The Future of Hot Water | Exploring the Benefits of an Electric Tankless Water Heater

Feb 6, 2024 | Plumbing, Water Heaters

As homeowners and business owners seek ways to reduce energy usage and cut utility costs, the electric tankless water heater has emerged as a promising solution that addresses both efficiency and performance. In this detailed exploration, we delve into the transformative and forward-facing benefits of electric tankless water heaters, the domains they revolutionize, and the considerations to make before installing one of these modern marvels.

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Energy Efficiency of Electric Tankless Water Heaters

One of the most touted advantages of electric tankless water heaters is their superior energy efficiency. Unlike traditional systems, which maintain a reservoir of hot water, tankless electric solutions spring into action only when there’s a demand for hot water.


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This difference is monumental; tankless electric water heaters can achieve a thermal efficiency rating of 99 percent, meaning that 99 percent of the electricity that goes into the warming process comes out as heat. This stark improvement translates to significant reductions in energy wastage, a feat that aligns with green living and cost-effective energy consumption.

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Cost Savings of an Electric Tankless Water Heater

The high energy efficiency of electric tankless water heaters does more than just shrink your carbon footprint – it also slashes your utility bills. By eliminating the standby heat loss associated with traditional water heaters, tankless electric systems only use energy when hot water is needed. This on-demand functionality can not only reduces monthly energy costs but also curbs the need for standby heating.

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The Electric Tankless Water Heater Supplies Continuous Hot Water

Say goodbye to cold showers and waiting for the water to reheat. With electric tankless water heaters, you have a continuous source of hot water that won’t leave you shivering. The absence of a storage tank means there are no set limits to the quantity of hot water available, as these systems can deliver an endless flow, ensuring that whether you’re the first or the last to use the shower, the water will be consistently hot.

Space Saving Nature of Electric Tankless Water Heaters

The compact size of electric tankless water heaters is a win for properties with limited space. Unlike their bulky counterparts, which require a significant footprint for installation, tankless systems mount on the wall, freeing up valuable real estate. This advantage is particularly appealing for urban dwellers in apartments and condos, as well as those with smaller homes where every inch of space matters.

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How Long Will an Electric Tankless Water Heater Last?

The lifespan of an electric tankless water heater significantly surpasses that of its conventional tank-based counterparts, often lasting up to 20 years – or even more with diligent maintenance. The key to achieving such impressive longevity is the absence of a large water storage tank, which in traditional systems, can be susceptible to corrosion and sediment buildup over time.

The nature of tankless technology means fewer internal parts are at risk of such degradation, translating to lower maintenance needs and reduced risk of catastrophic failures. That being said, homeowners should still pay close attention to water quality and consider the installation of water softeners in areas with hard water to further reduce mineral buildup.

In addition, regular servicing by a qualified technician – which includes checking the heating elements, cleaning filters, and ensuring proper voltage and amperage operation – will help maintain the heater’s efficiency and extend its service life.

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Are Electric Tankless Water Heaters Energy Star® Certified?

Interestingly, despite their efficiency advantages, electric tankless water heaters currently do not receive the Energy Star® label. This lack of certification arises because the Energy Star® program prioritizes gas-powered units based on their criteria. Nonetheless, this hasn’t prevented other organizations from acknowledging the merits of electric tankless water heaters.

Despite lacking the Energy Star® endorsement, electric tankless water heaters can still outperform traditional gas water heaters when it comes to efficiency. These electric models operate on demand, only heating water when needed, unlike gas heaters that heat a stored volume continuously. This difference can lead to more efficient energy usage and, consequently, lower operating costs, even without the specific certification.

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Applications in Residential Settings

In residences, electric tankless water heaters address diverse living situations with their customizable capabilities. For single-family homes, they offer the ability to service multiple bathrooms simultaneously, meeting the demands of larger households without the burden of running out of hot water.

In compact apartments, their slender form becomes a critical advantage, allowing for installation in closets or tight nooks, which would be unfeasible for traditional tank heaters. Vacation properties, often unoccupied for long periods, benefit from the “on-demand” nature of these heaters, reducing energy waste when not in use and providing instant hot water upon the owner’s return. They also prove advantageous in multi-unit dwellings, where they can be installed individually, granting tenants independent control and responsibility for their own energy consumption.

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Applications in Commercial Settings

Commercially, the scalability of electric tankless water heaters is a valuable trait. They adeptly handle sporadic usage patterns typical in small businesses like cafes or boutique stores, offering hot water that suits both sanitary requirements and customer comfort.

Larger enterprises, such as hotels or fitness centers, can deploy multiple units across their premises to localize heating services and reduce water and energy losses. Their rapid recovery time ensures that peak demand periods, such as during workout class breaks or hotel check-in and check-out times, do not overwhelm the system.

Additionally, embracing these tankless heaters is increasingly seen as a component of corporate responsibility. By reducing their carbon footprint and energy expenses, businesses not only promote sustainability but also leverage this commitment to appeal to an environmentally conscious clientele.

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Considerations for Electric Tankless Water Heater Installation

Prior to transitioning to an electric tankless water heater, it’s imperative to assess several important factors that will affect both installation and functionality. Pasadena, Maryland residents can lean on the expertise of Maryland Sewer and Plumbing Service to navigate this process, but understanding the basics remains crucial for any homeowner.

Electrical Demands

Understanding the electrical demands involves checking the amperage, voltage, and circuit breaker compatibility. Electric tankless water heaters generally require a significant amount of electricity to heat water instantaneously. It’s vital to confirm that your home electrical system can handle the extra load without risking a system overload or requiring expensive electrical upgrades.

Water Flow Analysis

Assuring adequate water flow rates is also key to the system’s efficiency. These heaters activate when a minimum flow rate is detected, and if the water flow is inconsistent, it can affect the unit’s ability to provide hot water continuously.

Maintenance Requirements

Planning for maintenance is essential for longevity and uninterrupted service. While electric tankless water heaters have fewer components that can fail compared to traditional water heaters, periodic descaling and filter cleaning are important, especially in areas with hard water. Maryland Sewer and Plumbing Service provides comprehensive guidance and maintenance services to ensure your heater remains in top working condition.

Homeowners and businesses considering an upgrade in or around Pasadena, Maryland, are encouraged to schedule water heater services from Maryland Sewer and Plumbing Service. Our certified technicians will provide a detailed assessment and professional advice on transitioning to an electric tankless water heating system. With the right preparation, the move to an electric tankless water heater can be a smooth journey to greater energy efficiency and long-term savings.

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Is an Electric Tankless Water Heater Condensing or Non-Condensing?

Since an electric tankless water heater operates though electricity, they’re not categorized under condensing or non-condensing units. Instead, they’re known as resistive technology water heaters. This means that electricity directly heats the water passing through the unit, rather than using a heat exchanger like gas systems do.

However, electric tankless water heaters still require ventilation to dissipate any residual heat and prevent overheating. This is why proper installation and sizing are crucial to ensure safe operation and optimal performance.

Comparison to Traditional Water Heaters

One significant edge of electric tankless water heaters over traditional tank-based heaters is their direct method of heating water. Traditional models store and continuously heat water, which can lead to standby energy loss as the unit works to maintain the water at a constant temperature. This is less efficient compared to the on-demand heating mechanism of electric tankless heaters, which only heats water as needed. Consequently, this operational method results in significant reductions in energy consumption and utility bills.

Additionally, the absence of a storage tank in electric tankless water heaters minimizes the space required for installation, providing a practical solution for homes and businesses with limited space. Their compact size also contributes to a broader range of installation locations, offering more flexibility in system planning and development.

Furthermore, traditional water heaters typically have a shorter lifespan due to sediment buildup and corrosion over time, whereas the tankless design is less susceptible to such issues, ensuring a longer operational period. This reliability, coupled with reduced energy and space requirements, positions electric tankless systems as a superior choice for modern water heating needs.

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Are You Ready to Make the Switch?

The future of hot water lies in electric tankless water heaters. With their remarkable energy efficiency, cost savings, and continuous hot water supply, these systems are not merely an alternative to traditional water heaters; they are a step forward in the evolution of comfort and convenience. As technology advances and more models become available, it’s clear that electric tankless water heaters are not just a trend but a lasting innovation that equips us to meet the challenges of a changing world. Whether you’re looking to upgrade your current water heater or install one for the first time, the electric tankless water heater promises a bright future for energy-efficient and sustainable hot water solutions.

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