Judith is a fairy in the world of writing: she manages to turn any topic (far not only a kitchen-related) into an entertaining text that is so easy and educating to read. Fond of gardening, reading, and cooking, of course.
Emily has over 10 years of professional experience using, testing and comparing kitchen appliances. Her knowledge helps to easily and naturally solve everyday problems. She is also the owner of the lifestyle blog emilyreviews.com
Last updated: April 29, 2022
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Why wait for kettles to heat up when you can have instant hot water whenever you need it? Hot water dispensers provide hot water at the touch of a button, perfect for preparing hot drinks and more, and this guide will help you find the best instant hot water dispenser for your home.
We reviewed 35 of the best hot water dispensers on the market, finding that the InSinkErator H-CONTOUR-SS is the top option for most people. It’s easy to install and simple to use, with an impressive temperature range, a classy chrome faucet, and instant hot water on demand. We also looked at four more of the best instant hot water dispensers to suit a wide range of situations and budgets.
We spent many hours reviewing these hot water dispensers and considered a wide range of factors in order to evaluate each model. We looked at the tank capacity and cups per hour specifications, for example, which tells us how much hot water the dispenser can store and dispense throughout the day. We also looked at the temperature range, as some models are able to reach higher temperatures than others. We considered the warranty and dimensions of these dispensers too, along with any extra features found on each model. The table below shows the results of our research, followed by in-depth reviews of each hot water dispenser. Further down the page, you can find a buying guide to help you pick the perfect hot water dispenser for your home.
More features: instant, self-closing valve, tool-free tank connections
Starting off our list of the best instant hot water dispensers is the InSinkErator H-CONTOUR-SS. It’s one of the very best hot water dispensers money can buy right now, and one of the best parts of all about this model is its impressively low price tag. Incredibly, you really don’t have to pay much for quality when it comes to the InSinkErator H-CONTOUR-SS, and you can get a lot out of this model for such a low investment.
To start off, the InSinkErator H-CONTOUR-SS features a compact and well-designed tank that is really easy to install. You don’t even need to use any tools to hook up most of the tank connections with this model, which really saves you a lot of time during the installation process when compared to many other models. The faucet is nicely designed and easy to install too, although some users complain that the aesthetic of the faucet is a little basic and small for their kitchens.
While some instant hot water dispensers still take a little time to get going, the InSinkErator H-CONTOUR-SS really does provide truly instant hot water as and when you need it. It offers an impressive temperature range too, going all the way up to 210 degrees and offering an array of useful applications around the home. Plus, it comes with a 3-year warranty, which is one of the longest warranties you can find in the instant hot water dispenser market.
More features: digital model available, self-resetting thermal fuse, open vented single lever hot water faucet or dual lever hot/cold faucet choice option
If you want to talk about one of the best value instant hot water dispensers you can buy today, just take a look at the Ready Hot RH-200-F560-CH. It’s one of the top options anyone can choose when investing in an instant hot water dispenser, offering a lot of advantages, beginning with its very affordable price tag and stylish design.
The faucet of the Ready Hot RH-200-F560-CH is a big bonus for this model, as you can actually choose between a few different designs, finding the right one to suit your tastes and fit in with your kitchen. Both chrome and brushed nickel faucets are available with the Ready Hot RH-200-F560-CH, and many users of this model appreciate the aesthetic quality of these designs. On the downside, some users complained that the installation process wasn’t quite as easy as they had hoped.
In terms of functionality, the Ready Hot RH-200-F560-CH does a great job of fulfilling its purpose. It can supply up to and over 50 cups of near boiling hot water per hour, with an adjustable temperature setting ranging from 140 up to 200 degrees, which is one of the widest temperature ranges of any model. It comes with a 3-year warranty too for total peace of mind, and there’s even a digital model you can choose for a little extra cash.
Cups per hour: up to 100 – tank, up to 60 – faucet
Tank dimensions: 11.1 x 8.06 x 6.8 inches
Warranty: 1-year limited
More features: open vented safety system, 19-inch hose
Next up, we come to the Waste King H711-U-SN, another of the best rated hot water dispensers on the market today. While many people worry that hot water dispensers all have high price tags and you need to spend a lot of cash to really get the best results from these devices, the Waste King H711-U-SN proves that quality can be attained at a great cost. It has one of the most affordable price tags around and delivers in almost every aspect.
The 1,300-watt hot water tank of the Waste King H711-U-SN is able to provide up to 100 cups of hot water per hour at near-boiling temperatures ranging from 140 to 190 degrees. It’s not quite as wide of a temperature range as some of the other models, and it’s a shame that the Waste King H711-U-SN isn’t able to hit 200 degrees, but it’s still very good at providing super-hot water whenever you need it.
Another area in which the Waste King H711-U-SN really excels is in terms of safety. It comes with a unique safety feature that allows for slight variations in temperature without risking any kind of expansion of the tank or damage to the overall unit. This comes with a slight caveat, as it means that the faucet can drip a little from time to time, but it’s not a major problem and the Waste King H711-U-SN is a perfect budget option.
More features: digital, 6 preselected water temperatures, water filter included
While there are plenty of cheaper and more affordable instant hot water dispensers out there for budget-focused shoppers, the Westbrass HotMaster DT1F271-07 is definitely one of the more expensive models you might consider buying. It has a high price, but it comes with a lot of unique advantages and smart design features that help to justify the price tag, starting off with its digital design.
The Westbrass HotMaster DT1F271-07 makes use of ‘DigiHot’ technology and a digital tank unit with an LCD display showing the current temperature of the water and various other pieces of information. The user can easily adjust the settings via the display, making the Westbrass HotMaster DT1F271-07 one of the simplest instant hot water dispensers to use. It comes with six pre-set water temperature settings too, letting you switch between them on the fly.
With a 2/3 gallon tank, which is quite large but very durable, and 100 cups per hour of hot water, the Westbrass HotMaster DT1F271-07 is an impressive performer when it comes to heating up water, and it has one final secret trick up its sleeve for users too; this model comes with its very own filter, which works to purify and clean the water as it comes out of the faucet, giving you better-tasting and healthier hot water for your drinks and cooking purposes.
More features: spring piston handle assembly with auto-off lever
Last but not least, we have the Westbrass D271H-12. Westbrass makes some of the best instant hot water dispensers on the market and this model is definitely one of the company’s most impressive achievements so far. The Westbrass D271H-12 is made from top quality materials and designed with style in mind, coming complete with a very classy bronze faucet that can sit snugly above your sink and enhance the appeal of your kitchen.
The Westbrass D271H-12 also stands out for its assembly and ease of installation. It’s really easy to get this unit fitted and ready to go, and you shouldn’t need to waste any time on the installation or any money paying a professional to help out. It’s all very simple and straightforward, with the kit containing everything you need to get started.
Once you’ve got it all up and running, the Westbrass D271H-12 offers very impressive performance levels. It’s a relatively simple but highly effective instant hot water dispenser, with a wide temperature range from 145 to 190 degrees. It’s a shame that this unit can’t quite reach 200 degrees or beyond, but its temperatures are still more than sufficient for most situations. It also only comes with a 1-year warranty, but since this dispenser has been so well made and is so easy to use, you shouldn’t encounter any issues with it.
What makes it special?
Simple and effective design
Solid brass faucet
Quite a compact tank
Easy to assemble
What cons did we find?
Can't reach 200 degrees
Things to Consider
Now that you’ve seen our instant hot water dispenser reviews and know more about some of the best instant hot water dispenser models on the market, it’s time to take a closer look at what these devices really do and how to choose between them. Read on through our buying guide and FAQ section to learn all about what hot water dispensers do, what advantages they offer over kettles, and what factors you need to think about in order to find the perfect model.
What the instant hot water dispensers for?
First of all, before you invest in an instant hot water dispenser, it helps to know exactly what these products are used for and what kinds of benefits they can offer. As the name suggests, an instant hot water dispenser is able to provide instant hot water. Unlike a kettle, which takes time to heat water up, an instant dispenser can give you hot water in a matter of seconds at very high temperatures, even going above and beyond 200 degrees F.
Naturally, one of the most obvious uses of an instant hot water dispenser is for preparing hot drinks. Instead of having to wait around to prepare some coffee or tea, you can simply activate the dispenser and prepare your drinks immediately. This can save you a lot of time in day to day life, and there are many other amazing uses of an instant hot water dispenser too.
Families can get a lot of use out of an instant hot water dispenser for things like warming baby bottles, making Jello, or making hot chocolate. It can also be super effective for cleaning purposes, helping you to clean up greasy pans and plates in an instant or clean up containers before placing them in the recycling. Stubborn stains can vanish in an instant with some super-hot water and soap applied.
On top of all of this, an instant hot water dispenser also has many applications for cooking. You can use it to clean fruits and veggies while preparing dishes and desserts, or for making soup. You can also use it to get a head start on preparing noodles, pasta, and other dishes involving hot water. It can be great for boiling eggs, hydrating dried foods, thawing meat, warming up syrups and jams, melting butter, blanching vegetables, and much more besides.
Instant hot water dispensers vs kettles
A lot of people hesitate between getting an instant hot water dispenser and a kettle. It’s easy to understand why this is such a common comparison, as both devices perform similar functions. They’re both used to provide hot water for things like coffee, tea, and more, but when it comes to hot water dispensers vs kettles, there’s only one clear winner.
Instant hot water dispensers have a lot of advantages over classic kettles, beginning with the obvious fact that kettles need time to heat up the water, while instant hot water dispensers can offer super-hot water in a matter of seconds or even instantaneously. Some kettles need several minutes to heat just a single liter of water, but instant hot water dispensers can do the job in a fraction of the time.
This means that instant hot water dispensers are generally way more convenient and useful to have around the home than kettles. Whenever you feel like you want a cup of coffee, you can have it instantly with a hot water dispenser, saving you a lot of time. Plus, the speed and practicality of hot water dispensers makes them so useful in many other ways.
For example, as stated above, instant hot water dispensers are perfect for many uses like heating up noodles or pasta, melting some chocolate for pouring over a dessert, heating up a baby’s bottle, and more. To do these same things with a kettle would be very time consuming and frustrating.
In terms of energy usage, there really isn’t much difference between kettles and instant hot water dispensers. The exact results can vary depending on the model in question, but in general, they use roughly the same amount of energy to heat the same amount of water. However, a lot of water heated by kettles goes to waste, because you don’t usually use every single drop inside the kettle, and this helps hot water dispensers to be more efficient overall.
Features to consider while choosing an instant hot water dispenser
Before you decide to buy any instant hot water dispenser, you should think about a variety of factors. Be sure to read through an instant hot water dispenser review of your chosen model and consider a range of factors, including the tank capacity, the dimensions, the ease of installation, the warranty, and the temperature range of your chosen hot water dispenser.
These factors can all have an influence on how satisfying and useful the model actually turns out to be in practical use, and it’s important to think about which factors matter the most to you. Someone who likes to have protection for their purchases, for example, will favor a model with a long warranty, while someone living in a large household will probably favor a model with a big tank capacity and high number of cups per hour.
Tank capacity and number of cups per hour
One of the most important factors you should think about first of all when reading under sink instant hot water dispenser reviews or comparing different hot water dispenser models is the tank capacity and number of cups per hour. This basically tells you how much water the dispenser can store in the tank and dispense throughout the day.
The higher the tank capacity, the more hot water you and your family can enjoy from the instant hot water dispenser. It’s always wise to think about how many people are in your household and how often you have guests over in order to find a model that works for you.
If you tend to make lots and lots of hot drinks for friends and family, you’ll need to invest in a model with a high capacity and plenty of cups per hour, like the Westbrass D271H-12, for example. However, if you live in a smaller house or don’t tend to use too much hot water, a lower capacity may be more than enough for you.
All of the best instant hot water dispensers come with faucets, and you’ll need to think about various aspects of the faucet design when choosing the right instant hot water dispenser for you.
Some instant hot water dispensers come with faucets in various colors, metals, and finishes, like the solid brass plated faucet of the Westbrass HotMaster DT1F271-07, for example. Faucets can also be found in different sizes, like the chrome faucet of the InSinkErator H-CONTOUR-SS.
It’s important to think about the overall design and aesthetic style of your kitchen when trying to choose the right instant hot water dispenser for you. It’s always better to find a faucet that matches up with your kitchen’s style and doesn’t look out of place.
You should also think about the size and shape of the faucet in your instant hot water dispenser and be sure that it can fit perfectly above your sink without touching any cabinets or interfering with any other parts of your kitchen’s design.
The whole point of an instant hot water dispenser is to provide hot water instantly to the user, so the temperature range of each model can be a very important factor to think about. You see, not all instant hot water dispensers are able to reach the same temperatures. Some of them can get a lot hot than others, like the Ready Hot RH-200-F560-CH, which is able to go up to 200 degrees F.
The wider the temperature range, the better your instant hot water dispenser will be at helping you make lots of hot drinks and perform various other tasks around the home related to cooking, cleaning, and more. It’s always good to find a model that can hit very high temperatures, as super-hot water can be very helpful in so many situations.
If you can find an instant hot water dispenser with a broad temperature range, this gives you the most flexibility. You can turn the water down to a cooler setting for certain tasks, like heating a baby’s bottle, for example, and then crank it up to a higher temperature when you need to scrub some tough grease stains out of a pan or prepare some piping hot coffee to share with your friends. The wider the temperature range, the more versatile your dispenser will be.
Another big thing to consider when reading any best instant hot water dispenser review or shopping for your next hot water dispenser is the size of the water tank. Typically, a hot water dispenser will come in a kit with two main parts: the faucet and the tank. The faucet sits on top of the sink and dispenses the hot water out wherever you need it, while the tank is mounted under the sink and connected to plumbing and electrical connections to provide hot water.
Tanks for instant hot water dispensers can come in a range of shapes and sizes, and it’s so important to think about where you’re going to install the tank and check that it will fit just right in your chosen area.
It can be a real disaster if you take the time to invest in an instant hot water dispenser and then realize you don’t actually have enough space for the tank to be properly installed.
Some of the best instant hot water dispensers out there have quite compact tanks that are still able to offer impressive capacities and cups per hour ratings. The InSinkErator H-CONTOUR-SS, for example, has quite a compact and convenient tank that is really easy to install and still capable of storing 2/3 gallons of water and offering up to 60 cups per hour of hot water for you, whenever you need it.
One more factor you definitely can’t ignore when shopping for any instant hot water dispensers is the price. It’s always important to think about how much you want to spend when buying pretty much anything in life and setting out a budget that works for you. Interestingly, the prices of instant hot water dispensers can vary quite a lot, and you don’t always have to pay big bucks to get a great quality model.
There are some very expensive models of instant hot water dispensers out there, including some units that go above the $500 mark. However, it’s also possible to find a lot of great hot water dispensers for less than $200, like the Waste King H711-U-SN and the InSinkErator H-CONTOUR-SS, for instance.
Be sure to consider the manufacturer warranty of your chosen model whenever you shop for an instant hot water dispenser too. This can really help to provide a lot of peace of mind for you when using your instant hot water dispenser each day, as well as keeping you covered in terms of repair and replacement costs if ever your faucet or tank breaks down and needs to be fixed.
When it comes to instant hot water dispensers, some manufacturers are much more generous than others in terms of the warranties they provide. There are many models that only come with a single year of coverage, which isn’t a lot, but other units, like the Ready Hot RH-200-F560-CH, for example, come with three whole years of protection from the manufacturer, ensuring that they’ll be the ones to handle repairs and replacements, should you need them.
Last but not least, one final thing you should consider when shopping for instant hot water dispensers is the presence of any additional features or extras included with each kit. These little bonus features can actually make a big difference to the overall functionality and efficiency of your chosen dispenser, making it more fun and enjoyable, as well as more useful.
The Westbrass HotMaster DT1F271-07, for example, comes with digital functionality, six preset temperature settings, and even a filter to clean and purify the water as it is dispensed via the faucet. The InSinkErator H-CONTOUR-SS, meanwhile, offers tool-free connections on the tank for super speedy and easy installation, as well as truly instant hot water dispensing.
How to install your instant hot water dispenser system
Once you decide to buy the best rated instant hot water dispenser for you, you need to think about how exactly you’re going to install it. The exact specifications and steps to follow will vary from model to model, and many of the best hot water dispenser manufacturers will always be sure to include instruction manuals in the box that show you exactly what to do. In general, you should follow these simple steps to get your instant hot water dispenser up and running with ease:
Turn Off The Supply – The first thing to do when installing your hot water dispenser is to turn off the water supply. This ensures that you won’t have to worry about any potential leaks or other issues occurring due to the water running during the installation phase.
Unpack Everything – Next, be sure to unpack all the different components of your instant hot water dispenser kit from the box. Check that everything is there and read through the instructions provided to get an idea of how to install your unit and how it should work when it’s all set up.
Mount The Faucet – The next step of hot water dispenser installation is to install the faucet itself. This is a key part of the procedure and needs to be done with care. Be sure that the seal is properly placed on the dispenser and that it fully surrounds the mounting hole to avoid any kind of leak when the faucet is turned on. Next, tighten the faucet in place from underneath.
Mount The Tank – Once the faucet is all set up, you’ll need to focus on mounting the hot water tank, which is one of the most important parts of your instant hot water dispenser and responsible for heating the water. Be sure to install the tank in a vertical position and keep it level. Place it somewhere where the plumbing and electrical connections can easily be made to provide the tank with water and power.
Finish Off – To finish off the installation process, you’ll need to connect the plumbing and tubes to your tank, as well as fitting a filter system, if you have one. You shouldn’t plug the unit into an electrical outlet until the tank has been filled up with water to test that all the connections are watertight and nothing will leak. Then you can finally plug everything in and switch it on.
This really depends on the model you buy. There are many different hot water dispensers out there and the noise levels of each model can vary quite a lot. Just like with a regular faucet, instant hot water dispensers can make a little noise. Some models produce a steady hum or whirring sound while in use. However, the models chosen on our list are all highly rated for their mostly silent operation, and even the noisier models aren’t really too noticeable in terms of the amount of sound they produce. In general, when you buy a good quality instant hot water dispenser, you shouldn’t have to worry too much about it being very noisy.
Again, this depends on the model you buy, but in general, many of the best rated instant hot water dispensers can quite easily be attached to a water filter system. Some models, like the Westbrass HotMaster DT1F271-07, for example, even come with filters in the box in order to clean up the water as it passes through the system and out of the faucet. It’s always a wise idea to hook your instant hot water dispenser up to a filter system if you want to drink the cleanest and purest water possible, as filters work to remove impurities and improve the flavor and odor of water in your home.
Yes, it is possible to install an instant hot water dispenser like the Waste King H711-U-SN in your RV, but there are a few things for you to be aware of before going down this road. First of all, you need to remember that RV kitchens tend to be a little on the small side, so be sure to check out the dimensions of your chosen instant hot water dispenser and be sure that it will fit in your RV. You should also be sure to have a sufficient power supply to support the dispenser. After considering all of these things and choosing a suitable model, you can get a lot of benefits out of having an instant hot water dispenser in your motorhome.
Overall, our top rated instant hot water dispenser is the InSinkErator H-CONTOUR-SS. With its stylish and compact design and easy installation, this instant hot water dispenser truly lives up to the name, providing absolutely instantaneous hot water for all your cooking, cleaning, and hot beverage needs.
The next best instant hot water dispenser on our list is the Ready Hot RH-200-F560-CH. It comes with different faucet options, a wide temperature range, very impressive functionality, and a bunch of useful extra features to provide hot water for the whole household, as and when you need it.
Finally, our third best rated instant hot water dispenser is the Waste King H711-U-SN. This model stands out for its affordable price, high cups per hour rate, stylish satin faucet, and unique safety features that keep the tank and faucet totally safe against high temperatures.