Best Propane Tankless Water Heater Reviews in 2020 (Expert Advice)


Best Propane Tankless Water Heater Reviews in 2020 (Expert Advice)

Heated water is something everyone needs in homes. Whether it’s for showering, washing dishes, or washing clothes, we depend on the warmer water on a daily basis. The challenge is finding a proper water heater that will be safe and secure to use while providing us with reliable warm and hot water.

That’s why we’ve researched all the top products and became experts on tankless gas water heaters. We’ve analyzed features such as gallons per minute, safety shut off, and type of gas. It’s important to have the best propane tankless water heater because it will be safe to use and will last a long time.

A mediocre propane tankless water heater will not be reliable and won’t have good safety features. This resource has all the information you need to make a conscious decision. We’ve even referenced propane tankless water heater reviews from current customers to help you decide.

Our Top Recommended Propane Tankless Water Heater

Eccotemp L10 2.6 GPM Portable Tankless Water Heater, 1 Pack, White
  • Eccotemp L10
  • Maximum Power Output: 74,500 BTU
  • Under 175$
  • Price: See Here!
CAMPLUX ENJOY OUTDOOR LIFE BD264 2.64GPM Outdoor Propane Tankless Gas Water Heater, White
  • Maximum Power Output: 68,000 BTU
  • Under 250$
  • Price: See Here!
Girard 2GWHAM On-Demand Tankless Water Heater
  • Girard 2GWHAM
  • Maximum Power Output: 42,000 BTU
  • Under 600$
  • Price: See Here!

List of 10 Best Propane Tankless Water Heateron the Market Today:

1. Eccotemp L10 2.6 GPM Portable Tankless Water Heater

Eccotemp L10 2.6 GPM Portable Tankless Water Heater, 1 Pack, White


  • Includes 9′ CSA approved gas regulator and hose
  • Use on a standard style 20lb grill tank
  • Comes with stainless steel rain cap; 74,500 BTU’s
  • Includes 1/2″ NPT to garden hose adapter
  • 20-minute safety shutoff timer works automatically (resets when water stops and restarts)
  • Gas type: Liquid Propane

This portable tankless water heater is an Eccotemp L10 2.6 GPM. It is a 1 pack but it is also available in 2,5, and 10 pack. It comes in white color.

Pros and Cons
  • Easy to install
  • Good battery life
  • Maintains strong water pressure
  • Durable
  • The battery box is cheaply made
  • Flame can go out easily with strong wind


Based on the propane tankless water heater reviews, this product is a great purchase. It is a top rated propane tankless water heater that is durable, reliable, and can provide lots of heat for various uses around the home. If you’re looking for a good small propane tankless water heater, you should consider this one. Get yours today for just under $175!

2. CAMPLUX Outdoor Propane Tankless Gas Water Heater

Camplux 10L Outdoor 2.64 GPM Digital Display Portable Propane Gas Tankless Water Heater


  • Anti-freezing protection, overheating protection
  • Compact size with high output
  • Maximum power output 68,000btu/hour
  • Includes everything such as adapters and a CSA approved gas regulator

This white outdoor propane tankless gas water heater is a Camplux Enjoy Outdoor Life model BD264 with 2.64 GPM. In addition to this Pro-10L size it also comes in 2 pcs of Pro-6L, 4 pcs of Pro-6L, Used Pro-6L, Pro-6L, and Pro-6L with 1.2 GPM water pump. It is a very eye-catching device with energy saving technology. It is very safe and stays protected from freezing or overheating. The hot water you need from this heater will come immediately and last for as long as you need it.

Pros and Cons
  • Easy to install
  • Uses standard size shower head (if you want to replace the original)
  • Comes with all the materials needed for installation
  • Instant hot water
  • Shower head included is very cheap plastic


This tankless water heater seems to be a great item to take with you on camping trips. It provides endless hot water and the setup is extremely simple. The propane gas tankless water heater reviews are positive for this model. If you’re for a simple and reliable tankless water heater that includes all the parts you need, get this one for just under $180!

3. Girard 2GWHAM On-Demand Tankless Water Heater

Girard 2GWHAM On-Demand Tankless Water Heater


  • Freeze protection
  • 42,000 BTUs
  • Quiet brushless motor
  • 12V power operates at lower than 3 amps

This on-demand tankless water heater is a Girard 2GWHAM. This water heater is made mainly for winter use. This unit keeps the burned regulated for that the set hot water temperature can be maintained. It’s a great system for your RV’s plumbing and doesn’t require any special hook up or LP gas lines.

Pros and Cons
  • Heats up fast
  • Easy installation
  • long lasting hot water
  • Runs super quiet
  • Might not reach desire hot temperature in freezing cold weather
  • Installation instructions are not great
  • Can only get hot water in one place at a time


This water heater is very quiet, it’s easy to install, and as long as you keep the hot water dedicated to one place at a time you will have long lasting hot water. Get one of your on-demand best propane tankless water heaters today for under $500!

4. Happybuy Propane Liquefied Petroleum Gas Water Heater

Happybuy Tankless Hot Water HeaterPropane 16L Propane Hot Water Heater 4.3GPM Tankless Water Heater 32KW Stainless Steel with Shower Head Kit Wall-Mounted Water Heater


  • Control cold and warm water. Higher than 75 degrees Celsius will trigger an auto turn off. An unexpectable flameout would also shut down the power.
  • Pressure automatically decreases under excessively high water pressure
  • Anti-freeze protection
  • Advanced energy-saving and combustion tech reduces burning noise and gas consumption

This tankless instant hot water heater boiler is a Happybuy propane 16L gas LPG. It is a 36KW 4.8GPM water heater liquefied petroleum gas water heater.

In addition to this 16L liquefied propane gas, this hot water heater is also available in 8L, 10L, 12L, liquefied natural gas, 12L liquefied natural gas touch screen, 12L, and 18L liquefied propane gas.

You can purchase this product as a pool heater as well. New customers should know that each water heater can only use a single gas type. This unit is safe and is ready to automatically shut down under various extreme circumstances, protecting the user and the equipment.

Pros and Cons
  • Automatic shut down feature
  • Good price
  • Good size
  • Propane regulator is not included but needed to ignite


This hot water heater runs efficiently and you can depend on it to shut down during extreme temperatures or for safety measures. According to the natural gas tankless water heater reviews it’s a great product to go camping with as it lets you control both the cold and warm water.

Get your dependable water heater today for just under $130!

5. Eccotemp i12-LP

Eccotemp i12-LP water heater, 4 GPM, Black


  • Sleek modern design
  • Black tempered glass front panel with a simple LED display controls
  • Fully automatic temperature controls including child lock and an energy saving mode
  • Plugs into a standard 110v electric outlet with UL-listed cord
  • Uses standard 1/2″ NPT water fittings and includes horizontal venting for fast and convenient installation

This water heater is rated at 4 GPM, black, Eccotemp i12-LP. This heater can be used for your entire home. It’s an indoor heater that will activate on demand. It doesn’t need a pilot.

Pros and Cons
  • Stable water temperature
  • Works great
  • Easy installation
  • Touchscreen display
  • Loud if mounted directly in the bathroom
  • Valve/flush kit not included


If you’re looking for the best indoor propane tankless water heater that will give you unlimited hot water, is easy to install, and has modern controls, then this is the hot water heater for you. It works great, but new customers should purchase a valve kit as well.

Customers in colder climates who have provided propane tankless water heater review advise caution with this purchase. If you’re heating up the water in a small home, feel free to purchase this water heater for just under $345!

6. Takagi T-KJr2-IN-NG Indoor Tankless Water Heater

Takagi T-KJr2-IN-NG Indoor Tankless Water Heater, Natural Gas


  • 140,000 BTU
  • Voltage: AC 120V
  • 6.6 GPM max flow rate
  • 4-Inch category III stainless steel venting required
  • Inlet, outlet thermistors for continuous temperature monitoring
  • Energy factor of .81-.83

This tankless water heater runs on natural gas. It is made by Takagi and it is a model T-KJr2-IN-NG. The water connection is located at the bottom and this unit is for indoors.

Pros and Cons
  • Lightweight
  • Small
  • Works well
  • Easy to install
  • Good price
  • Have to buy additional items (connections are not included)
  • Needs to be maintained (cleaned on the inside) every 6 months
  • Loud humming noise when the hot water runs


This is a strong indoor tankless water heater that is small enough to leave room for your other appliances. It is easy to install, but new customers should be aware that they will have to purchase additional parts. Buy your hot water heater today for just under $400.

7. Rinnai V65EP Outdoor Low NOx Tankless Propane Water Heater

Rinnai V Series HE Tankless Hot Water Heater: Outdoor Installation


  • Imported
  • No fabrics
  • Energy factor .82 for propane and natural gas (no recirculation capable)
  • Certified for installation in manufactured (mobile) homes
  • 1/2 Inch gas line compatible
  • Temperature lock
  • 150,000 Max BTU
  • Complies with South Coast Air Quality Management District 14 ng/J or 20 ppm NOx emission levels.

This low NOx tankless propane water heater is by Rinnai. It is a model V65EP and rated 6.6 GPM. It is made for the outdoors. This water heater has enhanced scale detection to help users avoid long-term and serious damage to the unit.

There will be no unauthorized or accidental changes to this heater’s water temperature because it has a temperature lock.

Pros and Cons
  • High-quality design
  • Easy installation
  • Efficient
  • N/A


This is one of the best propane tankless water heaters. It is reliable, easy to install, and works efficiently. Multiple people can use the hot water at the same time, so if you have guests you don’t have to worry. Invest in this reliable tankless hot water heater for just under $635!

8. Rinnai V75IP 7.5 GPM Indoor Low NOx Tankless Propane Water Heater

Rinnai V Series HE Tankless Hot Water Heater: Indoor Installation


  • Certified for installation in manufactured (mobile) homes
  • Max BTU 180,000 (additional controllers available)
  • Max energy factor .82 (natural gas)
  • Indoor Installations
  • Satisfies SCAQMD

This indoor Low NOx tankless propane water heater is by Rinnai. It is a model V715IP and it’s rated 7.5 GPM. This water heater is in compliance with SCAQMD with requirements of less than 14 ng/J for ultra-low NOx emissions.

Pros and Cons
  • Efficient
  • Easy to install
  • Consistent temperature and pressure
  • Expensive
  • Might take a while for the hot water to reach some areas


This hot water heater is a great device that’s efficient in cold climates. It is a bit pricey but it is easy to install and will keep a consistent temperature and pressure. Get your reliable water heater today for under $795.

9. Rinnai RUC98iP Ultra Series

Rinnai RUC98iP Ultra Series Propane Tankless Water Heater, Concentric/Twin Pipe Installation


  • Imported
  • No fabrics
  • 199,000 max BTU
  • Ultra low NOx emissions
  • Up to .96 Energy Factor
  • Concentric or PVC venting option
  • Space-saving design

This tankless water heater is by Rinnai. It is a model RUC98iP and it is an ultra series propane heater. This compact designed water heater can be installed just about anywhere. It offers a concentric or twin pipe installation.

Pros and Cons
  • Easy installation
  • Makes good endless hot water
  • You have to wait about a minute before you receive hot water, especially if you turn off the faucet and turn it back on


If you’re in the market for the best whole house propane tankless water heater, then this product is a good choice. It’s easy to install and the hot water it provides will be nonstop. When you’re ready for a hot water heater that comes with the necessary parts, this water heater should be on your radar.

According to the propane tankless water heater reviews, this heater is a pretty good buy. Purchase yours today for just over $1,300.


  • Fully automatic operation
  • Includes shower head with hose
  • Independent control of gas and water flow
  • Low water pressure ignition

This tankless portable water heater is by EZ tankless. This unit ignites with the flow of water and extinguishes when flow stops. With this heater it’s easy to regulate the water temperature.

Pros and Cons
  • Works great
  • Lasts a long time
  • Flow rate isn’t great
  • Doesn’t include all fittings or a regulator


Overall customers feel that this is one of the best propane tankless water heaters on the market. It works really good and it can last for years without replacement. If you’re looking for a durable hot water heater, then you might want to try this one for just under $155.

Tips on Choosing the Best Propane Tankless Water Heater

  • Price: You don’t need to spend a lot of money on a water heater if you are purchasing for a smaller space. If you are purchasing for a large home, then you will need to adjust your budget accordingly to meet the potential demands of a larger house. New purchasers should also prepare because tankless gas water heaters will cost more upfront than electric water heaters.
  • Climate: The colder your climate is the more powerful of a hot water heater you will need. On the contrary, if you live in Florida, you could potentially get away with the least expensive unit even for a large household because the unit won’t have to work as hard.
  • Natural gas is a lot cheaper than electricity. If you wind up with a top unit, you could wind up saving money in the long run. Several customers have reported that they are using their good water heaters over years which proves they can be very durable.
  • Physical size: Your water heater can be small and lightweight. A compact heater will fit in your storage closet with no problem and you will most likely be able to fit other appliances in there with it.
  • Safety: Consider a water heater with proper safety measures that won’t allow the heater to overheat or freeze. Some heaters come with an auto shut down feature or a temperature regulator. You could also look into a heater that locks the temperature in place to reduce the amounts of accidents during use.

Factors To Consider When Buying The Best Propane Tankless Water Heater

  • Household size: The number of people in your home is a major issue to think about when you’re shopping for a hot water heater. The number of gallons per minute (GPM) will differ greatly when you’re comparing a five-bedroom home to an apartment.
  • GPM: You can check your shower head to see what the GPM rating is. Showers tend to use the heaviest amounts of hot water of all appliances. It’s smart to check your other appliances as well including your dishwasher, sink, and washing machine. Once you’ve considered each hot water appliance think about how many of them you will use at the same time, and that’s how you will get your total GPM need. For colder climates consider rounding up your GPM need by 75 to 100%.
  • Installation cost: Some of the costs you’ll have to be ready to include the venting construction and retrofitting your gas line.
  • Hot water for appliances: Unless specifically mentioned, tankless hot water heaters are not designed to be used on pools. The chemicals that are required to run spas and pools can be damaging to the water heater’s components.

Best Propane Tankless Water Heater

Making The Decision

Now that you have all the information you need to know about purchasing the best propane tankless water heater it’s time to make your purchase. Base your choice on the number of gallons per minute that you think you’ll need. Consider the size of your home and the number of appliances you’ll be running at the same time.

Get your budget ready based on how powerful your water heater will need to be.

Remember to check out propane tankless water heater reviews. Current customers provide the best information about the products we are looking into and the experiences we can expect. Make sure to read about any additional parts you’ll need to purchase to the full functionality of your tankless water heater.

Also, make sure that it has proper safety certifications and will be secure enough for the authorized users. Narrow down your main features, and start saving money on energy and safety for your family by purchasing a brand new tankless water heater today!