Rinnai V65iN Tankless Water Heater Review | Is it a Good Tankless Water Heater?


Rinnai V65iN Tankless Water Heater Review

Is it a Good Tankless Water Heater?

I have owned a few Rinnai water heaters over the years including the theV65iN, and I can tell you that Rinnai is one of the best tankless water heater manufacturers on the market. There are so many features of this water heater that it is hard to decide where to start. 

The V series tankless heaters are the Rinnai “Value” range of indoor models, they are also intuitively named so that the model name tells you a lot about the unit specifications. V for value, 65 refers to the maximum 6.5 GPM flow rate of the unit, and the “I” lets you know this is an interior so it will need ventilation, “N” is because this is a natural gas unit.

The V65iN can be used for residential water heating purposes and can also be used for central heating however be aware that there is no warranty for installations inside closed-loop applications, including central heating systems. So if you want a water heater for central heating this is probably not going to be your best choice.

Best Overall

Stiebel Eltron

Rinnai V65iN Tankless Water Heater

6.56 GPM 0.82 Energy Factor Rating Gas, Indoor

About this item

  • Rinnai’s V65iN gas-fired tankless water heater is designed to provide you with hot water on demand.
  • The unit features a high-performance 6.3 GPM flow rate for a powerful, constant stream of hot water and an energy efficient design that conserves energy as it heats only when necessary.
  • This space-saving model is guaranteed to last 10 years and comes with a 5-, 1-, and 90-day money back guarantee, respectively.

Avg. Customer Review


Rinnai V65iN – What We Really Liked

Fast Water Heating

Thanks to Rinnai’s highly efficient heat exchangers the V65iN will be at full efficiency almost instantaneously. This saves you on water and gas, it is recommended that the unit is installed close to where you are going to be using the most hot water, usually in the kitchen or laundry.

Very Quiet

One important consideration for an indoor tankless water heater is how much noise it will make, this is even more important if you live in a house where people will be using hot water at unsociable hours. Nothing will cause arguments in a house quicker than when a noisy heater keeps people awake. 

The V series are whisper quiet, they make a small amount of noise when the unit is firing up, but once operational you would hardly know it was working. 

High Flow Rate

If you have good water pressure then this water heater will provide you with up to 6.5 Gallons of hot water per minute. The average showerhead uses around 2 GPM so this heater will provide enough hot water for 2 possibly three showers, at the same time. But if you have more than one bathroom we would recommend looking a the bigger V75iN unit this heater is quite similar to the Rinnai V65iN , but it has a higher water capacity of 7.5 GPM making it more suited.

Economical and Efficient

This heater has an energy rating of .82 which is average in its class and price range. Even though it doesn’t compare well to other heaters of this type, we found that if you simply want a tankless heater for your home or small business, the Rinnai V65iN is still a worthwhile option, it will outperform most others at a similar price point.

Depending on the input water temperature, and temperature output settings of the unit it will use between 10,300 BTU’s and 150,000 BTU’s of natural gas per hour.

Low NOx Burner

NOx (nitrous oxide NO & NO2) are waste gasses produced during combustion, they are toxic and pollute the atmosphere. The V65iN is SCAQMD Approved and classed as an ultra-low NOx burner which means emissions are less than 14 ng/J or 20 ppm NOx. 

It achieves such high efficiency by regulating the fuel-air mixture to reduce the overall emissions, making it better for the environment.

Low Water Flow Requirement

Although it can output quite a high volume of water this unit has a very low initial water flow requirement, so it will operate even when the pressure is quite low, or a hot water tap is only running at a medium trickle. The manufacturers quoted range is a low flow rate of 0.26 GPM and a maximum of 6.5 GPM (1.0 – 24.6 L/min) 

Simple Digital Temperature Control

No more fiddling with the hot and cold to get the perfect shower temperature, you can simply dial in the desired water temperature and the unit will keep the water coming at the ideal temperature for as long as you keep the tap on.

Rinnai Indoor Tankless Water Heater

Patented Condensing Technology

Rinnai takes efficient water heating one step further by delivering more efficiency than ever before. Their patented design incorporates an innovative multi-stage heat exchanger to achieve optimum heating efficiency, wasting less heat through exhaust gasses.

Traditional non-Condensing tankless water heaters allow hot gases to vent directly outside. pushing wasted heat outside the unit. Condensing water heaters extract the additional heat from exhaust gases in various stages, making them far more environmentally friendly when compared to conventional tank-based units.

Inbuilt Safety Features

Rinnai incorporates a host of safety features, such as flameout detection, overheating sensors, and gas leak detection. these are especially important for indoor heaters because as you can imagine a gas leak indoors can be very dangerous and even deadly.

Ideal for Small and Mid Size Households

The Rinnai V65iN’s compact size is a perfect fit for small bathrooms and kitchens as well as those with limited space. It measures 9.27 in / (235.5 mm) Deep, 26.9 in / (684 mm) in Height and only 14.04 in / (356.6 mm) Wide.

Durable Construction

Although this is the value range, you can still be sure you are getting the highest quality build, they are still built of quality stainless steel and pass Riannais strenuous quality control.

Great Warranty

The Rinnai tankless water heater warranty is impressive. You get an amazing 10 years warranty on the heat exchanger, 5 years on all other parts, 1 year on the integrated controller, and a limited 1-year labor warranty. 

Rinnai Indoor Tankless Hot Water Heater

There are some exclusions to be aware of, like the previously mentioned voiding of your warranty if the unit is installed for central heating.

The warranty is also shortened to 3 years if the heater is installed in any closed-loop system, or in a series with other heaters.The big one to watch out for is the “poor water quality” for most households this will not be an issue, but if you are using a well water supply be aware this could cause issues and void your warranty.

This is why we always recommend a whole house filtration system if you are going to use a tankless water heater on well water.

Rinnai V65iN – The Not So Good

Initial Purchase Price

Although this is not an expensive tankless heater it is far from a budget unit.

Will Require an AC Power Source

This system does require connection to mains power, so if you do not have an AC power point near where you are going to install the unit, then you will need to factor in the cost of getting an electrician out and installing a new GPO.

It Needs Special Venting

Because this is an indoor condensing unit you must install the appropriate ventilation system, if you do not the system will not work properly. Make sure if you buy the unit you also buy a ventilation kit to suit it.

Installation is Not as Simple as Other Units

Because these heaters need special ventilation kits they are not as simple to install as an external heater such as the Rinnai V65eN. This means that the install cost will be slightly more than it is with other units.

Maximum Temperature Set to 120 Degrees

This is not really a big issue as 120F is plenty hot for most people, but if you like really hot water then the standard manufacturer’s settings may be an issue for you. There are ways to alter this but you will potentially void the manufactures warranty.

Ease of Use and Reliability

Once installed the V series heaters are simple to use, thanks to the digital control unit they also offer great control over your water temperature. If you have your unit serviced regularly, they are a very reliable unit that will give you decades of use. Like all tankless water heaters, they can be affected by scale build-up so it is recommended that they are flushed once every 6 to 36 months, depending on the hardness of your water.

The Average Cost

These are a good value unit, depending on where you buy your unit they will cost between $650 – $800 plus you will need to get the condensing ventilation kit which is usually around $100. Although not the cheapest water heater available, this unit is going to save you money over time. Firstly because it is very efficient so your gas bills will be low. Secondly, Rinnai water heaters are known for their long service life, saving you money on costly repairs and replacement.


What are some other options for water heaters that are similar to the Rinnai v65iN?

In our opinion, the closest comparison to the V65iN is the Eccotemp EL22i-NG. It has a slightly higher, but almost identical maximum flow rate of 6.8 GPM is similar in price, has the same energy ratings, and also has a 10-year warranty.

What was the hardest part of installing the V65iN water heater?

The most complicated part of the installation is setting up the ventilation system, many people who attempt to do this themselves have run into trouble.

Where does V65iN stand if we compare it with a traditional storage tank water heater in terms of energy consumption?

Because the V series are instant tankless heaters they only consume gas while in use, making them far more efficient than older storage heaters, this will typically result in around 1/3 gas-saving for an average household.

Final Verdict

Having reviewed every aspect of the Rinnai V65iN we can to anyone that it is a very good water heater. Ideally suited for those who are looking for a quality tankless water heater, able to service a small to average-sized household. And, although you will pay slightly more initially, we believe that this is money well spent for the peace of mind knowing that you will get years of reliable use.

Best Faucet Water Filter | Verified Products

Best Faucet Water Filter

Best Faucet Water Filter | Verify Products

Before I get into the nitty-gritty of this guide to the best Faucet Filters I want to start with a little story that will make it clear how important it is to have a good quality faucet filter on your drinking water. We all know that the water that comes from our town supply is not exactly chemical-free. But tonight that was made very clear to me in the simplest of ways. 

I promised you a story, and here it is. Tonight in a hurry I filled my toddler’s water bottle from the bathroom faucet instead of from the kitchen which has a faucet water filter attached. Thinking nothing of it I gave it to her. She promptly scrunched her face and said, “this water smells funny.” I said “What do you mean?” and then she told me “it tastes sour.” 

Now, my toddler is just speaking her mind, but we all know she is right. The quality of the water coming out of your faucet is “safe” to drink but it is full of added chemicals that make it taste terrible and may be detrimental to your internal gut health.

Along with the added chemicals, your water picks a lot of Contaminants along the way to your faucet. And obviously, you will never want to drink or use foul taste and polluted water. So, the ideal solution is to have the best faucet water filter that you can afford so that you can drink Contaminant free water in  2021.

Why faucet filters are the best value option

What I love about faucet water filters is that they provide purified drinking water, without the price tag of a larger RO system. Being that they are the most inexpensive and yet effective way of purifying water, they are the most commonly installed household filter, and they fit easily onto your water spout.

This is why I decided to write this guide, to help you choose the best faucet water filter for your situation as it may not be an obvious choice if you have not done much research yourself. There are a lot of options available in the market but not all are equal. And buying the most recognized brand name does not guarantee that you are purchasing the best and the most effective faucet filter.

To save you hours of research, I have spent combined my personal experience, with hours on research to create a list of the best faucet water filters for you. Our comprehensive review will help you to make an informed decision based on value and of course how much money you want to spend on your faucet filter.

All the faucet filters I have included are of different sizes and a different price range so that you can choose according to your own requirements. Along with the Top 10 Filters, we have also created the buying guide for you. If you have only just started looking for a faucet water filter, then you may also want to have a look at the best countertop water filter buying guide. After reading the buying guide, you can choose more effectively from our top 10 list.

Best Faucet Water filter Comparison Chart


Culligan FM-25 is one of the best faucet water filters due to the sheer number of advantages associated with this unit. After examining the unit thoroughly, we have not found any other unit suitable for this position in the top 10 list.

Other faucet filters of the Culligan does not work well. But the Culligan FM-25 is the exception. That’s why it is becoming the top-rated unit in its category.

Unlike some other brands, Culligan is the compact designed faucet water filter. The capability of removing impurities, odor, and bad taste is also incredible. It is working for its users like a charm. The number of impurities and minerals that it can remove is also the broader one.

Filters of this water should be replaced after 200 Gallons. Although, there is no indicator within this unit that can indicate at the time of replacement. When the water flow becomes slow, it’s mean you need to change the filters.

The installation can also be done easily. Tighten the filter with the faucet head and it’s all done. Now you can easily filter the water coming out of your faucet. After the installation, the diverter tab allows you to decide when the water should be filtered when not to.


Culligan is making its place in most of the household of the USA due to its tremendous capability of removing a great number of impurities, odor, and the foul taste from water.

The filter’s longevity is one of the most attractive points of this unit because other well-known and best faucet water filters have the maximum capacity to filter water up to 100 Gallons. But it filters up to 200 gallons.

Along with it has one of the best customer support service, provided that 800 Numbers available to contact. They provide you a limited warranty of 2 years, which shows the confidence of the manufacturer over Culligan FM-25.

  • Great tasting water
  • Automatic shut off valve
  • Customer Support
  • Filter water up to 200 Gallons
  • Ease of installation
  • A little bit more effort is required to change the filter relative to the installation
  • Filter replacement Indicator

2. Brita on Tap Faucet water filter

When it comes to having the budget choice faucet water filter, we can’t recommend you any system other than Brita on the Tap water filter. Having great-tasting filtered water is now possible by spending reasonable money. Obviously, it does not seems too expensive like others.

It does not remove the larger number of impurities and minerals from the water as Culligan does. But can remove all the major concerned and harmful contaminants from your tap water like lead, chlorine, benzene, etc.

Brita on Tap water filter can filter the water up to 100 Gallons which is more than enough. In simple words, it filters the water that is equal to 750 Standard 16.9 oz. plastic bottle water. Having this unit attached to the head of your faucet will ultimately save you money and obviously, will be environmentally friendly.

The filters are of great quality that can last for approximately 4 months. The filter replacement period may vary, depends on the quality of water coming towards your faucet. But don’t worry, the manufacturer has incorporated the light sensor indicator that will let you know the time when filters need to be replaced.

The filtered water and the unfiltered water will be separate, and even you can switch between filtered and unfiltered water within a fraction of a second.

The installation process is also straightforward, you can easily get it done within 5 steps, clearly defined by the manufacturer in the manual. The competitive edge of this unit is that instead of cutting down the water pressure it increases the water pressure. This is one of those features that we rarely found in other faucet filters.

Do you want to remove odor and the foul taste from the water along with other harmful particles?

But don’t want to spend too much?

Then Brita on Tap water filter would be the best fit for you. You will get all the problems solved without investing too much. Before purchasing this unit, keep in mind it does not fit well with the spray style faucet.

 It can remove up to 60 different types of contaminants that must be removed from your water, which ensures that you are drinking the well filtered and purified water. Unlike other filters, it brings peace of mind.

It is recommended for those who want to cut down their plastic bottle spending and want to have the great tasting purified water right from their kitchen. It is the better choice, as it saves you the money in the long run and will ultimately reduce the plastic bottle waste. The unit has the ability to match with the modern kitchen décor.

  • Fast water flow
  • Ease of installation
  • Filter replacement indicator
  • Budget Choice
  • In some units, light sensor dies quickly
  • Does not fit to only spray style faucet

3. PUR FM 3700 3 Stage Advanced water filter

PUR has been providing the solution for polluted water for the last 30 years. They have their own history in the industry of water filters. Being a well-known company, they always bring innovation into their products to provide the most reliable way of water filtration.

PUR FM 3700 is one of their bestselling units due to its performance level. It is the most suitable option to avail of having quick and stable access to filtered water. PUR has reasonably priced this unit so that almost every household can grab it for their families.

PUR FM 3700 is capable of reducing 70 different kinds of contaminants from the water, ensures that you are having great tasting purified water from your faucet. The filter of this certified unit filters water up to 100 gallons.

After filtering the 100 gallons from this filter, you need to replace the filter to keep the performance at the maximum level. The standard duration of filter replacement provided by the manufacturer is of 2-3 Months.

Although, you don’t need to overthink the filter life duration. The indicator light will let you know when the filters need to be replaced. PUR FM 3700 is making it affordable for every household to drink superior quality healthy water.

Installation is not that hard, everyone can connect it with the faucet easily after glancing the user guide.


PUR FM 3700 3 stage filter is reasonably priced that attracts a lot of the households. The most important thing is that after attracting a lot of users its feature successfully retains all of them. Even the positive reviews are increasing day by day.

It is recommended due to its sheer number of advantages. The manufacturer provides a warranty of 2 years, which means you can replace the filter in case of any incident. Their customer support is working too well to provide you the best buying experience.

  • Affordable
  • Value for the money
  • Made up to high quality material
  • Ease of installation
  • Certified filter
  • You have to be careful during installation and replacement, otherwise plastic housing can break.

4. InstaPure F2BCT3P-1ES water filter

InstaPure F2BCT3P-1ES is another great option that you can avail of to have great tasting fresh water from your faucet. Like other premium faucet filters, it is also certified and tested to NSF/ANSI Standard. It will save you money by eliminating bottled water from your home. Obviously, who needs the bottled water when he can access superior quality purified water from their kitchen faucet.

InstaPure F2BCT3P-1ES uses Quality coconut carbon to filter the water. It provides a great output because coconut carbon has the ability to absorb organic compounds and pollutants. It ensures that you are getting healthy drinking water from your faucet.

InstaPure F2BCT3P-1ES filters the water up to 200 gallons. So you will need to replace the filters after 200 gallons have been passed through them. The standard life duration of the filter that is provided by the manufacturer is of 3 Months. You can easily switch between filtered water and unfiltered water according to your needs.

InstaPure F2BCT3P-1ES can be attached to most of the faucet styles commonly found, and installation does not require any sort of technical knowledge. You can easily install it within a few minutes.


InstaPure F2BCT3P-1ES is almost similar to other best faucet water filters. They also provide superior quality water for usage. You can switch between filtered water and unfiltered water. Can be easily installed by anyone.

But there is one big difference between InstaPure F2BCT3P-1ES and other faucet filters, and that difference is of filter longevity and the inexpensiveness of the filter. Most of the filters have only the maximum capability to lasts for 100 gallons of filtered water.

Although InstaPure F2BCT3P-1ES has the ability to produce 200 gallons of purified water. Moreover, the filters are relatively cheap so that you don’t have to spend too much when filters need to be replaced.

Are you ready to grab this unit for your family’s health protection?

  • Durable
  • Quality coconut carbon filter
  • Filter up to 200 gallons – relatively longer life
  • Ease of Installation
  • Cheap filters
  • Absence of filter replacement indicator
  • Instructions are not well written

5. PUR FM-9400B Faucet water filter

This is the second unit of PUR in our top recommended faucet water filter list because PUR is one of those brands, whose every product performs remarkably.  

PUR FM-9400B is the compact designed filter that can be easily attached to the head of your faucet. This is made up of plastic but does not look cheap. The reason behind making it of plastic is to make sure that it will not produce pressure on the faucet due to the weight.

The performance is up to the mark. You will get the purified water. But some buyers complained about the leakage. Although, that’s not the case with everyone. The leakage depends on your luck. You must have the metal connector to avoid leakage, if you have not found it inside the box then you can ask for them free of cost.

The filters are certified, which ensures the quality of produced water. They are capable of filtering up to 100 Gallons. Obviously, you don’t want to be busy all the time recording how many gallons you have filtered. That’s why the manufacturer incorporated the LED indicator that will let you the time when filters need to be changed.

When the LED turns Red, it means you need to replace the filters. The standard duration of filter replacement that has been told by the manufacturer is of 2-3 Months.

The one-click installation of the unit brings more convenience for the users and the process of filter replacement is also straightforward.  You can also switch rapidly between filtered and unfiltered water according to your needs.

PUR FM-9400B is a way better than many other faucet water filter. Faster flow rate, LED indicator and the produced water quality differentiate from other filters. The peace of mind will be your fortune after grabbing this unit.

Although there is only a single flaw that some customers report, that is of leakage. But this not happening with everyone out there. So we would recommend you to have the metal connector instead of the plastic connector. It’s a better way to avoid leakage.

The long term users of this unit found it very useful and the best option to avail. Their customer support is playing a vital role in making it one of the best units.

It is available in many colors, order the unit of the color that blends well with your kitchen décor. This premium designed faucet is highly recommended for all of the users.

  • 3 Layers of filtration
  • Compact design
  • NSF Certified Filters
  • One click installation
  • Filter life tracker
  • Produce great tasting water
  • Plastic Connector cause leakage (Use metal connectors)
  • Incompatible with hand held faucet

If you are looking for a larger or more versatile filter check out the other Water Filter Guides.