Master Your Eternal Tankless Water Heater: Guide to Features, Maintenance, and Troubleshooting

Welcome to our article on Eternal Tankless Water Heaters, the ultimate solution for an efficient and reliable water heating system in your home. If you’re in search of an Eternal Tankless Water Heater, you’ve come to the right place. In this article, we will explore the key features of Eternal Tankless Water Heaters, different models available, and how to troubleshoot common issues.

Whether you’re considering repair or replacement options, or simply looking for maintenance tips, we’ve got you covered. So, sit back, relax, and delve into the world of Eternal Tankless Water Heaters, where endless hot water awaits.

The most important findings at a glance

  • Eternal Tankless Water Heaters offer key features and come in different models.
  • Understanding the Water Pressure Switch (WPS) in Eternal Water Heaters is important, and troubleshooting common failures is necessary.
  • The decision to repair or replace your Eternal Water Heater depends on signs of damage, and professional services are available for maintenance.

eternal tankless water heater

Key Features of Eternal Tankless Water Heaters

Upgrade now to the remarkable Eternal Tankless Water Heaters and indulge in the ultimate home comfort. With their energy-efficient technology, these heaters not only save you money, but also ensure that hot water is available whenever you need it. Say goodbye to running out of hot water during peak hours or in a bustling household.

Moreover, their compact design allows for effortless installation in any space. Don’t miss out on the opportunity to enhance your home with unlimited hot water, convenience, and cost savings.

By the way, if you’re interested in learning more about eternal water heaters, I found this helpful article here that explains how they work and their benefits.

By the way, if you’re looking for more information about the Air Scrubber Plus being discontinued, you should definitely check out this article “Air Scrubber Plus Discontinued” .

Models of Eternal Tankless Water Heaters: GU100, GU145, GU195

Step into a world of limitless hot water with Eternal Tankless Water Heaters. With three exceptional models to choose from – GU100, GU145, and GU195 – you can find the perfect fit for your unique needs. For those with smaller households, the GU100 is a true gem.

With its compact design and easy installation, it seamlessly integrates into any space. But don’t let its size fool you – this model packs a punch when it comes to energy efficiency. Say goodbye to wasteful heating and hello to endless savings.

Plus, with a constant supply of hot water, you’ll never be left out in the cold again. When it comes to larger households, the GU145 rises to the occasion. Its impressive capacity ensures that hot water will flow freely, even during the busiest of times.

No more juggling shower schedules or waiting for the water to heat up again. And with advanced features and technologies, this model takes performance and efficiency to new heights. But if you demand nothing but the best, the GU195 is the crown jewel.

With its incredible capacity , it’s a force to be reckoned with. Whether you have a bustling household or a commercial setting, this model has you covered. And with its array of advanced features and technologies, you can trust that your hot water supply will always be reliable.

When making your decision, take into account your household size, hot water usage, and budget. Each model offers its own unique benefits and specifications. Compare and contrast to find the perfect match for your needs.

With Eternal Tankless Water Heaters, you can enjoy a never-ending supply of hot water, all while saving energy and space. So don’t wait any longer – choose the model that suits you and experience the luxury of reliable and efficient hot water supply.

eternal tankless water heater

Mastering Your Eternal Tankless Water Heater: Maintenance, Troubleshooting, and Repair Guide

  1. How to properly maintain your Eternal tankless water heater
  2. Identifying common failures in the water pressure switch (WPS) of Eternal water heaters
  3. Troubleshooting steps for resolving WPS failures
  4. Understanding and fixing the E27 error code in Eternal water heaters
  5. Deciding whether to repair or replace your Eternal water heater

Common WPS Failures and How to Identify Them

Your Eternal tankless water heater may encounter issues due to a malfunctioning water pressure switch. Keep an eye out for signs such as inconsistent water temperature, peculiar noises, or water leakage. These problems can disrupt your heater’s efficiency, resulting in frequent cycling, increased energy consumption, and a limited supply of hot water.

To identify and resolve these issues, examine the switch for any damage or loose connections. You can also use a multimeter to test its functionality. If the switch is indeed faulty, it must be replaced.

For an accurate diagnosis and repair, it is advisable to seek assistance from a professional. To prevent water pressure switch failures and maintain optimal performance, regular maintenance is crucial. This includes flushing the system, checking and replacing the water filter, and inspecting and cleaning the heat exchanger.

By promptly addressing WPS issues and staying on top of maintenance tasks, you can revel in the luxury of endless hot water from your tankless heater.

eternal tankless water heater

Troubleshooting WPS Failures: Step-by-step Guide

Addressing common causes of water pressure switch (WPS) failures in Eternal tankless water heaters is essential for maintaining optimal performance. A clogged water filter can impede water flow, leading to WPS malfunction. Additionally, a faulty pressure sensor or inadequate water pressure can contribute to WPS failures.

To troubleshoot these issues, follow these steps. Begin by checking and cleaning or replacing the water filter. Next, inspect the pressure sensor and replace it if necessary.

Ensure that the incoming water supply meets the recommended pressure range. Lastly, check for any leaks in the system and repair them as needed. Preventing WPS failures requires regular maintenance.

Flushing the system regularly to remove sediment, replacing the water filter, and cleaning the heat exchanger are crucial steps to ensure efficiency and extend the lifespan of your water heater. By following these maintenance tips , you can avoid WPS failures and enjoy consistent hot water supply.

Comparison of Gas Tankless Water Heaters – Tabelle

Model GU100 GU145 GU195
Energy Efficiency 94% 95% 96%
Maximum Flow Rate (GPM) 8.4 9.8 11.1
BTU Input 19,500 – 199,000 19,500 – 199,000 19,500 – 199,000
Dimensions (inches) 18.3 x 12.8 x 7.6 18.3 x 12.8 x 7.6 18.3 x 12.8 x 7.6
Weight (lbs) 45.9 45.9 45.9
Venting Type Direct Vent Direct Vent Direct Vent
Certification Energy Star Energy Star Energy Star
Warranty 15 Years Heat Exchanger, 5 Years Parts 15 Years Heat Exchanger, 5 Years Parts 15 Years Heat Exchanger, 5 Years Parts
Included Accessories Remote Control, Isolation Valve Kit Remote Control, Isolation Valve Kit Remote Control, Isolation Valve Kit
Price (USD) $1,200 $1,500 $1,800
Installation Type Indoor/Outdoor Indoor/Outdoor Indoor/Outdoor
Ignition System Electronic Ignition Electronic Ignition Electronic Ignition
Minimum Activation Flow (GPM) 0.4 0.4 0.4

E27 Error Code: What it Means and How to Fix It

The E27 error code in Eternal tankless water heaters can be quite frustrating. However, it is important to address it promptly in order to avoid any further damage. This code signifies a specific issue that requires immediate attention.

The E27 error code is typically caused by problems with the gas supply or the ignition system. To resolve this issue, there are a few steps that you can follow. First, ensure that the gas supply is not obstructed and that the gas valve is fully open.

If there is any blockage in the gas line, it should be cleared or replaced. Next, carefully inspect the ignition system and replace any faulty components, such as the igniter or the flame sensor. It is crucial to address the E27 error code promptly, as it can lead to system failure and potential safety hazards.

Take immediate action to resolve the issue and ensure that your Eternal tankless water heater continues to operate efficiently. If you are unsure about how to fix the error code or if the problem persists, it is best to seek the assistance of a professional. They possess the necessary expertise to diagnose and repair any issues with your Eternal tankless water heater, ensuring optimal performance and longevity.

If you’re curious about the amps needed for a tankless water heater, check out our article “Tankless Water Heater Amps” to find out all the information you need.

eternal tankless water heater

Signs That Your Eternal Water Heater Needs Repair

The haunting echoes of unfamiliar sounds, the unwelcome dance of shifting water temperatures, and the persistent drip of leaking water all serve as harbingers of distress for your Eternal water heater. To dismiss these signs is to invite a cascade of more dire consequences. Those peculiar sounds, whether they be thunderous bangs or haunting hisses, hint at a lurking menace within the depths of the tank.

Sediment buildup , the culprit behind these dissonant symphonies, sows the seeds of inefficiency within the heater’s core. And what of the mercurial waters that refuse to heed our desires? Their tepid touch or capricious fluctuations may point to a wayward thermostat or a rebellious heating element.

The harmony of consistent temperatures eludes us. Yet, it is the persistent drip, that humble messenger of impending doom, that demands our immediate attention. Leaks and drips reveal a flaw in the pressure relief valve, the tank itself, or the very connections that hold our water heater together.

To turn a blind eye to this betrayal is to invite the wrath of water damage upon our homes. Thus, it is imperative that we seek the guidance and expertise of a professional without delay. Only they hold the power to assess and mend our Eternal water heater, shielding us from the exorbitant costs of repairs or replacement.

By acting swiftly, we safeguard the longevity and efficiency of this essential tool that warms our lives.

eternal tankless water heater

Did you know that Eternal tankless water heaters are designed to provide endless hot water? That’s right, you’ll never have to worry about running out of hot water again!


My name is Warren and I am a professional plumber licensed and insured in the State of California. I have been in the business for over 10 years and have undertaken small and large projects including bathroom renovation, toilets, garbage disposals, faucets, sinks and kitchen plumbing jobs. This site is based on my experience with toilets. I have installed the best brands and models in all sizes and shapes. I hope this helps you with the unbiased information that you need to make the right decision. …weiterlesen

When to Consider Replacing Your Eternal Water Heater

Determining whether it’s time to bid farewell to your trusty Eternal water heater requires careful consideration of a few vital factors. The age of the unit is a key consideration; as time passes, older water heaters become less efficient and prone to requiring more repairs. If your beloved Eternal water heater is approaching or has already surpassed its anticipated lifespan, it might be prudent to explore the possibility of a replacement.

Frequent breakdowns and an endless string of repairs are clear signs that a new water heater is in order. The constant need for repairs can be both exasperating and financially burdensome. If you find yourself trapped in a never-ending cycle of spending time and money on repairs, it’s worth considering the cost-effectiveness of investing in a reliable, shiny new water heater.

Upgrading to a more modern model can also work wonders for energy efficiency. Older water heaters have a knack for guzzling up energy, leading to soaring utility bills. By embracing the wonders of advanced technologies and energy-efficient designs, a newer model can help you make substantial savings on your monthly energy costs.

Ultimately, the decision to part ways with your Eternal water heater should be grounded in its age, repair history, and potential energy savings. If you find yourself unsure of what path to take, seeking the guidance of a professional can provide you with the clarity you need to make an informed decision.

Replacement Options for Eternal Water Heaters

When it comes time to upgrade your Eternal water heater, the options are endless. From tankless to traditional tank models, there’s something for everyone. But how do you choose the right one?

First, think about your hot water needs. Consider the capacity and specifications that will work best for you. And don’t forget about the installation space available.

Some models require more room than others. But the benefits don’t stop there. Upgrading to a newer Eternal water heater means improved energy efficiency and lower utility costs.

Plus, the advanced features of newer models make for better performance and convenience. So, take your water usage, space limitations, and budget into account. And if you’re unsure, don’t hesitate to consult with a professional.

They’ll help you find the perfect replacement for your Eternal water heater.

eternal tankless water heater

In this video, we explore the features and benefits of the Eternal Tankless Water Heater. Discover how this innovative appliance provides endless hot water on demand, saving you energy, space, and money. Find out why the Eternal Tankless Water Heater is a game-changer in the world of water heating.

YouTube video

Regular Maintenance Tips for Eternal Water Heaters

Maintaining your Eternal Water Heater is key to its smooth operation and longevity. Follow these simple tips for optimal performance:

1. Regularly flush the system to remove sediment build-up and prevent efficiency loss and damage.

2. Check and replace the water filter to ensure pure water and maximize performance. Regular inspections are recommended.

3. Inspect and clean the heat exchanger to prevent debris build-up and maintain efficiency. Regular maintenance extends the water heater’s lifespan. By incorporating these maintenance tasks into your routine, you’ll have reliable hot water whenever you need it.

Keeping your Eternal Water Heater in top condition guarantees peak performance, efficiency, and durability.

Professional Services for Eternal Water Heaters

Entrusting the care of your Eternal tankless water heater to the capable hands of professionals is the wisest choice. With their regular maintenance, you unlock a multitude of benefits, such as optimizing efficiency and prolonging the lifespan of your beloved appliance. Not only can these experts detect and resolve potential issues before they manifest into costly problems, but they also guarantee a flawless installation that safeguards against leaks and malfunctions.

Their comprehensive services encompass flushing the system, inspecting and replacing the water filter, as well as cleaning the heat exchanger. By placing your trust in these skilled individuals, you can rest assured that your investment is nurtured with utmost care. Armed with the knowledge and expertise required, they will ensure your Eternal water heater continues to perform at its peak for countless years to come.

eternal tankless water heater

Everything You Need to Know About Eternal Tankless Water Heaters

  • Eternal tankless water heaters are a popular choice for homeowners looking for energy-efficient and space-saving water heating solutions.
  • One key feature of Eternal tankless water heaters is their endless hot water supply, as they heat water on demand and do not require a storage tank.
  • Eternal offers a range of models, including the GU100, GU145, and GU195, each with different flow rates and capacities to suit various household needs.
  • The water pressure switch (WPS) is an important component in Eternal water heaters, responsible for detecting water flow and controlling the heating process.

1/2 Get in Touch: Your Guide to Eternal Tankless Water Heater Services

For the perfect care and performance of your Eternal tankless water heater, entrust the task to skilled professionals. Their expertise in maintenance and installation will guarantee efficiency, longevity, and cost savings. With their expert touch, potential problems are eliminated and endless hot water becomes a reality.

From repairs to troubleshooting, these professionals offer comprehensive solutions tailored to your specific needs. Embrace the expertise and services of professionals to ensure your Eternal tankless water heater meets all your hot water needs .


In conclusion, we hope that this article has provided you with valuable information about Eternal tankless water heaters . We have discussed their key features, models, common issues with the water pressure switch, troubleshooting steps, and when to consider repair or replacement. We have also provided maintenance tips and options for professional services.

By addressing these topics, we have aimed to meet the search intent of users looking for information about Eternal tankless water heaters. We encourage you to explore our other articles on similar topics to further enhance your knowledge and understanding. Thank you for reading and considering our insights on Eternal tankless water heaters.


How much is the eternal water heater?

The initial price for two brand new gas heaters was approximately $1300, whereas this particular unit costs $1600. In terms of annual operating costs, the total expense for my two 50-gallon units came to $520 per year ($259 each), while the tankless heater only cost $195 to operate. Based solely on operating costs, it would take a significant amount of time to recover the investment.

What is the best tankless water heater on the market?

Here are some highly rated tankless water heaters for your home: – Forbes Home Rating gives a BBB Accredited rating to the Eemax 27kW ELECTRIC TANKLESS WATER HEATER, which is rated 4.1 out of 5 as a very good option. – Another great choice is the Rinnai RU160iN RU Model Series, also rated 4.1 out of 5 as very good by Forbes Home Rating. – Stiebel Eltron Tempra® Plus Whole House Electric Tankless Water Heaters, with a rating of 4.1 out of 5 as very good, are also worth considering. – Lastly, the Titan N-120 Tankless Water Heater is rated 4.1 out of 5 as great. These tankless water heaters offer reliable performance and are highly recommended for your home.

What is negative about tankless water heater?

Tankless water heaters offer numerous benefits compared to traditional storage-tank water heaters. They are highly energy-efficient and have a longer lifespan, making them a cost-effective and durable choice. Additionally, tankless water heaters provide a continuous supply of hot water, eliminating the need to wait for the water to heat up. However, it’s important to note that there are a few drawbacks associated with tankless water heaters. They can be more expensive to install initially, requiring professional installation and potentially additional modifications to the home’s electrical or gas systems. Furthermore, some users may experience inconsistent water temperatures due to the heating process. Despite these limitations, the overall advantages of tankless water heaters make them a popular and practical option for those seeking efficiency and longevity.

Why not to buy a electric tankless water heater?

Tankless water heaters have some drawbacks that you should consider before making a purchase. One significant drawback is the high cost involved in both purchasing and installing these units. Unlike traditional tank-style water heaters, which can be installed for around $900, tankless water heaters can cost over $3,000 to install. This higher price point may be a restrictive factor for some consumers.

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