Water heaters are an important part of any home. They provide hot water supply for our different everyday needs. The conventional water heaters that we are used to generally have huge, bulky tanks. Unlike that, there are some models which operate without the need of one. These are called tankless water heaters. Since there a lot of brands that manufacture tankless water heaters, you have a lot of options to choose from.
Every brand provides different kinds of speciality with its various products. As a result, the different models can cater to the diverse needs of the customers. Among these, Rinnai is the brand that offers the highest overall performance of any brand.
Rinnai is a Japanese manufacturing company which is a global leader that has almost 100 years of experience as a water heater manufacturer. They are also one of the leading companies in North America. They have had a long history of bringing comfort and satisfaction to its customers. Along with that. they backed by various professional service providers. Despite being generally more expensive, they offer great performance and quality operation. Therefore, Rinnai has gained a great reputation in its field.
In this list of ours, we have named some Rinnai water heaters so that you can find one that best suits your requirements!
Best Rinnai Tankless Water Heater 2021
1. Rinnai V65EP Tankless Water Heater, Large, V65eP-Propane/6.5 GPM
The Rinnai V65EP is a great Rinnai product and is mainly ideal for use in manufactured or used homes. This is actually a rarity among water tanks. Additionally, It offers a good 6.5 GPM flow rate which is perfect for an average-sized home with two bathrooms. It is meant for outdoor installation and can be used at altitudes as high as 10,200 feet.
Even though it offers good features, Its performance might turn out to be underwhelming. In comparison to other similar models, its performance is average. This is a non-condensing propane-fueled unit. It is also about 82% energy efficient; all that for a reasonable price as well. Therefore, it is a good option in general and the best option for those in a mobile home to use.
- Leak And Scale Detection
One of the Rinnai V65EP prominent features is the enhanced scale and leak detection. The leak detection mechanism automatically shuts off the unit in case of a leakage. That, along with the enhanced level of scale detection works well in order to avoid any damage to the unit. This helps in preventing the unit from breaking down and reduces the number of maintenance checks required.
- Easy Installation And Sleek Design
The unit is surprisingly easy to install. Although, the prerequisite for the warranty requires the unit to be installed by a licensed professional who has taken part in Rinnai's installation training class. Otherwise, the warranty will be void.
Since it is an outdoor unit, it doesn't require much of a venting system either. It also helps users save money on utility bills as it doesn't need a pilot light to ignite the burner.
It has a very sleek and compact design which allows you to install it out of sight. The unit can be put up in any place the user requires.
The Rinnai V65EP model is an outdoor, propane-fueled tankless water heater. It offers several in-built features that are absent in other similar water heater units. Its flow rate and compact size which makes it a good choice for those living in smaller houses.
2. Rinnai RL Series HE+ Tankless Hot Water Heater | RL75eN - Natural Gas | Outdoor Installation
The Rinnai RL75eN is a remarkable model from the HE+ series line of Rinnai. It grabs your attention right off the bat. RL75eN is made to be put outside and works on propane. Moreover, it provides up to 7.5 GPM flow rate which is decent for any small household.
This model also features the brand's iconic circ-logic technology which helps you conserve water. Due to this, you will save water. You also wouldn't have to worry since your energy bills will also be lowered. When maintained properly, the unit provides flawless and satisfactory service to the user. Along with that, the unit is also pretty durable. It is tough and is able to withstand almost all kinds of temperatures and conditions.
- Control-R WiFi Module
The Rinnai RL75EN includes a built-in WiFi modem which gives you an ease of operation and ensures best results. That is, this model is equipped with Control-R WiFi module which lets you connect your mobile device to the water heater so that you can operate it remotely. As a result, you can change the settings and control the heater according to your wish.
- Circ-Logic Technology
Their patented Circ-Logic technology is one of the best re-circulation technologies that you can get in a tankless water heater. This re-circulates hot water through your pipes to provide you with hot water fast. Because of this technology, you can save water while you use the unit over long hours.
The Rinnai RL75EN is one of the best options for personal use. This is because it offers an adequate GPM for a small to medium households. You can find every feature one can get in a professional unit.
Thanks to its water re-circulation technology, this unit cuts down on your energy bills. So, this model is ideal for those who have small living spaces such as cabins and want good features.
3. Rinnai V65iP Tankless Water Heater, Large, V65iP-Natural Gas/6.5 GPM
Since the advancements in technology and innovation have prompted different manufacturers to create a number of sophisticated tools, Rinnai has also stepped up to it. Rinnai V65iP indoor tankless water heater is perfectly reliable, cost-effective solution for medium-sized homes. The consumer can instantly notice a significant reduction in energy costs.
The V65iP features a completely compact body which helps in saving space. Moreover, it is light in weight and comes with a mounting option. As a result, it is easy to install.
The unit also gives a 6.5 GPM indoor tankless water heater can be suitable for any type of uses. The high efficiency made this type of indoor low NOx tankless natural gas water heater a perfect choice. This kind of a natural gas water heater is good to provide hot water instantaneously or ‘on-demand’.
- Automatic System Protection
The Rinnai V65iP provides hot water but also protects your investment and property. It features an automatic leak detection water shut-off and anti-frost protection. The automatic leak detection will close the water supply valve if there is a leak inside the unit. If the temperature drops the unit will turn on at low power to keep the water in the supply tube from freezing and damaging the pipe.
- WiFi Control Module
Similar to the Control-R functionality, this unit has a WiFi connectivity option which allows you to connect to mobile devices. This can be done by using the Rinnai app to control your unit and change its settings from anywhere. Because of this, you might find it handy if you want to return home to a refreshing hot shower.
- Multi-Use Application
The Rinnai V65iP safely uses natural gas to heat water as it passes through the heat exchanger. It provides a generous flow rate of 6.5 gallons of hot water per minute, which means that you can run two showers, a laundry machine and a faucet at the same time.
The Rinnai V65iP is a propane-fueled tankless water heater with volume that is ideal for families of four or five. You can run multiple multiple outlets at the same time, which ensure that you never run out of hot water.
It can prove to be a great buy with the number of features it provides. The good flow rate along with the WiFi capability, this product can prove to be an ideal choice for most households.
4. Rinnai RL75iN HE+ Tankless Hot Water Heater | Indoor Installation
The Rinnai RL75iN tankless water heater is an indoor, non-condensing, energy-efficient unit. Coupled with a good 7.5 GPM that the unit offers, this is the perfect option for an electric tankless water heater solution that is suitable for both residential and commercial use. It is a powerful gas tankless water heater that can provide an endless supply of hot water.
This tankless water heater is a great product from Rinnai's luxury line. Moreover, It is one of Rinnai's top-selling models and holds a high reputation in giving solid results.
This also features their well-known Circ-Logic technology which recirculates water according to set patterns by the user. They are SCAQMD approved and allow up to 5 fixtures. It is an excellent unit for warmer climates and pretty sufficient for places with cooler groundwater. Along with this, they are also capable of Wi-Fi connection.
- Advanced Scheduling Technology
The 24-hour digital controller helps program and schedule your daily showering and water usage patterns. Furthermore, if your home has an Amazon Alexa setup, you can even control it with voice prompts.
- Self Diagnosing Capability
RL75iN will alert you whenever any problem arises or if maintenance is required. This is because of its easy-to-use digital electronic panel is used for running diagnostics and displaying error codes. The unit is also WiFi-enabled, which enables you to add Control-R to monitor and manage it remotely.
- ThermaCirc360 Technology
The unit features the wonderful ThermaCirc360 technology used by Rinnai tankless water heaters. That is, this recirculates hot water through your pipes to get you your hot water immediately. This helps to save water and conserve energy. As a result, the consumer can benefit greatly by cutting down on the monthly energy bills.
- Temperature Lock System
The temperature lock system prevents accidental changes to the water temperature and settings. This feature can be very useful to protect the system if you have children.
Overall, this product delivers the quality promised by Rinnai and is up to its standards. It is highly energy-efficient and easy to use. So, it sets a good example for the RL models. Its compact design also makes it suitable for indoor use in medium-sized households.
5. Rinnai RL Series HE+ Tankless Hot Water Heater | RL94eP - Propane | Outdoor Installation
The Rinnai RL94eP is the perfect option for any home. You can use it for a small apartment as well as a large home with many rooms. It is a gas-powered unit and has a great flow rate of about 9.4 GPM. It also conserves energy and water supply making sure that there is zero wastage. The unit can handle a wide range of temperatures, so it is a great option no matter where you live.
The only flaw about the unit is that some customers might not find it as budget-friendly as the other models. Despite that, the long durability of the heater and the various features it offers make it a relatively cost-effective option on the market. So, you can get a constant, unending flow of hot water at a reasonable price while saving over 40% of energy.
- Smooth Installation
The installation of RL94eP is fairly easy although Rinnai clearly states in their warranty that they will cover any damages if the unit is installed by an unlicensed plumber. It can be mounted on both interior and exterior walls. Additionally, the venting system requires exposure and it needs protection from elements. Fortunately, the unit comes with a number of valves so you don't have to worry about purchasing them.
- Convenient Temperature Range
Another benefit that the unit offers is that it can reach temperatures between 98 and 185 degrees. The dial is really easy to operate, you just have to turn it to the temperature that you want. This allows the user to adjust the heat just how you like it. So, it is useful whether you need it for washing or bathing. You can enjoy the ease of use and satisfying performance just like you want!
The Rinnai RL94eP is ideal for those who live in a medium household want a water heater to install in a small area. Moreover, This is the best in the market and can provide for your family needs. Although you might need to compromise with the budget. Rest assured, it will deliver optimally and satisfy your needs.
The Rinnai RUC98iN Ultra Series is a gas-powered tankless water heater. It is suitable for home as well as commercial use. Additionally, it works using a twin-pipe or concentric PVC venting options. Also, its gas and water supply inlets and outlets are larger than most similar models. It uses an electric ignition system which is comparatively less energy-consuming than a pilot light.
The model offers a good 9.8 GPM which can sustain up to 6 hot water fixtures. It lacks is a re-circulation system but it is a good budgeted option for those who do not need it. You will also have a good experience with the WiFi connection capabilities which allows you to monitor the unit.
- Highly Energy Efficient
The RUC98iN is a great option in terms of efficiency. That is, it is 96% energy efficient and works on condensing natural gas or propane. Apart from this, the uniform energy is 0.92 which is quite good in the long run. So, you can run the product for long hours and service multiple fixtures with it.
- Dual Venting Option
This Rinnai tankless water heater comes with two ventilation options, that is, PVC and concentric. As a result, the gas consumption is also low. This technology saves fuel all the while keeping the product safe.
- Good Warranty
The unit comes with a 12-year long warranty on heating elements and a 5-year warranty on other various parts. The water heater is constructed with durable materials. This also involves high-end specifications which let the product be ready for long hours. To add to this, a 1-year warranty on labour makes it a great choice.
The Rinnai RUC98iN is one of the best models you can get from Rinnai. Its condensing technology and venting options make it highly energy efficient. Along with that, it offers great features and a high GPM which can provide multiple faucets. It is best suited for those with medium households with about 4 showers. So, if you need high-efficiency, high output tankless water heater, this is a great choice for you.
7. Rinnai RU199iN Sensei Super High-Efficiency Tankless Water Heater | 11 GPM - Natural Gas: Indoor Installation
The Rinnai RU199iN offers the best efficiency out of all the similar models. This is because of the super efficient heating-coils. It also operates without a pilot light so you save on utility costs and energy. The model is Energy Star qualified with a Uniform Energy Factor of 0.93. Uniquely, this model offers a whopping 11 GPM of flow rate which can satisfy the needs of almost any households.
It sports premium technology with increased energy efficiency and optimized LEED eligibility. Correspondingly, it can increase your home value. You can even qualify for energy efficiency rebates and tax credits. So, it is surely a great investment.
- Circ-Logic Technology
This unit is equipped with the Rinnai Circ-Logic technology. You have to pair with an external pump to reduce wait time for hot water through scheduled or on-demand circulation. This technology recirculates hot water through your pipes to get you hot water fast.
- Saves Valuable Space
Its compact size and design allow for installation in any space the user desires. It can be installed easily and put in places where it can be out of sight.
Rinnai RU199iN has been receiving great reviews from customers all around. It offers a flow rate of 11 GPM which is more than enough for almost any household. Along with that, the WiFi capabilities and the various different features make it a great option for those with a high demand for hot water.
8. Rinnai RL Series HE+ RL94IN Water Heater : Indoor Installation, 9.4 GPM, RL94iN-Natural Gas/ 9.4 GPM
The Rinnai RL94 offers Rinnai’s most advanced technology in non-condensing tankless water heaters. It is also one of Rinnai’s RL models that are high efficiency plus(HE+) production of tankless water heaters. You can experience endless hot water and good energy savings, along with the addition of WiFi monitoring and recirculation technology for faster hot water delivery.
This model also features their well-known Circ-Logic technology which recirculates water according to set patterns by the user. This allows them to coincide with your general habits so that hot water is available right when you need it. This unit is a great option for residential and commercial usage.
- EZConnect Feature
The heater has an EZConnect feature for connecting two or more units. Three or more units can also be connected using the MSA control board.
- Energy Efficient
This electric tankless water heater model runs on the uniform natural gas ignition which is very energy efficient. It works better than any of the electric-based heaters. It also performs well at lower temperatures whilst consuming low energy.
- ThermaCirc360 Technology
One of the most advanced platforms of heating in the Rinnai segment features the iconic Circ360 Technology. This technology improves the health of the product by recirculating hot water through the pipe for faster heating so you can get on-demand hot water without any difficulties at all. It reduces water wastage and heats water efficiently.
- Lightweight And Compact
It is small and light in weight but has many great features. Its sleek design not only gives it an elegant look to match your bathroom aesthetics but also makes it easy to install. It can be placed in almost any room. It doesn't require any additional venting either.
Despite a few shortcomings, the Rinnai RL series HE+ RL94iN is one of the best tankless gas water heaters that you can find. Mostly, customers have had a very positive review of the product.
The unit is a good option for medium to large households and can support multiple fixtures at once.
The RUR98iN is a condensing indoor natural gas tankless water heater. It serves to be a good overall tankless water heater. The model guarantees satisfactory operation as well as a number of great features. It offers a maximum of 9.8 GPM which can fulfil the needs of multiple fixtures at a time.
It also has a dual ventilation system and hence, can condition your home. This unit is the best option for large households. This is mainly because of it being easy to install and has a number of accessories.
- Easy Installation
Since this heater is so easy to install, one can install it themselves. It comes with its own installation manual which helps you in installing. If you were to find any difficulty during installation, you can call Rinnai's support team who can guide you through the process. Since the customer services have a good reputation among customers, you don't need to worry about installing the unit.
- No Additional Parts Required
Unlike most water heaters, you don't have to invest in extra parts or expansive parts to get this unit working. Although, some water heaters can be more of an investment than you first think. Fortunately, you don't have to worry about this with the Rinnai RUR98iN since it requires no such parts.
- Suitable Energy Rating
Another great thing about this water heater is that it is highly energy efficient. After all, you wouldn't desire that a water heater leaves you with high utility bills. Since the RUR98iN comes with 0.96 energy efficiency which means that you wouldn't have to pay much attention to the unit to keep it running.
This unit is a good option for a large family. The Rinnai RUR98iN maximizes the benefits without raising energy bills. Although the price might seem to be a bit high, you'll be glad since it will save you money. However, it might not be really suitable for small homes. All in all, it is a great option with high quality and is ideal for large-scale uses.
10. Rinnai RLX94iN HE + Tankless Water Heater, Natural Gas, Indoor Installation/Large
The Rinnai RLX94iN is the best high-efficiency, non-condensing models available on the market. This is a natural gas powered unit. The luxury series has a few simple differences as well, over the RL series.
There is also a good flow rate. The RLX94iN offers a flow rate of about 9.8 GPM. Even though this might not seem like much, when it is taken with more BTUs, it gives an increased UEF score. Due to this, your hot water showers can last for longer times.
- Good Internal Components
The interior components are made from stainless steel. So it provides long life and stability to the product. However, the presence of PVC pipe housing from the heater makes sure that there is no limestone formation. But to keep it working well, you may have to maintain the product once in a month by flushing it.
- Easy Installation
Unlike the normal heaters, the RLX94iN is comparably lighter. In addition to that, a wall mounting option is also available. This allows you to easily install the water heater in just a few minutes.
- Re-Circulation Technology
The product's Circ-Logic Technology helps conserve water. This technology works by circulating the hot water to keep it warm for long. Thus, it helps to conserve both water and energy with the help of this process. So whenever you need the hot water, you can get the supply.
Buying a tankless water heater can be a great hassle. Although, when choosing the right model, make sure to work with a Rinnai installer to determine to select the right tankless water heater to suits your needs and meet your expectations. Ask questions such as:
- Do I run out of hot water?
- Do I want to run multiple showers or do the laundry and wash dishes at the same time?
- Does hot water requirements change during different times of the day?
- Do I want a recirculation solution to get hot water faster?
There are also a number of things you should consider before buying a Rinnai tankless water heater.
The company recommends that the tankless water heater installation should be performed by a licensed contractor who is trained to handle the plumbing, gas, electrical and venting aspects of a tankless water heater and is aware of all local and national gas fuel codes. Having a non-licensed professional perform the installation can cause operational and performance issues.
Location of Installation
The clean, modern and space-saving design of Rinnai Tankless Water Heaters gives you the flexibility to install on virtually any wall inside your home—not just in the utility room. And to save even more space, you can even mount a Rinnai Tankless Water Heater on the outside wall of your home.
Rate of Flow
The flow rate is one of the most important features when it comes to getting a water heater. It is practically measured in the GPM which is sent through the pipes. Since there are no tanks or reservoirs present with the Rinnai Tankless Water Heaters, the heating is done through the flow pipe. This rate of flow determines how much-heated water you will get in one minute.
So, the higher the flow rate that you have with your heater, the higher the quantity of hot water is what you can get. Generally, tank-type heaters come with a flow rate of 4 GPM to 8 GPM. But when it comes to the Rinnai Tankless Water Heaters, the flow rate is roughly around 6.5 GPM to 9.8 GPM. Therefore, you should select one considering your hot water requirements.
Depending on placement within the home, interior models of Rinnai Tankless Water Heaters can vent vertically through the roof or horizontally through an exterior wall. Rinnai offers multiple venting options for the super high-efficiency models that offer optimum safety and performance. Not to mention convenience and ease of installation for your installer.
Gas Line Sizes and Fuel Types
The power source of the tankless water heater is the next most important factor. The Rinnai product line of tankless models is available for natural gas or liquid propane fuel types, which offers increased efficiency and lower carbon emissions. The different models from the manufacturer mean that they will have different power inputs. So in terms of power source, the Rinnai Tankless Water Heaters offers mainly natural gas options.
Does Rinnai make electric tankless water heaters?
No, Rinnai does not make electric tankless water heaters. As a company, they feel that there are several potential drawbacks to electric heaters (cost per BTU, energy draw, etc.).
How long do Rinnai units last?
Rinnai tankless water heaters can last as long as twice that of a standard water heater, or 20 years. Other factors go into the longevity of the heater, such as water quality, upkeep of the unit rate of use and maintenance.
Do the Rinnai water heaters have pilot light?
There is no pilot light present on the tankless water heaters since they can be operated with electronic ignition.
How do you flush or drain a Rinnai hot water heater unit?
Although there is no complication to flushing a Rinnai tankless water heater system, it might turn out to be time consuming.
First, shut the power off to the unit then close the hot and cold water shut off valves to the system.
Secondly, using the service valve, connect a hose and pump, and pump a flushing mix. Using a second service valve, connect a hose to empty into a bucket. Note: both the pump and drain hose should end in the same bucket.
Open the valves, turn on the pump, and let the system circulate. When it is complete, restore the unit as before, open the hot and cold water valves and rest the system.
Can I set up my Rinnai unit for winters?
Yes, you can. To winterize your water heater (outdoor mounts), you close the inlet valves on the hot and cold lines, remove the service valve caps and then open the service valve handles. Once the freeze danger is over, reverse the steps to return to the standard method of installation.
In case you are looking for a tankless water heater which offers high performance and is reliable, Rinnai is definitely the answer. Due to the extended warranty and durable units, you don't ever have to worry about taking a cold shower or running out of hot water ever again.
You can select from the options of natural gas or propane units, whichever suits your needs better. All in all, Rinnai models are generally suitable for every type of home.
With this list, we aim to bring some of the best of Rinnai's products to your attention. We hope it has aided in your search for a perfect tankless water heater for your home.