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Heating water is almost a necessity. Tanks? Not so much. Get the best tankless water heater for your home with the help of this guide.
Rinnai RL75iN Natural Gas Tankless Water Heater
High output capacity
Energy efficient
Space-saving design
Reduced fumes and emissions
Quality warranty and customer service
Advanced features and controls
Can be a little expensive
Stiebel Eltron Tempra Plus Tankless Electric Water Heater
High output capacity
Extremely energy efficient
Compact size with space-saving design
Flow control and temperature regulation
Installation + product can get costly
Warranty only covers parts
Not suitable for smaller homes
Takagi T-KJr2-IN-NG Indoor Tankless Water Heater, Natural Gas
Energy efficient
Great value for money
Packed with features
Compact size
Comes with safety controls
Needs outdoor venting
Installation and the product can get costly
Not suitable for larger households
Writer
Rinnai RUC98iN Ultra Series Natural Gas Tankless Water Heater
High flow-rate, energy efficient, multiple venting options.
High output capacity
Energy efficient
Space-saving design
Multiple venting options
Reduced fumes and emissions
Quality warranty and customer service
Expensive
Can be tricky to install
Relatively heavier
SioGreen IR8000 Infrared Electric Hot Tankless Water Heater
Maintenance-free, energy efficient.
Coil-less – prevents corrosion and buildup
Long operational life
Saves money in the long run
Energy efficient
Compact size
No venting required
Can be difficult to install
Doesn’t work well in colder climates (below 50F)
Lightweight and compact
Highly energy efficient (99.8%)
Digital temperature control with one-degree increments
Great value for money
Lifetime warranty
Only useful as a POU unit in colder climates (>67F)
Not suitable for larger households
Fluctuating water temperature
SioGreen IR260 POU Infrared Electric Hot Tankless Water Heater
Maintenance-free, cost-effective.
Coil-less – prevents corrosion and buildup
Long operational life
Great value for money
Energy efficient
Digital temperature control
Compact size
Easy to install
Incoming water temperature should be at least 72F for a 1.5 GPM flow rate
Not intended to be used with showers
Doesn’t produce enough hot water for more than single faucet use
Digital temperature control with one-degree increments
Comparatively small-sized
Detachable parts; easy to remove and replace
Lifetime warranty
Bad customer reviews on operational longevity
Doesn’t deliver as much hot water as expected
Slow startup than most other models
Installation + product can get costly
10 Efficient Tankless Water Heater Reviews 2024
Has a higher technical education. More than 10 years working as a manager in a household appliance store. He is interested in technology from an early age.
Maynard S. Mitchell
Tankless water heaters are also known as on-demand or instantaneous water heaters, and the best tankless water heater is great for reducing costs and energy losses.
Tankless water heaters only provide hot water when it’s required. When a hot water tap is opened, cold water travels to the tankless unit through a pipe. There, it’s heated by a gas burner or an electric element.
The result: A constant supply of hot water!
Tankless water heaters are usually more expensive than traditional storage tank water heaters, but they definitely help save costs in the long run.
These tankless models are also much more compact in size and design than the traditional tank water heaters. They can be installed pretty much anywhere, even outside on a wall. They also have the capability to provide at least one or two gallons of hot water per minute.
Here, we’ve reviewed 10 excellent tankless water heaters, so you can make the right purchase decision.
We personally tested 32 of the best tank water heaters on the market to bring you this list of our ten favorite models. Over 46 hours of in-depth research and conversations with experts and customers later, here we are with the top tankless water heater options for your home this year.
This innovative water heater from Rinnai uses advanced technology to bring you steaming, hot water.
This unit is able to instantly heat water because of the heating elements installed within its piping system. Let’s break down its features and get a better look at why this heater makes it to our top ten list:
First of all, we found this water heater to be a powerful, whole house unit. Our testing proved it to have a massive capacity. In fact, it can put out up to 7.5 GPM of hot water at a time. This makes it perfect for large-sized residential, or even commercial, applications.
Simply put, it’s enough to run 3 to 4 full-flow showers simultaneously. That’s a tough standard for other tankless water heaters to top.
On top of that, this Rinnai model is not lacking in the energy efficiency department either. With an energy factor of 0.82, this device showed us it can save its owners a reasonable amount on their utility bills. It even comes with an Energy Star certificate for your assurance!
Environmentally Friendly: This unit is also SCAQMD-certified for reduced fumes and emissions of carbon dioxide.
You know what else we thought made this tankless water heat great? The amazing technology and advanced controls!
The Rinnai RL75iN comes with a digital controller that shows the user if there are any issues the unit is facing. It makes troubleshooting a breeze and indicates error codes (you can check the manual for what they stand for, their importance, and how to solve them). We loved the simplicity of this feature.
You can also control the water temperature and set it as hot as you like. For residential applications, you can choose from between the range of 98 to 140F. For commercial applications, the temperature can range from 98 to 160F.
Moreover, it also comes with a leak detector, which stops the water supply if a water leak is identified. Another cool feature is the temperature lock. This locks the temperature setting to prevent any unauthorized adjustments and changes.
Since scale deposits can shorten the life of a water heater, and lead to damage or breakage, we were especially impressed with the scale deposit detector this unit is equipped with.
And that’s not all that impressed us. The Rinnai RL75iN’s space-saving and convenient design had us swooning. It’s not very large sized, and its sleek, silver design won’t look like an eyesore in any part of your house.
This unit comes with a 10-year warranty for the heat exchanges, a 5-year warranty on the parts, and a 1-year warranty for residential installation. Keep in mind the warranty is only valid if you get the unit installed by an authorized Rinnai service provider.
The only negative part about this excellent water heater is its price. But if you look at the long-term benefits, it can really be worth it. Especially if you want to invest in a whole house water heating system for a large residential or commercial place.
Plus, with all the advanced features and controls, this unit can run perfectly for 20 years if maintained properly. Maintenance isn’t much of an issue either because this intelligent device always informs you whenever there is a problem!
Features:
High output capacity
Energy efficient
Space-saving design
Reduced fumes and emissions
Quality warranty and customer service
Advanced features and controls
Can be a little expensive
This German-engineered water heater is one of the best electric models out there for larger families, houses, condos, and even smaller commercial areas. It’s designed to work great in both warmer and colder climates.
First, it’s a total powerhouse. In fact, it slightly improves over the Rinnai RL75iN from above. With a powerful capacity to put out up to 8 GPM of water, this water heater can easily provide hot water to four showers at the same time.
Aside from a high flow-rate, it’s self-ventilating and comes in a compact size designed to save space. This means you can pretty much fit this water heater anywhere in your house without taking away from the aesthetics of your house.
Another great thing about this incredibly powerful model is it comes with self-modulating technology, which adjusts the power output according to any changes or fluctuations in the incoming water temperature.
We know everyone loves to save on their electric bills and the Stiebel Eltron Tempra Plus makes it possible. We discovered it has a super high energy efficiency of 99.5%, so you are sure to save on your energy expenses. This is great if you want to invest in a heavy-duty water heater for your house, but don’t want to increase your energy costs in the long run.
This Tempra Plus model also features an interesting Advanced Flow Control technology. This little perk lets the heater adjust its flow-rate to keep the output temperature the same as you set it. This means no matter how many water outlets you use, the water temperature will stay the same. This water heater will simply adjust the flow-rate accordingly.
The handy digital temperature display on this product is also a great feature to have. You can adjust the water temperature to any desired level between 86 and 140F.
This German product also comes with a thermostatic temperature control feature, which regulates the temperature to prevent any fluctuations during your usage. This basically means you’ll never have to worry about streams of cold water in between your hot showers anymore. That certainly one of the reasons we ranked this model so high.
Now, we aren’t saying this tankless water heater isn’t great. But like every other product out there, it comes with a few potential drawbacks you should at least be aware of before you start spending.
This water heater isn’t cheap. But, considering its massive capacity, the price seems fair to us. Plus, it saves your electricity costs in the long run, which really makes it a cost-effective option. However, getting it installed by a professional might increase your costs significantly. You might be tempted to try a DIY install, but that would just waste this product’s warranty.
Speaking of warranties, this Tempra Plus model comes with a 3-year warranty, but only on its parts. This is a little unfortunate because some users have reported their heater broke down after several months and the warranty didn’t apply to the whole unit.
The point is, be careful before you make your purchase decision. Nevertheless, this heater mostly has great customer feedback and is designed to work perfectly in colder areas, as well as in warmer climates. If you want to invest in an efficient electric heater suitable for a large residence, this is a solid option.
Features:
High output capacity
Extremely energy efficient
Compact size with space-saving design
Flow control and temperature regulation
Installation + product can get costly
Warranty only covers parts
Not suitable for smaller homes
This Rheem model is definitely one of our favorites.
If you have a large household, a consistent supply of hot water in cold weather can be a big problem. But if you’re willing to invest in a water heater guaranteed to put an end to all your worries, this is the one.
This high quality, powerful indoor water heater delivered an impressive flow rate of up to 9.5 GPM. That’s enough to instantaneously run two or three full-flow showers and a kitchen full of appliances.
Apart from its massive capacity, this product comes stuffed with tons of other features.
For starters, it comes with a stainless steel heat exchanger and uses condensing technology to heat water. This makes it extremely energy efficient. In fact, it has a certified energy factor of 0.94, which means you get to save a huge amount on your monthly bills. It also comes with intelligent electronic controls that further increase its energy efficiency.
Unlike other heaters powered by natural gas, this Rheem model uses an innovative venting system (low-NOx) that reduces fumes and emissions. It can pretty much be fitted anywhere inside or outside the house. It isn’t very heavy or large-sized either, considering its powerful output capacity, which makes it convenient to fit indoors.
Another great thing about this heater is you can fit several units together using special cables for additional use, such as for serving a larger house or even a commercial area.
That’s right. This water heater features more techy features. It comes with a digital display that shows temperature settings and maintenance codes, and a built-in self-diagnostic system for convenient troubleshooting. It also comes with a remote control, so you can easily change its settings from a distance. We loved the convenience of this.
It also comes with freeze protection and supports altitudes of up to 8,400 foot above sea level, which is why we recommend it for use in higher elevations and colder areas.
This natural gas heater also has safety features we couldn’t overlook. You don’t have to worry about it being a hazard, especially when you’re installing it indoors.
It features a hot-start system that prevents fluctuation water temperature during on-and-off operations and also comes with a patented Overheat Film Wrap technology that protects against problems with the heat exchanger.
Unfortunately, all good things come at a price. And this heater literally comes with a pretty steep price tag. That’s the only downside of it, along with the company’s reputation for offering terrible customer service. But since it reduces maintenance and energy costs in the long run, it’s a really good investment for people with larger families and a constant need for hot water.
Features:
High output capacity
Energy efficient
Packed with features and safety controls
Reduced fumes and emissions
Easy installation
Expensive
More units needed for commercial use
Bad customer service
First of all, this indoor natural gas water heater offers GREAT value for money. It’s much more affordable than its competitors and comes packed with advanced features. It provides a consistent flow rate of up to 6.6 GPM--perfect for any small-sized family home.
To start off, this model is the smallest one from Takagi’s line up.
It has a pretty convenient size for the capacity it offers, which makes it a great buy. You can fit it anywhere in the house because of its compact dimensions. It also weighs less than 30 lbs. This makes it a relatively lightweight option compared to other models.
Secondly, it comes with an Energy Star certificate that guarantees efficient use of energy and water. If you look at energy factors, this model boasts a high energy factor of 0.83. This means it produces a lot of hot more compared to the energy used.
This gas-powered water heater offers a consistent flow rate of up to 6.6 GPM. In our testing, it easily produced hot water to multiple water outlets at the same time.
This Takagi model also comes packed with a lot of different features that sparked our interest.
One of them is the use of thermistors that constantly monitor and regulate the water temperature. When we tried this unit out, we impressed at how well this feature worked. It greatly reduced the problem of fluctuating water temperatures, regardless of the outside temperature.
We enjoyed the remote control that shipped with the water heater because it made for simple adjusting of the water temperature to the desired level. The remote also as has advanced switches for adjusting the performance for different altitudes. The maximum altitude allowed is 6000-foot and can be adjusted using the DIP switches inside the heater.
More features of this indoor model we thought were worth mentioning include an AFR (air-fuel ratio) sensor for keeping efficiency in check and tons of safety controls.
Gas-powered products are great, but they naturally require some safety mechanisms. This Takagi model offers a lot of them. It comes with frost protection and a flame sensor. Similar to other models we reviewed, it also automatically turns itself off in case it overheats. This makes it a really good option for families who are extra careful about using such appliances indoors.
Of course, because this is a gas-fed water heater, it requires outdoor venting.
This Takagi indoor gas water heater offers great value for the money. It’s energy efficient, comes packed with useful features, has a lot of safety controls, and offers a decent flow rate.
Plus, a lot of customers we spoke to were happy with its operational longevity, which means it’s likely to work perfectly fine for years to come.
If you have a small family, this is a great option for you. For larger households, though, not so much.
Features:
Energy efficient
Great value for money
Packed with features
Compact size
Comes with safety controls
Needs outdoor venting
Installation and the product can get costly
Not suitable for larger households
This powerful, heavy-duty tankless water heater from Rinnai is one of their most efficient models.
This unit operates on both natural gas and propane and is designed to be installed indoors. It offers a massive flow-rate of up to 9.8 GPM, which means endless water supply to a large residential or even a commercial place. You will never have to worry about running multiple water applications on this tankless model.
Note: This unit can activate at just 0.4 GPM too.
We think the Rinnai RUC98iN is more than just the average water heater since it offers tons of benefits. It is energy efficient, saves space, and has a low environmental footprint.
Aside from offering such a high flow-rate, this model also comes with special venting options. The concentric/twin pipe PVC venting made it easy to assemble and set up, although we do recommend getting a professional to do it for you.
That being said, Rinnai does also accept your DIY installation, on the condition that you get it inspected by a certified plumber.
But since it weighs a hefty 82 pounds, this water heater can be a little difficult to install on your own. The good thing is, it has a space-saving design and can be easily mounted on a wall with some help. This means its heavyweight won’t make much of a difference after you’ve installed it.
The Rinnai RUC98IN was also one of the quietest tankless water heaters we tried out. This is because it uses advanced low-NOx technology, which effectively reduces fumes and emissions. The low-NOx feature is also great for the environment and cuts down on both air and noise pollution.
Also, this model has an energy factor of 0.96, and it helps that it comes with an Energy Star certificate. It’s highly energy efficient and you’ll save tons on your utility bills. Plus, since it works on natural gas, you will automatically cut down on costs. That’s because gas-powered heaters are much more efficient than electric ones.
It offers a hot water temperature range of 98F-140F for residential installations. There is a commercial installation option that can be purchased separately which will boost temperature outputs to 185F. It also comes with an MC-91-2US remote controller, which lets you easily set the water temperature from a distance.
Moreover, this Rinnai water heater is incredibly durable and is known to last for a very long time. It also comes with two different types of warranties:
The only downside that we see in this powerhouse of a water heater is its price. It costs a lot, we won’t lie. But then again, you get an amazing water heater with guaranteed longevity, energy efficiency, and high-end technology to save you a lot of costs and frustration in the long run.
The bottom line is, if you are looking for a great, long-term option for your large-sized residential or commercial place, we definitely recommend you to consider investing in this Rinnai model.
Features:
High output capacity
Energy efficient
Space-saving design
Multiple venting options
Reduced fumes and emissions
Quality warranty and customer service
Expensive
Can be tricky to install
Relatively heavier
Here is another excellent option for medium to large sized families.
Depending on your area and the incoming water temperature, this tankless water heater can provide a high flow-rate of up to 4.5 GPM. That’s enough for two showers and a sink running all at the same time, but it isn’t as powerful as other options that made our list. Of course, for smaller families, this may not be a concern.
The cool thing about this unit is it uses the unique, Quartz infrared technology to heat water. This efficient system eliminates the need for coils and keeps water away from any kind of contact with metal. The best part is, you still get constant steaming, hot water always available for use.
Because of its coil-less technology, this SioGreen model prevents corrosion and unwanted buildup of limescale and calcium deposits. People who live in areas with well water or hard water often face this frustrating problem, but SioGreen completely eliminates it. This is especially useful because it automatically extends the life of this unit, and makes it pretty much maintenance-free for years to come!
Moreover, this innovative infrared technology in a tankless water heater also makes sure algae or bacteria doesn’t build up inside your unit.
Aside from its unique heating system, we really liked this model’s energy efficiency. It comes with self-modulating technology, and only heats up the water you use. This is great news for both your electricity bill and the environment as a whole because you’ll be saving both water and energy.
This tankless unit comes with adjustable temperature controls, so you can set the water to be as hot as you like. It also features a Safe Recovery mode, which isolates any issues in case a problem occurs, and continues to provide you with hot water without completely shutting off the system.
Because this unit is powered by electricity, it doesn’t require any expensive venting to be installed. But if you’re going to replace your old tank system with this tankless one, you might face some hassle and issues with setting up your existing plumbing.
Overall, this SioGreen model is a great option on its own for medium and large houses. It offers a decent flow-rate, comes in a compact size, and saves on your electricity bills. Plus, the Quartz infrared technology also prevents corrosion and limescale buildup.
WARNING: Some customers have complained about this unit not functioning well in very cold climates (below 50F).
When it comes to the price, this unit doesn’t come cheap. But considering the fact that it’s maintenance-free and energy efficient, it will save you tons of money in the long run.
Also, the innovative heating system significantly extends this water heater’s life, so you can be sure it will stay with you for years to come. We consider this a pretty good investment.
Features:
Coil-less – prevents corrosion and buildup
Long operational life
Saves money in the long run
Energy efficient
Compact size
No venting required
Can be difficult to install
Doesn’t work well in colder climates (below 50F)
In our opinion, this EcoSmart model is another excellent option for smaller homes and families.
This efficient little water heater works best in climates with incoming water temperatures of 67F or more. Despite being relatively more affordable than other options, this model offers pretty decent specs, features, and performance.
Lots of customers and experts are satisfied with their purchase of this water heater. But let’s go into some more detail so you can find out if it’s perfect for you or not:
The EcoSmart Eco 11 model is an electric-powered tankless water heater best known for its energy efficiency. In fact, with this model’s energy efficiency of around 99.8%, EcoSmart’s manufacturers claim this water heater can help you save up to 60% on your energy bills!
This small-sized unit can provide up to 2 GPM of hot water, which is good enough to take one steaming hot shower and run a bathroom or kitchen sink faucet simultaneously. It is also incredibly lightweight and can be used as a point-of-use (POU) heater in colder climates.
The Eco 11 features a self-modulating technology that automatically adjusts water temperatures to provide you with consistent hot water. It only uses power to heat the water you are actually using. This saves big time on your electricity bills and prevents water waste.
When it comes to installing this unit, you’ll be amazed at how easy it is. A 60-amp power supply coming from a double pole breaker, and a #6 copper gauge wire is all you need to set this up.
This eco-friendly water heater also comes with a digital temperature control, which supports up to 1-degree increments. You can adjust the water temperature just the way you like to up to 105F.
The thing we liked best about this water heater is, it comes with a lifetime warranty. That’s right. You will never have to worry about wasting your money on this because any issue you face can be easily addressed without costing you a penny.
All in all, this efficient and ‘smart’ unit is relatively affordable and designed for use in smaller homes. One downside is it’s not really useful as a whole house unit in climates with incoming water temperature less than 67F. You might have to use it as a POU unit on cold days, and that’s not very practical.
Some customers we talked to complained about fluctuating water temperature in this heater. This means you can go from warm to scalding hot or ice cold for no reason in the middle of your showers, which can be pretty dangerous.
This is an electric-powered heater. This means you don’t have to worry about venting or any of that stuff. Compared to gas-powered water heaters, this will help you save on installation costs, time, and space.
TIP: Consider purchasing this unit if you already have an existing water heating system and need some extra hot water, or if you have less use of hot water where you live.
Features:
Lightweight and compact
Highly energy efficient (99.8%)
Digital temperature control with one-degree increments
Great value for money
Lifetime warranty
Only useful as a POU unit in colder climates (>67F)
Not suitable for larger households
Fluctuating water temperature
This innovative electric water heater is great for single faucet use. If you need instant hot water for only a kitchen or bathroom sink, dishwasher, an outdoor faucet, or even a low-flow shower head (although, not recommended), this model is perfect for you.
There are so many good things about this product. It’s conveniently sized, easy to install, resists corrosion, and prevents the buildup of limescale, algae, and bacteria.
The most unique feature of this point-of-use (POU) model is it uses coil-less, quartz infrared technology to heat up only the water you use. This makes it an extremely energy efficient and safe option for you and your family.
Also, because it doesn’t use metal coils like most other electric water heaters, water doesn’t come into direct contact with the metal parts. While metal itself is not much of a problem, constant contact with water may lead it to break down after a while. The coil-free technology used in this heater means no corrosion and no buildup of limescale and calcium deposits.
Offering a flow rate of up to 1.5 GPM, the SioGreen IR260 effectively heats water on demand with self-modulating control, which means it won’t activate when you’re not using any water.
This compact water heater is also maintenance-free and self-cleaning. In fact, it claims to be able to work perfectly fine for over 20 years of continuous use. Think of how cost-effective that is!
For your convenience, it also comes with a digital temperature control so you can set it as you like.
To suit its purpose, this tankless water heater comes in one of the smallest sizes in the market and weighs only 5 lbs, so you can install it in just about any space you want. Moreover, installing it is super easy, and you don’t really need an expert to do it for you (although it is always recommended). SioGreen provides ample walkthroughs and installation support on their website.
The product clearly points out that the incoming water temperature should be at least 72F for a 1.5 GPM flow rate, which means it’s not very effective if the water in your area is usually colder than that.
Also, even though you can use it for a low-flow shower head, it’s not intended for shower use. You might also face trouble if it doesn’t produce enough steaming hot water for your everyday needs at times, such as quickly filling up a bucket.
This compact-sized, point-of-use water heater is a great bet for its competitive price. It barely requires any maintenance and has a pretty long operational life. Its resistance to corrosion and buildup makes it a great option for use in areas with hard water or well water. Moreover, it is incredibly energy and cost efficient because it only heats up water during use.
Features:
Coil-less – prevents corrosion and buildup
Long operational life
Great value for money
Energy efficient
Digital temperature control
Compact size
Easy to install
Incoming water temperature should be at least 72F for a 1.5 GPM flow rate
Not intended to be used with showers
Doesn’t produce enough hot water for more than single faucet use
This Ecosmart model is a powerful electric water heater with the capacity to provide steaming hot water to your whole house.
This tankless heater has a flow rate of up to 8 GPM, which is a lot! This means it can concurrently provide hot water to multiple water outlets located in different parts of your house. It’s perfect for larger families where multiple bathrooms, kitchen, and laundry often need hot water supply all at the same time.
Another great feature is the digital temperature control on this model. What makes this digital control so unique is you can adjust it even to one-degree increments. This means you can set the temperature to the exact degree and get the water to be as hot as you like.
Moreover, this water heater is self-modulating, which means it helps you save a lot of electricity costs by only expending energy when needed.
The Ecosmart 36 electric water heater is also much smaller in size compared to its competitors, considering the capacity it provides. That’s because it is built for indoor installation. It also has detachable parts you can easily remove and replace if necessary, without having to replace the whole unit itself.
The lifetime warranty that comes with this product isn’t a bad perk to have either. Although, it does have a catch. Your warranty won’t be of any use if you don’t get your model installed by licensed plumbers and electricians.
All in all, this model promises a lot to its buyers. It offers a great flow rate, a convenient size, a handy digital control, a lifetime warranty, and so much more. Plus, the customer service this company offers is great, which is an always a relief.
So what’s the catch?
Yes, we know about all the amazing things this product boasts of. But during our research, we found that some customers weren’t too happy with their purchase.
Mostly, it was because the Ecosmart 36 didn’t deliver what it promised. Some complained about the water not being as hot as set on the temperature control. Others found an issue with the operational longevity, with some products breaking down within just a few months. Some also found the startup to be slower than other tankless water heaters. We also found several reviews complaining about flickering lights in the house, especially in colder areas where the heater needs to use up a lot of electricity to heat the freezing water.
Despite some of the negative reviews surrounding the product’s performance, it is still worth a shot if you get it installed properly by professionals. You get a lifetime warranty, so any issue you face can easily be fixed!
Features:
Digital temperature control with one-degree increments
Comparatively small-sized
Detachable parts; easy to remove and replace
Lifetime warranty
Bad customer reviews on operational longevity
Doesn’t deliver as much hot water as expected
Slow startup than most other models
Installation + product can get costly
Do you love the outdoors and find yourself constantly going on adventures?
If yes, you must be familiar with the dire need of warm water on these trips. This Eccotemp portable outdoor water heater will be a great addition to your list of must-haves the next time you decide to head out into the wild.
There are so many good things about this handy little product.
First of all, it offers a pretty decent flow-rate of up to 2.65 GPM. That’s perfect for running two or three low-flow water outlets simultaneously. It can’t get any better at this price, too!
Note: The Eccotemp L10 Portable Outdoor Tankless Water Heater is powered by propane and ignited using two D batteries.
Moreover, it is incredibly easy and simple to set up and comes with all the necessary attachments. It’s also designed to be lightweight enough to carry around with you anywhere you go. With this portable model, you won’t have to waste your energy trying to drag a heavy-weight water heater to fulfill your hot water needs out in the open.
This useful water heater also comes with all the essentials you need to make it work like a charm. When you purchase this product, you also get a CSA-approved gas regulator and a hose to be used on a 20-pound grill style tank with it.
The gas regulator is there to keep you safe from any potential hazards, so it’s a great freebie to have. It also comes with a stainless steel rain cap, a garden hose adaptor, and other essential installation accessories.
It is designed to be portable and easy to carry around and use. Lightweight and durable, this heater runs on two D batteries for flame ignition and you can hook it up to a propane source anywhere you want.
Another great thing about this heater is it’s designed with safety in mind. It comes with an automatic shutoff timer, which turns the heater off after 20 minutes. This not only helps keep you safe from getting burned but also prevents any wastage of water in case you forget to turn it off.
This unit also features manual temperature controls with a range of 80-150F, so you can set it just the way you like. You can also adjust the flow-rate to set the right temperature. A low flow-rate will give you scalding hot water, and as you increase the flow, the temperature will automatically decrease.
Now, let’s talk about the installation.
This water heater is generally pretty easy to set up. It comes with a detailed instruction manual and all the necessary attachments/accessories to help you out.
This water heater is known for sometimes being irregular in its water temperature. This means you risk getting burned by scalding hot water unexpectedly, or maybe even unwanted, cold water at times.
Plus, some customers say they find the product and its parts cheap and low-quality. Moreover, Eccotemp’s customer service doesn’t have a good reputation either, so if guaranteed quality is important to you, you might want to consider other options.
The good thing is, this product doesn’t cost much at all. In fact, the capacity and features it offers are amazing compared to its price.
It’s really not a bad buy for something you’d want to use only during your outdoor trips and adventures. Keep in mind, however, this heater is not supposed to be installed permanently outdoors. It is meant to be portable, so you should not expect much good out of any other kind of usage.
Features:
Lightweight and portable
Budget-friendly
Safety auto-shutoff timer
Easy installation
Fluctuating water temperature
Not suitable for permanent use
Tankless water heaters are great for saving costs and energy and are great for the environment too. But choosing the right model for your home can get confusing. You need to do prior homework, and consider factors such as energy efficiency, price, installation, warranties, size and flow rates, and safety features before you make any kind of purchase.
We’ve put in a lot of hours testing each model to bring you this list of the top ten tankless water heaters. But you still want to do a little time shopping before you make a purchase to make sure the water heater you choose will meet your expectations.
These heaters do make a very compelling case for themselves, but since they require a larger investment upfront, it’s very important to do your homework before spending your money.
Here are some important factors to keep in mind before finally selecting the perfect unit for yourself:
One of the most important factors you should consider before buying a tankless water heater is its energy efficiency.
In order to make an informed decision, you need to know exactly how much the unit of your choice is going to save you on your gas and/or electric bills.
To do that, look for the Energy Factor (EF) rating. This rating tells you how efficient the unit is in terms of converting energy into heat, and how much energy is wasted during storage. The higher the EF rating (close to 1), the more energy efficient the unit is.
There are two major varieties of the tankless water heaters: gas and electric. Gas water heaters may work with natural gas, propane gas, or might be compatible with both.
Gas (Natural Gas or Propane):
Gas water heaters require a gas source to run their operation. Be sure to check what type of gas your choice of unit supports because it could vary between natural gas and propane.
Gas heaters’ requirement for electricity is also absolutely minimal and in some cases null. They are, however, slightly less energy efficient than electric-powered models. Either way, be sure to review the EF rating.
Electric:
Electric water heaters are very energy efficient and are much more versatile when it comes to installation (venting is not required). Of course, they use more electricity than gas heaters and are sometimes less powerful.
Every electric unit will have electric load specifications. Make sure to compare those with your home capabilities beforehand to make sure no issues arise after making your purchase.
A unit’s water flow will usually vary in different geographic locations.
For example, water will run through the tap at your desired temperature (usually around 120 degrees Fahrenheit) much more quickly in Arizona during the summer than it would in upstate New York during the winter.
There are two main factors behind this difference in water flow: The temperature of the incoming water, and the power of the units heating element.
Gallons per minute (GPM) is a measure of how much hot water a unit is able to produce in a minute. You can find the temperature rise and water flow-rate in GPM for every unit.
For example, a unit may be able to heat the water to 35 degrees at 4.5 GPM but in order to raise it to 85 degrees, the flow would have to be slowed to 2.3 GPM. This particular information is much more important for people who live in locations where the groundwater temperature falls very low. The max water flow rate, however, will be pretty accurate to what you’ll get at home in most cases.
If you live in colder regions, make sure to check the maximum temperature rise of the tankless water heater you’re considering to make sure it’s capable of meeting your demands, even if it is at a slower flow rate.
The chart below shows the average flow rate for common household appliances:
Safety features are very important for your tankless water heater and you should always keep an eye out for them.
Gas heaters emit nitrogen oxide, so you can look for a low NOx certification, which would mean that the SCAQMD (South Coast Air Quality Management District) has verified a NOx output of less than 14ng/J or 20ppm.
Some units also have a temperature lock feature, which restricts unauthorized people from changing the water temperature. Some other safety features to look for include built-in freeze protection, a manual hi-limit temperature reset, an overheat-cutoff fuse (prevents the unit from burning or exploding), and a flame sensor.
You can check if a unit holds any relevant certifications. These certifications provide further assurance of energy efficiency, proficient design, and safety. Here are some common certifications to look for:
Warranties on these units usually range from years to a lifetime. These warranties typically cover the heating element, labor, and other parts.
It’s highly recommended that you don’t try to install the unit yourself. Instead, call in professionals to have the unit set up for you. Some companies explicitly state the warranty for their products are only valid if the unit has been installed by a professional.
Also, a word to the wise: While some companies won’t outright state it, they can still void the warranty on your unit if they recognize improper installation.
Tankless water heater installation requires gas and/or electrical wiring, which is almost always best left to a professional. Another thing to consider is that improper fitting of water pipes can result in water flooding in your home. That’s why it’s highly recommended you get professionals to set up your unit.
Tankless water heaters are a great way to save up on your costs and energy bills. They also take up a lot less space than traditional tank models and can provide endless hot water for all your needs.
Before you go and buy a tankless water heater for your home or a commercial lot, you need to consider some important factors to make sure you purchase the right model and don’t waste your money.
These factors include the energy efficiency (the EF rating), which tells you how much energy costs you’ll save with the unit, and the size and flow rate, which tells you how much hot water a unit can provide in one minute.
You should also consider safety features, certifications, installation and warranty, and price of the product. In this review, we took a good look at ten of our favorite models for this year.
Heating water is almost a necessity. Tanks? Not so much. Get the best tankless water heater for your home with the help of this guide.
Heating water is almost a necessity. Tanks? Not so much. Get the best tankless water heater for your home with the help of this guide.
Heating water is almost a necessity. Tanks? Not so much. Get the best tankless water heater for your home with the help of this guide.
When you open a water outlet, it triggers the heater to switch on. The power source of your heater (gas or electric) starts rapidly heating the water as it travels through the unit. It can sometimes take a few seconds before you get hot water delivered to your faucet, but that also depends on the distance of your appliance from where the water heater is located.
A tankless water heater only operates when you use the water, which saves a lot of energy and cuts down a lot on your utility bills. It’s also good for the environment because it prevents wastage of water. Plus, because it heats up water as you use it, you never run out of hot water supply.
This really depends on the type of water heater you buy, and how much water you use per day. Check the energy efficiency (EF rating) of your unit to get a better idea.
Yes, but remember to choose the right size/flow-rate to suit your needs. If you want to use multiple showers simultaneously, for example, you might want to choose a unit with a flow-rate of more than 4 GPM.
If you have hard water, the best tankless water heater for you might be similar to the SioGreen units, which use infrared technology to prevent the buildup of deposits. However, tankless water heaters don’t store water like traditional tank heaters, which is why there are generally fewer chances of hard water problems.
Has a higher technical education. More than 10 years working as a manager in a household appliance store. He is interested in technology from an early age.
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