Remember that freezing cold shower you took last Tuesday? Yeah, the one that jolted you awake with an icy blast and left you shivering for the rest of the morning? It probably happened because your old water heater couldn’t keep up, and you were left wondering if there was a better way. Well, there is! Say goodbye to lukewarm showers and hello to endless hot water with the magic of tankless electric hot water heaters. These innovative systems provide hot water on demand, saving you energy and space.
If you’re tired of bulky tanks and inconsistent temperatures, you’re in the right place. We’ve compiled a comprehensive guide to help you navigate the world of best tankless electric hot water heaters. From understanding the technology to comparing top models, we’ll break down everything you need to know to choose the perfect system for your home, ensuring those cold shower nightmares become a distant memory.
We will review the best tankless electric hot water heaters later in this article. But before that, take a look at some relevant products on Amazon:
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So, You’re Thinking About Going Tankless? Let’s Chat!
Okay, so you’re tired of that bulky old water heater taking up valuable space and constantly humming away, even when you aren’t using hot water? I get it! Maybe you’ve heard whispers of a magical solution called a tankless water heater, and you’re intrigued. You’re probably also wondering if it’s the right choice for you. Well, you’ve come to the right place. We’re going to dive into the world of tankless electric hot water heaters and see if they’re the perfect fit for your needs.
These sleek devices are like the ninjas of the water heating world. Instead of storing gallons and gallons of hot water in a tank, ready and waiting (and costing you money!), they heat water on demand. This means endless hot showers (theoretically, anyway – flow rate is still a factor!), lower energy bills (potentially!), and a significantly smaller footprint. According to the U.S. Department of Energy, tankless heaters can be 8 to 34% more energy efficient than traditional tank heaters for homes that use 41 gallons or less of hot water daily. That’s a pretty significant difference!
Now, not all tankless heaters are created equal. We’re specifically focusing on the electric kind. While gas-powered tankless heaters are an option, electric models are often easier to install, especially in apartments or homes without existing gas lines. Plus, with advancements in technology, the best tankless electric hot water heaters are becoming increasingly powerful and efficient. Choosing the right one for your home involves understanding your hot water needs, electrical capacity, and budget.
So, stick around as we explore the ins and outs of choosing the best tankless electric hot water heaters. We’ll cover everything from sizing considerations to installation tips, and of course, our top recommendations. By the end of this, you’ll be well-equipped to make an informed decision and say goodbye to that energy-guzzling tank for good!
Best Tankless Electric Hot Water Heaters – Reviewed
Rheem RTEX-18
The Rheem RTEX-18 is a workhorse for smaller homes or supplemental hot water needs. It boasts self-modulating power, meaning it only uses the energy required to heat the water you’re actually using. This is great for energy savings and keeping those bills down. Installation is relatively straightforward, and its compact design makes it easy to fit in tight spaces. Digital temperature control allows for precise setting and easy monitoring, contributing to a consistent and comfortable hot water experience.
However, keep in mind that this unit isn’t designed to handle multiple high-demand appliances simultaneously. It’s best suited for smaller bathrooms, utility sinks, or as a point-of-use heater for a single shower. If your household has heavy hot water demands, you might want to consider a larger model or multiple units. Overall, the RTEX-18 is a reliable and efficient option for its intended purpose.
EcoSmart ECO 27
Looking for a whole-house electric tankless heater that can keep up with a busy family? The EcoSmart ECO 27 might be just what you need. This powerhouse is designed to handle demanding hot water needs, providing on-demand hot water for multiple showers and appliances running at the same time. EcoSmart is a well known brand in the tankless heater space and for good reason.
However, with great power comes great electrical requirements! The ECO 27 demands significant amperage, so be sure your electrical panel can handle the load. Professional installation is highly recommended to ensure proper wiring and prevent any electrical hazards. Also keep in mind, some users have noted that achieving the stated flow rate can be challenging depending on incoming water temperature.
Stiebel Eltron Tempra 24 Plus
The Stiebel Eltron Tempra 24 Plus is a top-of-the-line electric tankless water heater known for its advanced technology and consistent performance. Its Advanced Flow Control technology automatically adjusts the water flow to maintain a consistent temperature, even when demand fluctuates. This results in a comfortable and reliable hot water experience, every time.
Installation is relatively simple thanks to its compact design and easy-to-use controls. However, like other high-powered electric tankless heaters, it requires a significant electrical load, so professional installation might be required. Also, its higher price point might be a barrier for some, but the superior performance and energy efficiency may justify the investment for those seeking a premium option.
Ecosmart ECO 11
The Ecosmart ECO 11 is a popular option for point-of-use applications, known for its compact size and ease of installation. It is best suited for a single sink or appliance, such as a bathroom sink, small office, or laundry room. Ecosmart products are designed and manufactured in the US.
Due to its limited capacity, it’s not suitable for whole-house use or for running multiple fixtures at once. You may experience a drop in water temperature if multiple sources of hot water are in use. However, if you’re looking for a reliable and energy-efficient way to provide hot water to a single location, the ECO 11 is an excellent choice.
Titan SCR2 N-120
The Titan SCR2 N-120 is a great choice for a whole-house tankless heater. This unit features a self-modulating power design, so it uses only the energy needed to heat water. It is controlled by a microprocessor that regulates energy use. This can reduce your energy usage and save money on energy bills.
It is important to consider that this unit can require professional installation. It requires a dedicated 120 amp breaker. You may need to upgrade your breaker panel to safely operate this unit. If you can meet the electrical requirements, the Titan SCR2 N-120 is a great choice to provide hot water throughout your home.
Why Go Tankless? The Perks of Electric On-Demand Hot Water
Imagine this: you’re the last one to shower in the morning, and instead of a revitalizing blast of warmth, you’re greeted with a lukewarm dribble. Or picture your teenager taking another marathon shower, draining the hot water and leaving you washing dishes in icy water. These are frustrations many of us face with traditional tank water heaters. A tankless electric hot water heater offers a solution: endless hot water, precisely when and where you need it. No more cold water surprises or fights over shower time!
The beauty of a tankless system lies in its on-demand heating. Instead of constantly heating a large tank of water, which wastes energy even when you’re not using it, a tankless heater heats water only when you turn on the tap. This translates to significant energy savings, potentially lowering your utility bills. The best tankless electric hot water heaters are also incredibly compact, freeing up valuable space in your basement or utility closet. Think of what you could do with that extra room!
Beyond energy savings and space efficiency, consider the lifespan of a tankless heater. They often last much longer than traditional tank heaters, reducing the frequency and expense of replacements. Plus, with precise temperature control, you can enjoy perfectly heated water for every task, from a soothing bath to efficient laundry washing. Say goodbye to scalding hot water one moment and a sudden chill the next.
Investing in one of the best tankless electric hot water heaters is an investment in your home’s comfort, efficiency, and long-term value. It’s a modern solution to an age-old problem, providing a consistent and reliable hot water supply while saving you money and space. Upgrade your hot water experience and enjoy the endless benefits of going tankless!
Sizing Your Tankless Electric Water Heater: Getting It Just Right
Imagine you’re hosting a Thanksgiving dinner, and suddenly the hot water runs out while you’re washing dishes. Not ideal, right? Properly sizing your tankless electric water heater prevents this from happening. You need to consider the flow rate (gallons per minute or GPM) needed for your household’s simultaneous hot water demands. Think about running the shower, washing dishes, and doing laundry – all at the same time.
Sizing isn’t a one-size-fits-all situation. A small apartment with a single shower and minimal hot water appliance usage will have a drastically different requirement than a large family home with multiple bathrooms and high-demand appliances. Understanding your peak hot water usage is critical for selecting the correct tankless unit.
To estimate your flow rate needs, list every appliance or fixture that uses hot water (showers, faucets, dishwashers, washing machines) and note their individual GPM ratings. These ratings can usually be found on the appliance itself or in the manufacturer’s specifications. Add up the GPM ratings for all appliances you might use simultaneously to determine your peak demand.
Don’t underestimate your needs. It’s always better to slightly overestimate your GPM requirement rather than undersize your unit. An undersized unit will struggle to provide enough hot water, leading to temperature fluctuations and a generally frustrating experience. A slightly larger unit, however, will provide consistent hot water even during peak demand times, ensuring a comfortable and convenient experience.
Installation Considerations: DIY or Call a Pro?
Installing a tankless electric water heater is more complex than simply swapping out an old tank. It often involves electrical work, plumbing adjustments, and a good understanding of local building codes. While a seasoned DIYer might be tempted to tackle the project themselves, it’s important to realistically assess your skills and the potential risks. Imagine accidentally wiring something incorrectly and causing a power outage, or worse, creating a fire hazard.
One of the key considerations is the electrical requirements. Tankless electric water heaters require a significant amount of power, often necessitating a dedicated circuit and possibly an upgraded electrical panel. Do you have the knowledge and tools to safely handle electrical wiring and ensure compliance with local codes? If not, it’s best to leave this part to a qualified electrician.
Plumbing modifications might also be necessary. Connecting the water lines to the tankless unit requires proper fittings and connections to prevent leaks. Furthermore, you may need to upgrade your existing plumbing to handle the increased flow rate provided by the tankless heater. Leaks can lead to water damage and costly repairs, so ensure the plumbing connections are handled correctly.
Even if you’re confident in your skills, consider the potential cost of mistakes. An incorrectly installed unit can lead to inefficient operation, premature failure, or even safety hazards. Hiring a qualified professional ensures the installation is done correctly and safely, giving you peace of mind and potentially saving you money in the long run.
Cost Analysis: Upfront vs. Long-Term Savings
The initial cost of a tankless electric water heater can be higher than a traditional tank-style heater. However, the long-term savings can often outweigh the upfront investment. Let’s say you’re considering upgrading your vacation home. It’s only used a few months out of the year. A tankless heater could save you money since you’re not paying to heat water 24/7 when no one is there.
One of the primary cost savings comes from energy efficiency. Tankless heaters only heat water when you need it, eliminating the standby heat loss associated with traditional tanks. This can translate to significant savings on your energy bill over time. Calculate how much energy your current tank heater is wasting by continuously heating water you’re not using.
Beyond energy savings, consider the lifespan of a tankless unit. Tankless water heaters typically last longer than tank-style heaters, potentially reducing the need for replacement in the long run. Traditional tanks often need replacement every 8-12 years, while tankless models can last 20 years or more with proper maintenance.
Remember to factor in installation costs, which can vary depending on the complexity of the installation and whether you hire a professional. Also, consider potential rebates or incentives offered by your local utility company for installing energy-efficient appliances. These incentives can help offset the upfront cost and make the investment even more worthwhile.
Maintenance Tips: Keeping Your Tankless Heater Running Smoothly
Just like any appliance, your tankless electric water heater needs occasional maintenance to ensure optimal performance and longevity. Imagine forgetting to change the oil in your car; eventually, it will lead to problems. Similarly, neglecting your tankless heater can lead to scale buildup, reduced efficiency, and even premature failure.
One of the most important maintenance tasks is descaling or flushing the unit. Over time, minerals like calcium and magnesium can accumulate inside the heater, reducing its efficiency and potentially damaging the heating elements. Descaling involves circulating a descaling solution through the unit to remove these mineral deposits.
The frequency of descaling depends on the hardness of your water. Homes with hard water will need to descale more often than homes with soft water. Consult your owner’s manual for specific recommendations on descaling frequency and procedures. Generally, an annual descaling is recommended.
Regularly inspect the water lines and connections for leaks. Even small leaks can lead to water damage and reduced water pressure. If you notice any leaks, tighten the connections or replace the fittings as needed. Also, check the electrical connections to ensure they are secure and free from corrosion.
Don’t forget to clean the inlet filter. Most tankless heaters have an inlet filter to prevent sediment and debris from entering the unit. This filter can become clogged over time, reducing water flow and affecting performance. Clean the filter periodically to ensure proper water flow and prevent damage to the heating elements.
Your Guide to Finding the Best Tankless Electric Hot Water Heater
Hey there! So, you’re thinking about going tankless with your hot water? That’s awesome! You’re probably tired of that bulky tank taking up space and constantly heating water, even when you’re not using it. Switching to a tankless electric hot water heater can be a game-changer, saving you money on energy bills and providing endless hot water on demand. But with so many options out there, finding the best tankless electric hot water heaters for your needs can feel a little overwhelming.
Don’t worry, though! I’m here to walk you through everything you need to know before you take the plunge. We’ll break down the key factors to consider, so you can make an informed decision and enjoy all the benefits of a tankless system without any buyer’s remorse. Let’s get started!
Flow Rate: How Much Hot Water Do You Really Need?
Think of flow rate as the pace at which your hot water comes out. It’s measured in gallons per minute (GPM). The higher the GPM, the more hot water you can use simultaneously. Imagine this scenario: You’re taking a shower, and someone decides to run the dishwasher. If your tankless heater’s flow rate is too low, your shower is going to turn ice cold faster than you can say, “Honey, what are you doing?!”
To avoid that icy surprise, you need to figure out your household’s peak hot water demand. List all the appliances and fixtures that use hot water (showers, sinks, dishwashers, washing machines). Then, find their individual GPM ratings (usually listed on the appliance or fixture). Add up the GPM ratings of everything you might use at the same time. This will give you a good idea of the minimum flow rate you need for your best tankless electric hot water heater choice. Err on the side of slightly higher GPM than you think you’ll need, just to be safe.
Temperature Rise: From Cold to Comfortable
Temperature rise is how much the heater can increase the temperature of the incoming water. If your incoming water is quite cold, you’ll need a heater with a higher temperature rise capability to bring it up to a comfortable showering temperature. Think about where you live – do you live in a place with frigid winters? Then your incoming water is going to be much colder than someone who lives in a warm climate year-round.
To calculate the temperature rise you need, subtract your incoming water temperature from your desired output temperature (usually around 105-110°F for showers). For example, if your incoming water is 50°F and you want your shower to be 110°F, you need a temperature rise of 60°F. Check the heater’s specifications to make sure it can handle that rise at your desired flow rate. Some best tankless electric hot water heaters might struggle to deliver a high temperature rise and a high flow rate simultaneously, so pay close attention!
Power Requirements: Are You Ready for the Draw?
Tankless electric heaters require a significant amount of electricity, so you need to make sure your electrical system can handle the load. This is seriously important; otherwise, you’ll be tripping breakers left and right! Check the heater’s voltage and amperage requirements and compare them to your home’s electrical panel. Most tankless heaters require 240V, but some smaller models might use 120V.
You might need to upgrade your electrical panel, wiring, or even add a dedicated circuit for the heater. This can add to the overall cost of the installation, so it’s important to factor it in. Don’t try to DIY this unless you’re a qualified electrician – electrical work can be dangerous! Getting a professional evaluation will help you avoid any surprises and ensure your best tankless electric hot water heater runs safely and efficiently.
Size and Installation: Where Will You Put It?
One of the biggest advantages of tankless heaters is their compact size. But even though they’re smaller than traditional tanks, you still need to consider where you’re going to install it. Think about the location in relation to your plumbing and electrical connections. The closer it is, the easier (and cheaper) the installation will be.
Consider whether you want an indoor or outdoor model. Outdoor models are designed to withstand the elements, but they might require additional protection in extremely cold climates. Indoor models need proper ventilation, especially if they’re installed in a small space. Hiring a professional plumber and electrician will ensure the installation is done correctly and safely. They can also help you choose the best tankless electric hot water heater based on your available space and existing infrastructure.
Energy Efficiency: Saving Money in the Long Run
One of the main reasons people switch to tankless heaters is to save money on energy bills. Tankless heaters only heat water when you need it, eliminating standby heat loss that occurs with traditional tanks. Look for models with a high Energy Factor (EF) rating – the higher the EF, the more efficient the heater.
While the initial cost of a tankless heater might be higher, the long-term savings can be significant. Consider your hot water usage habits – if you tend to use a lot of hot water, a tankless heater can save you even more money. Also, check for rebates or tax credits offered by your local utility company or government. These incentives can help offset the upfront cost and make the best tankless electric hot water heater even more affordable.
Features and Technology: Smart Controls and More
Modern tankless heaters come with a variety of features and technologies that can enhance your experience. Some models have digital displays that show the water temperature, flow rate, and energy consumption. Others have remote controls or smartphone apps that allow you to adjust the temperature and monitor performance from anywhere.
Some advanced features can include self-diagnostics, which alerts you to any potential problems before they become major issues. Anti-scalding protection is also a valuable feature, especially if you have children or elderly family members. Consider what features are important to you and choose a model that meets your needs. Don’t get caught up in unnecessary bells and whistles, but do look for features that will improve your convenience and safety. Finding the best tankless electric hot water heaters often means finding one with the right technology for your lifestyle.
Brand Reputation and Warranty: Peace of Mind
As with any major appliance, it’s important to choose a reputable brand with a solid track record. Look for brands that are known for their quality, reliability, and customer support. Read online reviews and see what other customers have to say about their experiences. A good warranty is also essential.
A warranty protects you against defects in materials and workmanship. Check the length of the warranty and what it covers. Some warranties cover parts only, while others cover both parts and labor. A longer warranty indicates that the manufacturer has confidence in the durability of their product. Investing in a well-known brand with a strong warranty will give you peace of mind knowing that you’re protected in case something goes wrong. Choosing the best tankless electric hot water heaters also means choosing a brand you can trust.
Frequently Asked Questions
What exactly *is* a tankless electric water heater, and how does it differ from a traditional tank heater?
That’s a great question! Essentially, a tankless electric water heater heats water on demand, meaning it doesn’t store hot water in a tank like traditional models. When you turn on a hot water tap, cold water travels through the unit, and powerful electric heating elements instantly heat it to the desired temperature. Once you turn off the tap, the heating stops.
The big difference is that you only use energy when you need hot water. With a tank heater, energy is constantly used to keep the water inside the tank hot, even when you’re not using it. This makes tankless models more energy-efficient in the long run, though they often require a higher initial investment and potentially electrical upgrades.
How do I know what size tankless electric water heater I need for my home?
Sizing is definitely important! You don’t want to end up with lukewarm showers. The size of your tankless heater depends on two main factors: the maximum flow rate you’ll need (measured in gallons per minute or GPM) and the temperature rise required. The flow rate is the combined GPM of all the hot water fixtures you might use simultaneously (think shower, faucet, dishwasher). Temperature rise is the difference between the incoming cold water temperature and the desired hot water temperature.
To figure this out, consider your climate and how many people live in your home. You can find flow rate ratings for your fixtures online or often printed on the fixture itself. Then, estimate how many fixtures might be used at the same time. A plumber can help you calculate these needs accurately and recommend the right size heater for your specific situation. Remember, it’s better to slightly overestimate than underestimate!
Are tankless electric water heaters really as energy-efficient as everyone says?
For the most part, yes! They can definitely save you money on your energy bill compared to traditional tank heaters. The key advantage is that they eliminate standby heat loss – that constant energy waste of keeping a tank of water hot 24/7.
However, the actual energy savings will vary depending on your hot water usage habits. If you only use hot water sparingly, you’ll likely see a significant reduction in your energy bill. If you frequently run multiple hot water appliances at the same time, the savings might be less dramatic. Still, even moderate users usually find tankless heaters more efficient over the long term.
What kind of electrical work is involved in installing a tankless electric water heater?
This is a super important consideration! Tankless electric heaters require a significant amount of electricity, often more than older tank-style heaters. This usually means running new, dedicated electrical circuits to the unit from your breaker box. Depending on the size of the heater, you might also need to upgrade your electrical panel to handle the increased load.
Because of this, installation is usually best left to a qualified electrician and plumber. They can assess your electrical system, determine if any upgrades are needed, and ensure the heater is installed safely and according to local codes. Trying to DIY this could be dangerous and potentially void the warranty.
What are some common problems I might encounter with a tankless electric water heater?
Like any appliance, tankless heaters can sometimes have issues. One common problem is mineral buildup, especially in areas with hard water. This can reduce the heater’s efficiency and lifespan. Regular flushing can help prevent this – most manufacturers recommend doing this annually.
Another potential issue is insufficient electrical capacity. If the heater isn’t getting enough power, it might not be able to heat the water to the desired temperature or keep up with demand. Finally, while less common, heating elements can fail over time and need to be replaced. The good news is that most issues are relatively easy to fix with proper maintenance and professional help.
How long do tankless electric water heaters typically last?
That’s a great question when considering an investment! Generally, tankless electric water heaters are known for their longevity. You can typically expect them to last anywhere from 15 to 20 years, and sometimes even longer, with proper maintenance.
This lifespan is significantly longer than traditional tank heaters, which usually last around 10-12 years. Because there’s no tank to corrode and leak, tankless models tend to be more durable. Regular flushing to remove mineral buildup, as mentioned earlier, can also help extend their lifespan even further.
Are tankless electric water heaters noisy? I don’t want something that sounds like a jet engine every time I turn on the hot water!
That’s a valid concern! Nobody wants a noisy appliance disrupting their peace and quiet. Fortunately, most tankless electric water heaters operate relatively quietly. You might hear a slight humming sound as the heating elements activate, but it’s usually not very loud or disruptive.
Compared to traditional tank heaters, which can sometimes make gurgling or rumbling noises as they heat the water, tankless models are generally much quieter. However, if you notice any unusually loud or strange noises coming from your tankless heater, it’s best to have it checked out by a professional to identify and resolve any potential issues.
Final Thoughts
So, there you have it! We’ve explored some of the best tankless electric hot water heaters on the market and armed you with the knowledge to confidently choose the perfect one for your needs. Remember, the ideal choice hinges on your household size, hot water demands, and electrical capacity. Think about what’s truly important to you and what will bring the most convenience and energy savings into your life.
Now it’s time to take the plunge and say goodbye to lukewarm showers and hello to endless hot water! Don’t be afraid to invest in a more efficient and modern hot water solution. With the right best tankless electric hot water heaters, you’re not just buying an appliance; you’re investing in comfort, convenience, and a brighter, more sustainable future for your home. Go forth and enjoy that perfectly heated water!