Gas can build up inside the chamber before the burners make the sound of an explosion. When we attempted to reach the company regarding our issues, it proved challenging to get anyone. When they finally did respond to the phone, they were not friendly or helpful.
Pros
- Digital temperature display
- Compact design
- Does not require electricity
Cons
- Requires a lot of water pressure to ignite the burners
- Gasses build up and make an explosion sound
- Poor customer service
Conclusion
If you are looking for an electric tankless water heater for the home, we strongly suggest this model, Rinnai V65iN Tankless Hot Water Heater. This is our choice for the top overall selection and delivers 6.5 GPM of hot water to every part of your home. You can put it almost everywhere, and even more than one person will have hot water simultaneously. The internal mechanism is highly reliable, and it has never stopped or didn’t begin. Its GASLAND Outdoors BE158S Portable Gas Water Heater is the ideal choice for an outdoor enthusiast and our choice for the top price. It includes showerheads that can be connected to the heater to create the possibility of a portable shower. It’s packed with security features and will provide ample warm water.
We hope you enjoyed reading our reviews and picked the suitable model to fit your needs at home. Please post these 10 best tankless gas water heaters via Facebook and Twitter if you found this helpful.
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