Best Propane Tankless Water Heater

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Are you looking for the best propane tankless water heater? Don’t look anymore as we are going to help you.
Finding the best water heaters is quite challenging, with so many in the market. You don’t need a storage tank to help you heat water.
As such, we are going to analyze propane tankless water heater reviews to make your search easier.

 ProductGPMApprox. UsageRating & Price
Rinnai RUR199iP Indoor Propane Tankless Water HeaterCHECK PRICE
  • Energy Factor (UEF): 0.93
  • Control-R 2.0 mobile app with timers and schedulers
  • Outdoor version available
  • Very detailed instructions
  • Excellent support line
  • Super efficient unit which saves you money over time

11CHECK PRICE
Rinnai V65iP Indoor Propane Tankless Water HeaterCHECK PRICE
  • Energy Factor (UEF): 0.8
  • Certified for Installation in Mobile Homes
  • Control-R app for remote management via Wi-Fi
  • Freeze protection
  • Ultra Low NOx emission levels
6.5CHECK PRICE
Camplux 5L 1.32 GPM Outdoor Portable Propane Tankless Water HeaterCHECK PRICE
  • Low water pressure operating range
  • Powered by 2 "D" cell batteries
  • It has portable handle
  • It comes with a showerhead and a hose
1.32CHECK PRICE
Eccotemp L10 2.6 GPM Portable Propane Tankless Water HeaterCHECK PRICE
  • Great for camping
  • Works with any showerhead and hose
  • Very easy to setup and use
  • Battery powered ignition
  • It has a removable weather-proof raincap
2.6CHECK PRICE

Propane Tankless Water Heater Reviews

Let’s take a closer look at every product and see what is every unit best suited for.

Let’s start with the biggest tankless water heater on the list:

Rinnai RUR199iP – Best Propane Tankless Water Heater for High Altitudes

Rinnai RUR Series Sensei SE+ Features and Specifications:
  • UEF (Efficiency Rating): 0.93
  • Product dimensions: 22.1 x 14.8 x 33.9 inches
  • Flow rate: 11 GPM
  • Installation Type: Indoor
  • Energy Star® certified
Read Verified Customers Reviews

With this indoor propane tankless water heater, you get endless hot water for your entire home. It utilizes a condensing technology and ultra-low NOx operation, which makes it environment-friendly.

The propane-fueled unit has up to 11 GPM flow rate.

The Control-R 2.0 mobile app makes this tankless stand out among others. The app allows you to time and schedules the heater all through the day. It also allows you to put the system into vacation mode remotely.

The water heater is the size of a small suitcase. I particularly love this heater because it is compact and easy to install. The water heater is super efficient and perfect for indoor locations.

Things we liked

  • The heater has a mobile app that helps in controlling it
  • It is small in size which makes it easy to install
  • It comes with a residential factory warranty of 120 months

Things we didn’t like

  • If the power goes out, the temperature resets regardless of what the temperature was before the power outage.
  • You cannot control the recirculation setting using the Control-R app

Rinnai V65iP – Best Indoor Propane Tankless Water Heater

Rinnai V Series HE Tankless Water Heater Features and Specs:
  • UEF (Efficiency Rating): 0.8
  • Product dimensions: 13.9 x 8.8 x 23.6 inches
  • Flow rate: 6.5 GPM
  • Installation Type: Indoor
  • Energy Star® certified
Read Verified Customers Reviews

The V65iN model is a combination of high efficiency, comfort, and value. This model is where comfort meets affordability. It is ideal for indoor locations in small and medium homes as it has compact sizes and is easy to install.
It features an energy factor of 0.82 for natural gas and propane.

  • The leak detection shuts off the water, which prevents property damage.
  • The temperature lock prevents changes to the water temperature.
  • Scale detection reduces the possibilities of long term damage.

The V65iN also features up to 6.5 GPM hot water flow rate. The heater also has a Control-R mobile app that allows you to put timers and schedules throughout the day. You can also activate the vacation mode of the system remotely.

Things we liked

  • Error Code Indicator which prevents property damage
  • It comes with a 10-year warranty on the heat exchanger, five years on parts, and one year warranty on labor.
  • The unit is noiseless
  • Has a mobile app for timing and scheduling

Things we didn’t like

  • It requires a unique vent system for water condensation. This increases the cost as they need their own vent that is more expensive than the others.
  • Despite coming with a manual, it is challenging to install it yourself. You will need an electrician to help with the electricity requirements. This is also an added cost.
  • The product does not offer you all the parts you need for installation during purchase.

Camplux 5L – Best Outdoor Portable Propane Tankless Water Heater

Camplux 5L 1.32 GPM Outdoor Portable Propane Tankless Water Heater Features and Specs:
  • Flow rate: 1.32 GPM
  • Product dimensions: 11.4 x 4.3 x 14.8 inches
  • Max/Min temperature rise: 114.8℉(46℃)/46.4℉(8℃)
  • Portable
  • Not recommend for high altitudes (above 2000 ft)
Read Verified Customers Reviews

Portability and energy-saving features make this an ideal outdoor propane tankless water heater.

The heater comes with a preserver and a well-protected gas chamber. It ensures that no accident can happen during setup and use.

I appreciate the fact that it comes with 1.32 GPM of hot water energy-saving feature, which ensures that you have an instant flow of hot water wherever you are.

The heater has a compact size with folding handles. These features make it portable and easy to set up outdoors. It also has a flame failure device and an oxygen depletion safety shut-off. There’s also anti-freezing protection.

The tankless water heater works with 2 “D” cell batteries, making it great for use in places where electricity is not available. The propane gas pressure is 0.4PSI. It also works with modified water systems with a 12-volt water system. It is available in liquid propane only.

It only requires 2.5 PSI of water pressure, which is the lowest in the market.

Things we liked

  • It is highly efficient
  • We love that the water heater is cell-powered so that you can use it even while away from the electricity grid.
  • It has a compact size which makes it portable and easy to set up outdoors
  • The oxygen depletion shut off protection and the anti-freezing protection make the water heater safe for use by you and your family.

Things we didn’t like

  • It suits outdoor installation only
  • Users complain that the propane hose fitting is not tight. It makes it loose enough for propane to escape with time.

Eccotemp L10 2.6 GPM Best Tankless Water Heater for Tiny House

Eccotemp L10 Features and Specs:
  • Flow rate: 2.6 GPM
  • Product dimensions: 8 x 14 x 25.5 inches
  • Opearating range: 20-80 PSI
  • Portable
  • 20 minute safety shutoff timer
Read Verified Customers Reviews

The Eccotemp L10 is lightweight and has a compact size, which makes it easy to carry and perfect for outdoor use.

It has an electric ignition powered by 2 “D” cell batteries, which makes it ideal for use off the grid and in areas with no electricity.

The water operates with liquid propane only. The product comes with mounting brackets at the top back of the unit for easy set up while outdoors. It is compatible with 12 volts pumps.

The heater features a rust-resistant chrome showerhead and a stainless steel hose.

Another great feature of the product is that it comes with easy to use temperature controls. It is capable of providing hot water on demand by heating water only when there is a need.

The Eccotemp L10 also features a 20 minutes automatic safety shut off timer. The timer resets when the water stops and starts again when water is back.

The 45-degree safety tilt-switch also enhances safety. It also comes with a gas regulator and hose, garden hose adapter, and output water quick connect.

Things we liked

  • The chrome shower head and stainless steel hose makes it durable
  • The 20 minutes shut off and 45-degree tilt-switch makes the water heater safe to use
  • The mounts at the back of the water heater allow for easy set up while outdoors
  • It has a compact size, and it is lightweight for portability purposes
  • High-efficiency performance

Things we didn’t like

  • The pressure adjusting knob is of poor quality
  • Users complain that the water heater breaks down due to freezing lines

Buyer’s guide for the best propane tankless water heater

There is little room for error in buying an on-demand water heater. You should consider the following while purchasing a propane tankless water heater.

Installation

The companies recommend that a licensed contractor should do the installation. The contractor should know the plumbing, electrical, gas, and venting aspects of the tankless heater.
What this means is an extra cost of hiring a contractor. If you do the installation yourself, you might void the warranty in case of anything.

Location

If you are using an indoor propane water heater, you can install it on any wall in your home. You can also install the heater on the outside wall of your home to save on space.
For an outdoor water heater, you should get one with mounts and handles for easy setup and installation.

Venting

Indoor models of propane water heaters can vent vertically through the roof or horizontally through the wall. The venting option should offer the best safety and performance.

Gas line sizes and fuel types

This model is available in natural gas and LPG fuel types. It also uses either ½” or 3/4″ gas line. It contributes to an increase in efficiency and lower carbon emissions.

Energy-saving and efficiency

Energy saving is one of the reasons for using an on-demand propane tankless water heater. You should be keen while choosing one that will meet your needs. Note, the efficiency and power saving of the heater decreases as the water needs increase.

Electric systems have a higher efficiency than gas units. Gas is a less expensive source of fuel, which will give you a lower annual operating cost.

For this reason, efficiency is just one factor in many that you should consider while buying a tankless heater.

Getting the right size

You should be sure to select the proper size that will help meet all your needs. You look at the temperature rise needed to achieve a specific flow rate. If you can calculate these two factors, you can select a size that will meet your household hot water needs.

Gas fueled on-demand systems tend to produce a higher flow rate than the electric ones. Remember, getting the right size for the tankless water heater is critical because there’s no storage tank in case of a water shortage.

Portability

You will use an outdoor tankless water heater while doing outdoor activities such as camping and so on. As such, you should select one that has a compact size and is lightweight so that it will be easy to carry it around.

The size will also determine how simple it will be to set up the water heater.

Your gas supply

Gas tankless water heaters are more powerful than the electric ones. Before deciding to buy the gas tankless water heaters, you should consider the following:

Your gas supply should be large enough to power up the unit. You should also think about the location of the meter of the new tankless unit. You can get the services of a gas provider or a plumber to help you weigh all your options.

Make sure the gas power model you are looking for uses electronic ignition.

Conclusion

Among our list of the best propane tankless water heater, what takes the day is the Rinnai RUR Series Sensei SE+ Tankless Hot Water Heater. The propane-fueled heater offers 11 GPM hot water flow rate.

It also has the Control-R mobile app that you can use to set timers and schedules during the day. You can also activate the vacation mode remotely using the app.
The water heater has a compact design, and it is easy to install. It makes it perfect for indoor use.