5 Advantages and Installation of Small Electric Tankless Water Heater

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Are you contemplating getting a new water heater for your home? If so, this little electric tankless water heater is the thing for you. Unlike the large tanks that most homes have, these new, modern heaters do not store hot water. Instead, they quickly heat water whenever you turn on the tap, so you have hot water whenever needed.

The tankless water heater is popular due to the space, energy, and long-term savings it provides. This article will cover everything positive about these heaters, the working principle, and a few hints for using and maintaining them. By the end, you will see exactly why a tiny electric tankless water heater could be just what you need in your home.

Benefits of Small Electric Tankless Water Heaters

Small electric tankless water heaters have several benefits in heating water in your household. Let’s delve into detail about each.

Energy Efficiency

The key reason why one should pick a tankless water heater is that it is very energy efficient. These units do not heat and keep a large tank of water as conventional units do; they heat water on demand.

That means they use less energy, saving you money on your electricity bill. Homes that use less hot water can save even more, making these heaters 24% to 34% more efficient than their tank brethren.

Space Saving

Need more space? Small electric tankless water heaters take up much less room than the standard big tank-type water heaters. You can install them in tighter spaces, like under a sink or in a little closet.

That makes them perfect for smaller homes or apartments, where every inch of space matters. They are typically only about 28 inches tall and 20 inches wide​.

Continuous Hot Water Supply

Now, imagine not running out of hot water in the middle of a shower. These tankless heaters come in to deliver hot water on demand, perfect for families or anyone who uses a lot of hot water at once. It also ensures instant hot water when needed without bearing that wait​.


The small electric tankless water heaters are much more efficient, small in size, and much more long-lasting when compared to the conventional tank heaters most people set up. If a traditional tank heater is expected to last for 10–15 years, a tankless one will exceed 20 years with proper care and maintenance.

As a result, they are a significant investment in your house, saving you money not only from the energy bills but also on replacement over the long haul.

These advantages explain how the little electric tankless water heater might be a wise addition to your home. Besides, these gadgets are convenient and fit almost everywhere.

How Small Electric Tankless Water Heaters Work

When you know how the mini electric tankless water heaters work, you will see why they are such an intelligent decision for your home. Here’s how it works:

Instant Heating Mechanism

It does not store hot water like old-fashioned tank heaters. When a hot tap is opened, cold water runs through the heater. Inside, either electric elements or a gas burner heats the water as it passes through immediately.

This means the hot water is always fresh and never sits in a tank where it can cool down or collect sediment.

Continuous Flow

When you turn on a hot water tap, you’re automatically triggered to run the cold water inside the heater. It comes in and flows over electric elements that turn on instantly. The water is heated almost instantly. Since it does not depend on the amount of water stored anywhere, it always provides hot water.

The water will never stop, and the heater will be running when you use hot water, whether you shower or wash dishes, to ensure you have hot water on demand. They come in only two styles: over-the-counter and under-the-counter.

Efficiency and Speed

Tankless water heaters are designed to be very efficient. They use power only when hot water is required, so they use energy wisely by heating water all day. Hot water, which saves energy through on-demand heating, is also supplied faster than a traditional tank heater. You don’t have to wait for a big tank to fill up and heat. You get it almost immediately ​.

Installation of Small Electric Tankless Water Heaters

Small electric tankless water heater installation: Installing a small tankless water heater requires a couple of imperative steps. Pay attention to the installation to maximize the new heater’s efficiency and safety.

Assessing Electrical Requirements

Before installing a tankless water heater, one should ensure that an electrical installation in a home is up to the task. Most of these heaters require a high level of electrical power. It, therefore, implies that some houses will require upgrading of the electrical system for it to support the tankless water heater.

This procedure is, therefore, crucial, considering that tankless water heaters require adequate and steady electric current to work efficiently.

Have a licensed electrician inspect your electrical system and make the required system upgrade.

Choosing the Installation Location

After this, determine where your water heater will be installed. Water heaters come in small-sized and compact forms; therefore, they can be installed in almost all locations within a house, such as closets, under cabinets, or even in a basement.

However, ensure that you position it where you can easily access its location for maintenance and where there is adequate airflow for its safe operation. The position will also be close to the rooms where most water is used in the house, for example, bathrooms or kitchens, to minimize the lag in hot water delivery.

Installation Process

Install the heater: securely attach the heater to a wall or other suitable solid building member to ensure the appliance is rigidly in place.

Water Line Connection: Connect the cold water line coming into the heater and the hot water line going out from the heater to the plumbing in your house.

Electrical connections: Make all required electrical connections per the manufacturer’s instructions. Usually, it means the unit is wired in right at the circuit breaker or electrical panel. A professional must again do this to protect people and meet local electrical codes.​

As with working on systems combining water and electricity, it is wise to install a tankless water heater by a professional plumber or a certified person.

This person could ensure the unit was correctly and safely installed with all the rules and regulations according to the local building codes.

Family Handyman reports that professional installation is essential to guarantee the safety and efficiency with which the unit will be working.

Proper installation is quite essential to the performance of your tankless water heater. This investment pays back in the durability of the system, its correct functioning, and energy efficiency.

Maintenance of Small Electric Tankless Water Heaters

Ensure your small electric tankless water heater remains efficient and serves you well for a long time with these essential tips:

Regular Cleaning

Periodic cleaning is one of the most valuable services for tankless water heaters, and it needs to be done, especially in complex water areas. The mineral deposits in the heater reduce its efficiency and ability to heat water. Cleaning a tankless water heater involves:

Flush the System: An infusion of vinegar may be employed from time to time to remove these mineral deposits. It is done by passing the vinegar through the system for approximately one hour, which dissolves the buildup and carries it away​.

Annual Professional Maintenance

In addition to in-home cleaning, an annual inspection is best conducted by a professional technician for your tankless water heater as follows:

Inspection and Cleaning: This is done quickly at home, as the technician has to examine the unit for wear or damage signs and then clean it thoroughly.

System Updates and Adjustments: They can upgrade their system’s firmware, fine-tune their digital models, and adjust the settings to achieve maximum performance while maintaining electrical safety.

Monitoring Performance

Routine inspections of a tankless water heater will keep you up-to-date with what’s happening before they become significant issues. Signs that service will be necessary include lower temperatures in the water, longer times for the water to become hot at a proper temperature, and some strange noises while it’s working.

These things will significantly reduce costlier repairs in the future.

Replacing Parts

Even though tankless water heaters are expected to have a much longer life than the traditional tanked models, in the end, some of the parts within them will need to be replaced. Some of these elements include the heating elements, sensors, and control panels, all of which can be replaced and significantly extend the life of a heater if they are replaced when necessary.

Proper maintenance extends the life of your tankless water heater and ensures it runs as efficiently as possible, keeping your energy bills lower and providing reliable hot water.


In conclusion, small electric tankless water heaters, like the Yorkmate YM-G2-J88, offer compelling benefits for modern homes, including superior energy efficiency, space-saving design, and continuous hot water supply. With longevity surpassing 20 years and minimal maintenance requirements, these units provide a cost-effective, durable solution for your water heating needs, ensuring comfort and convenience in your daily life.

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Ready to experience endless hot water with savings on space and energy? Explore the features of the Yorkmate YM-G2-J88 and upgrade your home today! Discover more here.

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