One reason people want to buy a hot water dispenser is that it gives them a cupful of instant hot water on demand.
Push a button, and you can fill a cup with boiling water in a few seconds.
However, not every hot water dispenser is made equal, and finding what will exactly work for you requires an understanding of how instant hot water dispensers work.
Anyone who finds kettles bothersome, i.e., you need to fill, carry, boil and then pour, should buy a hot water dispenser. Not only are dispensers faster, but also the fact that you don’t need to wait around means the average tea drinker can save a boatload of time.
As mentioned earlier, not all hot water dispensers are equal; for instance, while some consistently deliver the right amount of water and at the right temperature, others don’t dispense the same amount consistently. Sometimes the water dispenser is a little cumbersome to use.
Before we give you our top picks of the best hot water dispenser to buy, we’ll go into how they work. After all, one of our goals is to help you make an informed decision. Let’s jump right into it!
How Much Can You Expect to Shell Out for an Instant Hot water Dispenser?
Hot water dispensers vary in prices. Starting from around $60 with some costing over $200 with many of the same or slightly different features.
The significant difference between the more expensive models and the cheaper ones is the amount of granular control that the expensive models offer. For instance, more expensive instant hot water dispensers allow you to set how much water is dispensed instead of settling for the standard single cup. Other advanced features include the addition of a water filter.
In our experience, price isn’t always an indicator of quality. So, you don’t have to spend more to get a decent model in many cases. In fact, the ones we’ve listed towards the end of this article tend to offer the best value for money.
Is a Hot Water Dispenser Better Compared to a Kettle?
Many people compare instant hot water dispensers to kettles, both of which take very different approaches to heating water. However, since they both do the same thing, a comparison is inevitable. Kettles allow you to heat up more than just a cup of water, but some kettles allow you to boil exactly one cup too. You can also measure a cup of water out individually, which can’t be done with an instant hot water dispenser. Most low-priced dispensers have a preset for a single mug, which may fall short of the large-sized coffee mug you might be used to.
The best hot water dispenser has variable water settings, which allow you to change the amount of water dispensed. However, as mentioned earlier, this feature is usually on midrange to higher-end models. Generally, they will dispense around 150ml for a small mug and 350ml for a large mug.
Instant hot water dispensers are also able to dispense a cup or two of hot water within seconds. A kettle, on the other hand, takes time. However, a dispenser may not be the best choice for anyone who wants to make multiple cups of tea or instant coffee every few minutes like in a commercial establishment. So, if you need batches of boiling water at a time without instant delivery, the average kitchen kettle should do the trick.
Which Hot Water Dispenser To Buy?
We independently tested many different instant hot water dispensers to determine which ones offer the best value for money. Below is a brief review of what we consider are currently the best products currently available.
The InSinkErator is one of the few instant hot water dispensers in our lineup that can produce up to 60 cups of hot water an hour.
Water temperatures can reach a whopping 200 degrees, which isn’t exactly boiling point technically but near it. However, if you want to vary the heat, i.e., lower it slightly, it can be done via the multi-selection switch on the InSinkErator, which allows you to choose anywhere from 210 degrees at the top end to 160 degrees on the lowest setting.
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The satin nickel finish on the InSinkErator ensures that it can fit right in with just about any type of kitchen interior. The stainless steel hot water tank is made from durable materials. The plastic tubing used in the system is also BPA free. The InSinkErator dispenser’s flow rate is a pretty good at 0.75 gallons a minute. However, it could be faster, in our opinion.
The InSinkErator also has a couple of safety features built into it. For instance, it can help prevent your kids from accidentally turning on the faucet and burning their hands with boiling water. The self-closing hot valve will instantly close, preventing the flow of hot water. The way to operate the InSinkErator dispenser is to turn and hold the handle for a second. Sure, it isn’t very pleasant initially, but it is a safety feature that people with kids will appreciate. Keep in mind that the water coming out of the unit is scalding. Even at its lowest setting, it can easily burn your skin, so it’s essential to follow the manufacturer’s instructions.
Installing the InSinkErator H-HOT150SN-SS Instant Hot Water Dispenser
One of the selling points of the InSinkErator hot water dispenser is its DIY installation. Users can install the InSinkErator without the need for tools or additional plumbing. All you need is to attach the tool-free connection from the unit to the required sources. Furthermore, this particular InSinkErator model comes equipped with dry-start protection, which prevents the unit from firing up if it does not have any water.
The manufacturer recommends putting the faucet in a 1-1/4″ to 1-1/2″ hole. The faucet is 2 inches from the center of the hole in the wall, which allows the handle to make a full quarter turn. The counter also shouldn’t be more than 2 inches thick.
You also need access to an AC (alternating current) outlet, which isn’t switched. You don’t need to buy an additional power cord because one comes with the system. However, a dedicated control valve is needed with a T-fitting and compression. If you’re not at home for a long time (multiple days), the dispenser needs to be unplugged.
• The InSinkErator is an excellent quality instant water dispenser, which can deliver up to 60 cups of boiling hot water an hour.
• The thermostat is easy to set.
• You don’t need to hire a professional to install the dispenser, and there is no need for additional plumbing in most cases.
• The stainless steel tank and the BPA free plastic tubing makes it perfectly safe to use.
• The only con is its safety feature, which requires turning and holding the handle for a few seconds. Some people may find it irritating.
The Anaheim AH-1300 is one of the best instant hot water dispensers in our lineup, with the capability of delivering up to 60 cups of hot water an hour with its impressive 1300 watts of power.
The high wattage means that even after the unit has been emptied, the tankless time it would take to get another few cups of instant hot water is shorter than any other unit in our lineup.
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The Anaheim AH-1300 is one of the best instant hot water dispensers in our lineup, with the capability of delivering up to 60 cups of hot water an hour with its impressive 1300 watts of power. The high wattage means that even after the unit has been emptied, the tankless time it would take to get another few cups of instant hot water is shorter than any other unit in our lineup.
We also like that the insulated stainless steel keeps the boiling water hot, minimizing the use of electricity. The low-frequency heating operation also means a lot less build-up to clean, making it easier to maintain.
The unit also has an automatic switch, which allows you to adjust the water’s temperature easily. The tank can easily be turned off and the temperature set anywhere from low to high. The tank also has a self-resetting fuse, which will turn off the unit if the water or unit is too hot.
According to the manufacturer, the minimum life expectancy of the Anaheim AH-1300 is around five years. The good news is that the tank is easy to replace and costs only a few dollars, making it viable for long-term use. However, we will advise that you change the rubber hoses and use silicon ones instead. That’s because these rubber ones are known to disintegrate after a year or two of use. If you notice a leak, don’t replace the unit. Instead replace one of the nuts or a pipe inside, which by the way, is easily repaired.
The Anaheim AH-1300 also allows you to get both hot and purified water at the same time. However, you will need to attach a water filter to the device to purify the water. That said, please keep in mind that the instant hot water tank is only intended to be used for drinks. The boiling water can’t be used to take a shower in your RV, for instance.
Installing the Anaheim AH-1300
Installing the Anaheim AH-1300 requires access to a dedicated water source. So, you’ll need the required plumbing, which means hiring a plumber to mount it. You might also need to buy a separate hot water faucet. Which is then hooked up to the home’s water supply. But if you use this as a replacement for an existing one, then swapping the Anaheim AH-1300 in is easy.
Hooking the instant hot water tank up to a portable sink will require access to water supply, electricity, and a special faucet. However, it can’t be attached to an outdoor hose since it requires power.
• 1300 watts of power is more than enough for most people. Especially since it takes just a few seconds for it to deliver hot water even after the tank is empty.
• This system is said to have a long service life, lasting for around 5 years, if not more.
• The insulated stainless steel tank helps to keep water hot.
• The Anaheim AH-1300 can easily deliver 60 cups of hot water an hour.
• The Anaheim AH-1300 only comes with one year warranty.
• A plumber will need to install the tank for most users.
The InSinkErator H-WaveC-SS is an instant hot water dispenser that comes bundled with a steel tank, capable of dispensing near-boiling water.
It isn’t hard to tell that the InSinkErator is a well-built water dispenser made mostly of metal, with chrome finishing on its hot water faucet.
At least for us, the only oddity of this InSinkErator model is that the control lever moves in reverse, i.e., backward, and it takes around 1.25 inches of movement from full on to the complete off position. The spout also swivels by around 30 degrees in both directions, but you don’t have to worry about breaking it because of the stops in place.
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The InSinkErator’s intuitive switch enables users to easily adjust the temperature setting anywhere from 160 degrees on the low end to 210 degrees on its highest setting. However, it comes out of the box set at 200 degrees. If you find the preset too hot, you can adjust it out of the box. That said, the InSinkErator shouldn’t be used to wash your hands because even at its lowest setting, the water is too hot. That said, it is best suited for beverages like instant coffee and tea.
You can also connect the InSinkErator to a tankless RO system, but the flow rate will be low as a result. Furthermore, you might notice that the water has a distinct metallic taste, which most users will not like. That said, the InSinkErator does not include a water purifier since this model is only designed to heat water.
In terms of safety features, the InSinkErator comes with a hot lever system, hooked up to a self-closing valve, which will shut off automatically after a while.
Installing the InSinkErator H-WaveC-SS
One of the upsides to owning the InSinkErator H-WaveC-SS is that anyone with no additional plumbing can mount it. You can easily install it (InSinkErator) on the edge of your kitchen’s sink, or anywhere else for that matter. The InSinkErator’s tool-free tank connections are easy enough, and most people will not need the user’s manual. However, you will need to drill a hole into your kitchen counter if there isn’t already one, measuring around 1.25 inches.
If you plan on mounting the InSinkErator H-WaveC-SS on the counter, it shouldn’t be thicker than 3 inches. People with thicker counters will require additional extensions, a T-fitting, and dedicated control valve. The InSinkErator instant hot water dispenser will also need to be installed near an AC outlet.
• The switch on the InSinkErator is easy to use, making adjusting the temperature a one-touch affair.
• The self-closing valve automatically shuts off, which is an excellent safety feature.
• This InSinkErator H-WaveC-SS can be installed by anyone.
• The InSinkErator comes with a 3-year warranty.
• The InSinkErator H-WaveC-SS can be noisy, especially when in the process of heating water.
The Ready Hot water dispenser RH-100-F560-BN is one of the best instant hot water dispensers that provide users with hot water near instantly.
The instant hot water feature ensures that users save time with instant delivery via the faucet in a comparatively budget-friendly device.
However, compared to others on the market, the Ready Hot water dispenser RH-100-F560-BN has a significantly smaller storage capacity. The tank can dispense up to just 40 cups worth of hot water an hour, which is 20 cups less than competing products.
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Furthermore, the max temperature setting is 190 degrees, whereas the average across other devices is 200 degrees. Apart from these compromises, everything else is pretty up to snuff.
The instant hot water dispenser is equipped with an automated tank with a self-resetting thermal fuse. The fuse prevents the tank from potentially burning out in the case of a sudden dry start. Users can also choose the dual hot faucet or the dual cold and hot faucet. Buyers can also choose between Brushed Nickel or Chrome faucets. The stainless steel inlet and outlet tubes feel durable and premium.
According to the manufacturer, the Ready Hot water dispenser RH-100-F560-BN uses comparatively less energy, which means users will save money using it. Also, there is no need to buy a separate power cord when installed with the device. Based on what we’ve seen, the device’s flow rate is much higher compared to competing units. Which means that it can fill your cup sooner than others.
Installing the Ready Hot Water Dispenser RH-100-F560-BN
The hot water dispenser is meant to be installed under the sink. It has to be connected to the home’s water supply system. However, there is no need to install a pump as the existing pressure from the supply will suffice.
After the unit is mounted, the temperature can be adjusted to check if it’s hot enough. If the device reaches its maximum heat, a red light will turn on. According to the manufacturer, the unit does not require additional maintenance after it has been installed.
• The self-resetting thermal fuse helps by protecting the unit from burning out in the event of a dry start.
• A light indicates that the unit has reached its maximum temperature and that the water is hot enough for use.
• Very high flow rate.
• No maintenance is required.
• Faucets don’t automatically turn on since each one needs to be pushed down before the hot water starts running. The manufacturer has made it so that the unit is kid-friendly.
The Westbrass D27H-12 uses what’s called QHt-1 technology, which delivers piping hot water near instantly.
Unlike competing products that rely solely on manual operation, this one also has features like an auto-off lever.
The lever automatically turns off the hot water, which has multiple benefits, including energy savings, since it prevents hot water from being wasted and ensures the operator’s safety.
The Westbrass D27H-12 comes with a 9-inch faucet and a gooseneck spout, making it very easy to prevent hot water from spilling out of the sink.
Speaking of hot water, users can modify the temperature by setting it to anywhere from 140 degrees on the low end to 190 degrees on the high end.
The only problem is that the device does not have a screen to tell you what temperature it is currently set at, so you’ll need to experiment with it a bit to find what works.
The unit also allows you to install a filter between the water supply and tank. However, you’ll need to follow the manufacturer’s instructions on how to attach a filter to the water supply and then to the unit. Also, you will need to purchase the filter separately as it does not come with the unit.
Installing the The Westbrass D27H-12
The Westbrass D27H-12 is surprisingly easy to install within a few minutes. All users need to do is follow the manufacturer’s steps on installing the faucet. The Westbrass D27H-12 comes with color-coded copper lines, which makes it easier to follow the steps.
The manufacturer asks that users refrain from using plumber’s putty to mount the Westbrass D27H-12. Instead use a silicone seal since it lasts longer and is more durable.
• The special arched spout design prevents water from spilling over and onto the sink or users.
• The dispenser’s handle automatically turns off to ensure the safety of the unit and save energy.
• A filter is relatively easy to install, and the manufacturer provides instructions on the best way to install one yourself.
• Installing the Westbrass D27H-12 is easy, so there is no need to hire a plumber for it.
• The unit tends to be on the noisy side when heating water.
• Some people have reported the faucet leaking at certain times of the day, which is normal. It’s the unit’s way of releasing pressure built up from all the hot water in the tank.
One of the things that is instantly apparent about this hot water dispenser is its elegantly designed silver faucet and the accompanying sleekly designed tank.
The compact design means that the instant hot water dispenser can easily be installed under the kitchen sink without worrying about freeing up more space.
The Waste King H711-U-SN is a significantly powerful 1300-watt hot water heater with the capability of heating water up near instantly. It can produce up to 100 cups of water if needed per hour, 40 cups higher than the standard 60 cups of other water heaters in this class.
The other major advantage of the Waste King H711-U-SN is the tank’s holding capacity. It can easily store up to 5/8 gallons of water, which isn’t under pressure. Its stainless steel structure is insulated, which allows the unit to reach the preset temperature faster. Speaking of temperatures, users can set it to anywhere from 140 to 190 degrees.
Users who are worried about the expanding bladder of the unit shouldn’t worry. That’s because it comes equipped with a feature that allows you to decrease and increase the heat as needed. However, the water does drip from the faucet on occasion since it uses an open vent system, but it isn’t all that irritating since the dripping isn’t consistent. That said, another way to deal with the dripping is to lower the temperature. Which is easily done by turning the knob located under the sink on the tank’s face.
The dispenser does not have a filter included. However, there is the option of mounting a strainer in the supply line. The strainer does not filter the water but instead catches debris that would otherwise make it to the water in the unit. That said, you can still install a filter in between the supply line and the unit. That way, the water is filtered before reaching it.
Installing the Waste King H711-U-SN
The Waste King H711-U-SN needs to be installed and mounted vertically. The faucet can be installed in the spray hose opening within the sink. Or you can drill a separate 1 ¼ inch diameter hole for it.
To prevent the water lines from being twisted, the company provides you with quick connect fittings. Which makes installing the unit easy for most ordinary people. Plus, there is no need for a separate power cord as the unit comes with one pre-installed. However, you might need to buy some parts to install the unit.
• The hot water dispenser is very easy to mount under the sink, thanks to its compact design.
• The device is powerful enough, capable of delivering up to 100 cups of hot water.
• A safety feature allows you to control the heat so that the bladder does not over-expand.
• The quick-connect fittings and the overall improved connections that come out of the unit ensures that the water lines aren’t twisted.
• If you have no experience installing instant hot water dispensers, installing the Waste King H711-U-SN can appear challenging.
• The instructions that accompany the Waste King H711-U-SN are difficult to follow for most people.
The Franke HT-300 comes with a 0.5-gallon stainless steel hot water tank which looks and feels premium. However, the unit operates at 780 watts, making it capable of providing up to 60 cups of water an hour.
Many people who use the Franke HT-300 instant hot water dispenser complain of the tank leaking. However, it isn’t the tank that’s leaking but a broken supply nut. The part is easily replaced.
Though the best way to avoid the problem is to ensure that the faucet is secured in place. In other words, the faucet shouldn’t move when in use.
The other thing you need to keep in mind is that while the Franke HT-300 is very easy to use, there is no filter feature. If you want purified water, then a filter will need to be purchased separately, connected to the dispenser and your water supply source. Furthermore, most people will find that mounting the tank under the sink works best for this model.
Installing the Franke HT-300 Tank
The Franke HT-300 comes with a flexible hose that can be easily connected to the faucet. Installing the tank takes around 30 minutes. Taking it apart to replace broken parts only requires a screwdriver, making it very easy to maintain.
The other perk of the Franke HT-300 is that there is no need to buy tools to install the unit. That’s because the manufacturer includes everything you’d need with it. So, you save money on installation since there is no need to hire a plumber, and there is no need to have a tool kit.
In our experience, most people will not need to buy additional parts if they are replacing an existing instant hot water tank. However, if it’s installed from scratch, then bits and pieces like a filter housing, faucet, hoses, etc., may need to be purchased. The three-prong power supply that comes with the unit is more than adequate and pretty decent length for most users.
• Buyers get just about everything they will need to install the Franke HT-300 instant hot water dispenser, which makes replacing an existing unit easier.
• This tank can be DIY installed, which will save you time and money.
• The included power cord is easy to use and durable.
• The Franke HT-300 is made entirely of stainless steel, so we suspect it can last for years if maintained properly.
• You might notice some hot water leaking which is annoying but repairable. We consider this a manufacturing defect that can otherwise be easily rectified by replacing the hot water supply nut.
Conclusions On The Best Hot Water Dispenser
As you can see, there is quite a bit more to buying the best instant hot water dispenser than just price.
Sure, price matters for many people, but so should the unit’s build quality, its ability to deliver hot water instantly, reliability of the unit, and, most of all, the potential to save you money during installation.
Our advice is always to buy an instant water heater made from stainless steel or some other durable material perfectly suited for storing hot water.
You’ll also want one that’s energy-efficient and easy to install. Fortunately, as you can probably tell from our lineup, there are quite a few to choose from, and you can’t go wrong with any of them, in our opinion.