Top 5 Best Rinnai Tankless Propane Water Heater

Best Propane Tankless Water Heater for 2021

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I’m sure there are people out there just like me who are ready to ditch their traditional clunky water heater for a space and energy saving propane tankless water heater. And I’m here to tell you: when it comes to finding the best tankless propane water heater, look no further than Rinnai. They are the best of the best. Hands down! On top of that, most Rinnai tankless water heaters are only about the size of a rolling suitcase. So you can free up valuable storage space in your home.

It’s like something out of a dream! You simply turn on a hot-water faucet. A flow sensor will activate a propane gas burner to heat the water. Instant hot water delivered at your fingertips.

Propane tankless water heaters come in many price ranges and sizes range from compact (tiny home) to large (commercial). This article provides a comprehensive review and photos of the 5 best tankless propane water heaters. Buying a water heater can be considered a large purchase for you. The intent is to inform fully inform you to make an educated buying decision. So, let get started.

If you’re in a rush: Our comprehensive research and comparison has led us to choose Rinnai RU160iP 9 GPM Propane Tankless Water Heater Propane as our top pick. This tankless propane water heater is ideal for most families. It delivers instant hot water on demand at 9 gallons per minute. The eco-conscious design helps households to reduce their energy consumption.

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Table of Contents

Why choose a tankless propane water heater?

A tankless propane water heater is basically an “on-demand” water heating system. Therefore, you don’t need a tank to store the water. Most families find that propane tankless heaters are far more dependable and energy-efficient than traditional models.

Low energy consumption

In a propane tankless water heater, water flows through a coil. This coil is heated by a gas ignited burner, which in turn warms up the water. A tankless water heater only operates and heats the water by the time you need it, in contrast, to always boiling water saved in a tank. Because a propane tankless water heater uses a very hot flame you don’t need to keep water sitting in a storage tank, eating up energy dollars while it waits to be used.

Low costs and long lifespan

It can deliver a continuous stream of hot water at a rate of anywhere from 2 gallons a minute to more than 13 gallons a minute.

They cost $800-$1500 on average. And the best propane tankless water heater models have a long lifespan (over 15 years). Life expectancy (or useful lifespan) of a Rinnai tankless water heater is up to 20 years. Additionally, propane is cheaper than electricity.

Endless hot water supply

A tankless propane water heater is perfect for washrooms, dishwashers, whirlpools, kitchens, and any other critical point that hot water is needed. They are also suitable for places such as restaurants, fitness centers, hospitals, offices, and apartments.

Rinnai makes good propane tankless water heaters

Rinnai is a Japanese brand known for manufacturing some of the best and high-end propane tankless water heaters available in the market. They are they are among the best in the industry. In addition to that, they are highly-efficient, which makes them outshine their competitors in the market. And the good part is that they are a conscious brand.

All of Rinnai’s propane tankless water heaters available in the market have been manufactured by keeping in mind the convenience and satisfaction of human life. Rinnai propane tankless water heaters have occupied the entire world’s market, making it one of the leading brands in the manufacturing of tankless water heaters. The durability is unmatched. The estimated life expectancy of a Rinnai tankless hot water heater is twice as long as that of a traditional tank.

This article will provide you with complete knowledge of Rinnai and provide you with some of the best Rinnai propane tankless water heaters.

Top 5 Best Rinnai Propane Tankless Water Heaters

1. Rinnai V75iP Propane Tankless Water Heater 7.5 GPM

4.4 Total Score
Our top and best pick for Rinnai water heaters is Rinnai V75iP. This model comes highly recommended. If you're looking for a propane water heater that is a perfect combination of efficiency, value, and comfortability then you've found your match. The compact size of this water heater makes it suitable for small and medium homes and remodels. It is a reliable and easy-to-install unit. Moreover, its compact size allows you to install this unit indoors easily.

This highly-efficient and liquid propane-powered Rinnai water heater offer a flow rate of up to 7.5 GPM so that you can enjoy an endless supply of hot water to your home. You can use the Control-R 2.0 mobile app to control this unit. And get this...this mobile app allows you to monitor its temperature, activate the sleeping mode of this tank less water heater, and schedule timers for recirculation from anywhere.

It's all out awesome!

Features

Hot Water Flow Rate:

This highly-efficient and propane-powered Rinnai water heater offer a flow rate of up to 7.5 GPM so that you can enjoy an endless supply of hot water to your home.

Control-R 2.0 Mobile App:

You can use it with the help of a Control-R 2.0 mobile app. This mobile app allows you to monitor its temperature, activate the sleeping mode of this tank less water heater, and schedule timers for recirculation from anywhere.

Warranty:

This unit comes with a residential factory warranty with 120 months warranty on its heat exchanger, 12 months warranty for labor, and a 60-month warranty for its parts

Pros:

  • Highly-efficient
  • Easy to install
  • Compact

Cons:

  • Non existent
Priced Under $750
1. Rinnai V75iP Propane Tankless Water Heater 7.5 GPM

2. Rinnai RL94IP HE+ Tankless Propane Water Heater 9.4 GPM

4.3 Total Score
Ok. So if you're looking for a lightweight but high efficiency propane option then the Rinnai RL94IP tankless water heater would probably work for you. This Rinnai water heater comes with a beautiful body and lightweight construction. The Rinnai RL94IP comes packed with quite a few cool features that make it rise above the rest of tankless water heaters in the market. It has some pretty amazing pre-heating capabilities and convenient WiFi features.

The Rinnai RL94IP is perfectly capable of supplying hot water to large homes but the design makes it quite ideal for smaller homes as well. It has a weight of only 44.3 pounds, which makes it easy for you to install it, and like most tankless heaters it makes shipping a breeze. Similarly, this tankless propane water heater also comes with wall mounting options so that you can easily install it near any window.

This Rinnai tankless water heater is a tankless water heater that uses propane as its fuel, so you will have to install this tankless propane water heater outside. Moreover, you will have to maintain this tankless heater properly, especially on chilly nights, because its pipes may get frozen. Since Propane fuels it, this means that its heating element also works faster. As far as this tankless water's capacity is concerned, it offers you a maximum capacity of 9.4 GPM.

Moreover, this Rinnai water heater is also equipped with PVC pipes, which means that the heat stays for a long time, making it both energy- and water-efficient. It also provides a fast, hot water rate to the faucet. On the inside, this propane on demand water heater is equipped with durable and high-grade elements. Almost all of these elements are made from stainless steel material, making them durable and long-lasting. The best thing about these elements is that they don’t let debris or limestone build-up in the pipes. The heating element is also backed by a warranty of 5-years paired with a warranty of 5-years for internal components. This tankless water heater uses advanced technology and is equipped with some of the best features available of any propane water heater. It uses Circ-Logic technology allowing the heater to circulate the hot water through the pipes. In this way, the heater can heat not only the water but also conserves it. Finally, it also uses Wi-Fi connectivity, making it easier for you to control this water heater.

Upgraded Technology and Features:

This tankless propane water heater uses advanced technology and is equipped with some of the best features. It uses Circ-Logic technology allowing the heater to circulate the hot water through the pipes. In this way, the heater can heat not only the water but also conserves it. It also uses Wi-Fi connectivity, making it easier for you to control this water heater.

The capacity of this Water Heater:

As far as this tankless water's capacity is concerned, it offers you with a maximum capacity of 9.4 GPM.

Elements Present Inside the Heater:

On the inside, this propane on demand water heater is equipped with durable and high-grade elements. Almost all of these elements are made from stainless steel material, making them durable and long-lasting. The heating element is backed by a warranty of 5-years paired with a warranty of 5-years for internal components.

Pros:

  • Easy to install
  • Easy to carry
  • Lightweight

Cons:

  • Makes some sound
Priced Under $1,185
2. Rinnai RL94IP HE+ Tankless Propane Water Heater 9.4 GPM

3. Rinnai RU160iP Tankless Water Heater Propane 9 GPM

4.5 Total Score
Rinnai RU160iP Sensei Super High-Efficiency Tankless Water Heater is part of the Sensei SE+ Series. It is super-efficient, and also it is Energy Star Qualified. In fact the Rinnai RU160iP propane tankless water heater has an official energy factor (EF) of 0.95, making it one of the most efficient in it's class. This Rinnai tankless water heater is specifically designed for residential and commercial use. Moreover, it is available in two options: Natural Gas and Liquid Propane. I'm a huge fan of propane; but of course it is up to you to decide which fuel works in your case. As for this particular Rinnai model, both propane and natural gas do the job. The specifications are about equal.

This tankless propane water heater is equipped with a Fiber Mesh Premix Burner, which evenly distributes the flame to provide maximum performance. Likewise, this water heater provides 160,000 BTUs that deliver a flow rate ranging between 0.26 and 8.0 GPM. The minimum GPM offered by this best suited for low demand uses where you don't need warm water at a high rate that includes shaving. If your home has two bathrooms, then this propane on demand water heater is the best option for you. This unit can be easily used for simultaneous use of 2 – 5 fixtures at once. This means that two people can take a shower in two different bathrooms at the same time. The fixture use is dependent on the groundwater temperature. As part of the front panel, this unit is equipped with an MC-91-US controller. This unit comes with a minimum temperature setting of 98 degrees and has a maximum temperature setting of 120 degrees Fahrenheit in its default setting.

Features

Condensing Technology:

This unit uses the condensing technology that provides you with built-in freeze protection up to -22 degrees Fahrenheit.

Venting:

This unit comes with a dual venting option making its installation flexible for you. You can either use one concentric vent or 2 PVC/CPVC/PP pipes. If you use concentric venting, then one pipe allows the inflow of fresh outside air while the other allows the outflow of exhaust.

Burner:

This tankless propane water heater is equipped with a Fiber Mesh Premix Burner, which evenly distributes the flame to provide maximum performance.

Pros:

  • Provides an endless supply of hot water
  • Quiet
  • Easy to install

Cons:

  • None

🏆 Best Propane Tankless Water Heater

Priced Under $1,395
🏆 Best Propane Tankless Water Heater

4. Rinnai V94EP Propane Tankless Hot Water Heater 9.4 GPM

4.5 Total Score
Rinnai V94EP Tankless Water is a perfect combination of comfortability, efficiency, and value for propane. As far as the hot water flow rate of this propane tankless water heater is concerned, it offers you with a flow rate of 9.4 GPM. So if you have a small family and live in a medium-sized house, then this Rinnai tankless water heater is a perfect choice for you. This Rinnai water heater can be easily installed as it has a compact size. Also, it is reliable and can be installed at outdoor locations.

This tankless water heater uses Control-R 2.0 mobile app. With this app's help, you can monitor its temperature, activate the sleeping mode of this tank less water heater, and schedule timers for recirculation from anywhere. With Rinnai V94EP installed in your home, it will fulfill your not water needs and save energy. With this tankless heater, you will never have to take an icy cold shower at the start of your day.

Control-R 2.0 mobile app:

This tankless water heater uses Control-R 2.0 mobile app. With this app's help, you can monitor its temperature, activate the sleeping mode of this tank less water heater, and schedule timers for recirculation from anywhere.

Warranty:

This unit is backed by a 120 months warranty on heat exchanger, 12 months on labor, and 60 months on parts of this unit

Hot Water Flow Rate:

As far as the hot water flow rate of this tankless propane water heater is concerned, it provides you with a flow rate of 9.4 GPM.

Pros:

  • Comfortable to use
  • Highly efficient unit
  • Reliable

Cons:

  • None noteworthy
Priced Under $980
4. Rinnai V94EP Propane Tankless Hot Water Heater 9.4 GPM

5. Rinnai RUS75eP SE Liquid Propane Tankless Water Heater 7.5 GPM

5 Total Score
If you are looking for a tankless water heater that provides you with an endless supply of hot water, then Rinnai RUS Series SE Tankless Hot Water Heater is the product just made for you. The high-quality construction of this tankless water heater makes it suitable for outside construction. Moreover, this tankless water heater offers you a water flow rate of more than 7.5 GPMs, making it one of the best water heater in the market. This tankless water heater uses an advanced technology that allows this tankless water heater to circulate water throughout the pipes.

Moreover, this unit is perfect for you if you want to save energy and water. This tankless water heater can help you save about 8700 bottles of hot water annually. If you don’t have enough for a bigger sized tankless water heater, then this unit is just for you. You can install this tankless water heater outside your home. This is a user-friendly tankless water heater which is compact, easy to install and operate. This tankless water heater is not very large, so it is best suited for small to medium-sized families.

Whether you want a shower, cook food, wash the utensils, or do laundry, this unit will provide you with a continuous supply of hot water so that you can easily do all this stuff. As compared to other tankless water heaters available in the market, this unit's hot water flow is impressive.

Features

Hot Water Flow Rate:

This tankless propane water heater provides you with a flow rate of up to 7.5 GPM

Control-R 2.0 Mobile App:

You can operate this tankless water heater using Control-R 2.0 mobile app. With this app's help, you can monitor its temperature, activate the sleeping mode of this tank less water heater, and schedule timers for recirculation from anywhere.

Warranty:

The manufacturer offers a residential factory warranty with this unit, including a 120-month warranty for the heat exchanger, 60 months for parts, and 12 months for labor.

Pros:

  • High-quality construction
  • Saves energy and water both
  • Easy to install and operate

Cons:

  • No major drawbacks reported
Priced Under $1,025
5. Rinnai RUS75eP SE Liquid Propane Tankless Water Heater 7.5 GPM

Tankless Propane Water Heater Buyers Guide:

Ok. So now that I’ve shared some product reviews along with my recommendations, I want to equip you even further to make the best decision for you and your family. These are the things to consider when making your purchase:

Tankless Water Heater Flow Rate:

The critical factor which you must consider when purchasing a rinnai water heater is the rate of flow. Rate of flow measured by GPM. Rinnai tankless water doesn’t possess any tanks or reservoirs, which means that all of the heating is done in the flow pipe.

The rate of flow determines how much-heated water you get per minute. This means that the higher the flow rate, the higher the quantity of hot water you will get. The majority of the tankless water heaters available in the market provide you with a flow rate ranging from 4 GPM – 8 GPM. On the other hand, the Rinnai propane tankless water heaters offer you a flow rate ranging from 6.5 GPM – 9.8 GPM.

Propane as a Source of Power

Another critical feature to consider is the power source. Different models of tankless water heaters available in the market have different power inputs. For Rinnai water heaters, the power sources are divided into three main categories: electric, propane, natural gas, and solar-powered.

As compared to propane-powered models, electric tankless water heaters consume more electricity. Electric tankless water heaters consume a double amount of BTU units compared to those powered by propane. If you want a high energy-efficient tankless water heater, then solar-powered models are ideal because they consume very little energy, and their performance is also exceptional.

Propane Water Heaters vs Electric Water Heaters

Now, although the focus of this article is on propane water heaters, I still want to cover all of the bases. If you’re not quite sold on propane and are still considering an electric tankless water heater then you need to be knowledgable about the elements.

The heater that provides maximum output is observed to consume a high amount of electricity. The majority of the propane tankless water heater is available in convertible heating options. With this, you can change its heating output as per your climatic condition.

This unit’s output is set at 120 degrees Fahrenheit, which can be used at any decent temperature. But the manufacturer provides you with an amazing when it comes to changing the British Thermal Unit (BTU) . These water heaters are equipped with a powerful and eco-friendly propane burner.

The BTU ratings of Rinnai water heaters are considerably high and lie in 150000 to 199000.

Energy-Efficient (or Energy Factor EF rating)

Everyone prefers to purchase energy-efficient products, and it is essential too. That’s why most people like the products of brands that offer low consumption of power and maximum output. For propane-powered Rinnai tankless water heaters, they are categorized into two groups: highly efficient models and super highly-efficient water heaters.

The tankless water heaters are usually energy start rated, which means that they will provide you with the best output for consumption and efficiency. The majority of these Rinnai tankless water heaters consume 4000 BTU or even lesser per gallon of water.

Place Where the Water Heater Will be Used

For its installation of this unit, you will have to figure out the place of use, whether you will need it for indoor requirements or outdoor requirements. The majority of the people make a big mistake here, affecting the maintenance of their product.

Some people install the outdoor propane tankless heater inside the bathroom and the indoor model outsider. Thus it becomes complicated for them to maintain their product. If you are purchasing a gas-model for indoor requirements, make sure that this model has CO2 and NOx ventilation. For the maintenance of the outdoor unit, you will have to prevent it from the cold temperature.

Propane Tankless Water Heater Installation

Finally, you will also have to keep in mind the installation when you are purchasing your Rinnai tankless water heater. Installing a Rinnai tankless water heater will cost you approximately $1,500 to $2,000. The majority of the Rinnani water heaters available in the market come with preassembled parts so you can easily install the product. While installing the unit, you will have to make sure that the bathroom has two pipes, one for cold water inlet and the other for hot water outlet. And read the manual for guidance on periodic maintenance.

Error Code 11 What is it?

Error Code 11 is one of the most common types of errors shown in any Rinnai Tankless Water Heater because of no ignition.

Error Code 34 What is it?

The error code 34 means that there is a problem with the combustion in air temperature.

Error Code FF What is it?

If your service guy has just repaired the problem in your Rinnai tankless water heater it may just currently be showing the FF error code

Wrapping Things Up. In Conclusion…

The propane tankless water heater from Rinnai is one of the best tankless heaters available in the market. Their tankless water heaters are powered by either propane, gas, or electricity. Whereas in this article, we have listed their top 5 tankless propane water heaters available in the market.

Along with the list of 5 best units, we have also provided you with the buying guide focused on factors that you should consider when purchasing one for yourself. To conclude, we would recommend you first analyze the pros and cons of all the above listed Rinnai water heaters and buy the one that suits your needs.  The choice is yours to decide which one you like the most.

Some Additional Info about Rinnai

Rinnai is one of the leading brands in manufacturing propane tankless water heaters. This brand was founded in the year 1920. When this brand was launched, they used to manufacture and sell pressurized oil cooking stoves. In the 1930s, Rinnai expanded its market and started manufacturing various gas appliances, including cooking stoves, space heaters, ranges, and more. By the year 1964, Rinnai was able to manufacture its first water heater.

Rinnai has its headquarters in Japan. Since the demand for water heaters started to increase in North America, Rinnai’s North America operations expanded their business by establishing a state-of-the-art distribution, research, and training facility in Georgia. Later on, they started a training facility in California as well. Up till now, Rinnai has sold more than 30 million tankless water heaters in all over the world.

Moreover, quality and safety were the major concerns for Rinnai. Rinnai has around 600 research and development engineers to ensure that each of the tankless water heaters they manufacture has an excellent performance output. Rinnai America is amongst some of the providers that have its own Canadian Standard Association Certificated Testing Laboratory. Finally, all of their products pass the strict standard of American National Standard Institution before they are launched in the market.

Additional Leading Brand Tankless Propane Water Heaters

Although Rinnai is amazing, there are other brands that you should also explore when choosing a tankless water heater powered by propane.

Priced Under $900
$899.95 Rated 5 out of 5 (2 ratings)
as of 01/07/2021 06:56:30 pm

Rheem RTG-70XLP-1 Tankless Water Heater, Grey

Priced Under $560
$556.79 Rated 5 out of 5 (5 ratings)
as of 01/07/2021 06:56:30 pm

Noritz NR50ODLP Outdoor Tankless Water Heater, max. 120,000 Btuh, 5.0 Gpm - Liquid Propane

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Sergio “Dr Surge” Miller

Best Surge Protection Staff Writer

Sergio Miller has been a staff writer at Best Surge Protection since 2016. He has been a science journalist for over eight years, covering a wide variety of topics, from computer algorithms to high tech electronics. Since joining Best Surge Protection, he has researched, tested, and written about surge protectors, power banks, generators, water heaters, and more.

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