2024 Comprehensive Guide: Essential Tips to Consider Before Buying a Tankless Water Heater

2024 Comprehensive Guide: Essential Tips to Consider Before Buying a Tankless Water Heater

Are you tired of the endless battles with conventional water heaters and the fear of running out of hot water? Say goodbye to the hassle with a tankless water heater. These compact, efficient hot water heaters provide on-demand hot water, eliminating the need for wasteful storage tanks.

Embark on a journey into the realm of tankless water heaters with our comprehensive guide, featuring the game-changer and innovative Eccotemp Tankless Water Heaters. These compact, on-demand solutions promise to revolutionize your hot water experience.

Before making the switch, uncover the essential considerations that will ensure a seamless transition to a more efficient and continuous hot water supply.

The Inefficiency of Conventional Water Heating

Conventional water heating methods suffer from inherent inefficiencies, primarily stemming from the constant energy expenditure required to maintain water temperatures in storage tanks. This results in standby heat losses, where energy is wasted on heating water that may not be immediately utilized. These inefficiencies contribute to higher utility costs and a notable environmental impact, as the continuous energy consumption adds to the overall carbon footprint.

Modern alternatives, such as tankless or on-demand water heating systems, address these drawbacks by heating water only when needed. This not only eliminates standby losses but also offers a more energy-efficient solution, demonstrating the potential for transitioning away from conventional approaches to create a more sustainable and cost-effective water heating paradigm.

Is Investing in a Tankless Water Heater Worth It?

Investing in a tankless water heater can be a worthwhile decision for many households due to its numerous advantages. Unlike conventional hot water heaters that continuously heat and store water, tankless water heaters only heat water on-demand, leading to significant energy savings and lower utility bills. Additionally, tankless water heaters have a longer lifespan compared to traditional models, reducing the need for frequent replacements and associated maintenance costs.

Furthermore, tankless hot water heaters take up less space than their bulky tank counterparts, providing homeowners with more flexibility in installation and potentially freeing up valuable storage space. Although the initial upfront cost of a tankless hot water heater may be higher, the long-term benefits in terms of energy efficiency, cost savings, and convenience make it a worthwhile investment for many households looking to upgrade their water heating system.

Benefits and Advantages of an Eccotemp Tankless Water Heater

  • Long-Term Savings: Investing in an Eccotemp Tankless Water Heater may require an initial cost, but the long-term energy savings make it a financially wise choice. With potential efficiency gains of 24% to 34% for homes using less than 41 gallons of hot water daily, the heater pays for itself over time.
  • Unlimited Hot Water: Escape the constraints of a traditional tank – Eccotemp Tankless Water Heaters provide a continuous flow of hot water. The gas models, in particular, deliver higher gallons per minute (GPM), ensuring a consistent and ample supply of on-demand hot water.
  • Space Efficiency: Optimize your space with Eccotemp Tankless Water Heaters, ushering in a streamlined setup that eliminates the need for a bulky tank. This absence of a traditional tank not only frees up physical space but also provides flexibility in installation. Embrace a more efficient and space-conscious solution without compromising on performance, making Eccotemp Tankless Water Heaters an ideal choice for those seeking a compact and versatile water heating solution.
  • Compact Design: Eccotemp tankless water heaters are designed to save space, making them suitable for various installation locations. Their wall-mounted structure ensures efficient use of space.
  • Advanced Technologies: Eccotemp integrates features like instant hot water and experience effortless water heater management with the Eccotemp Smart App, providing convenience and control over your hot water system.
  • Reduced Risk of Water Damage: Bid farewell to the threat of tank failures and ruptures. Eccotemp tankless water heaters, devoid of stored water, eliminate the risk of significant water damage, though vigilance regarding pipes and fixtures is still essential.
  • Safety: Experience precise temperature control, eradicating sudden hot water spikes. Eccotemp's commitment to safety ensures a reliable and comfortable hot water supply.

Make the transition to Eccotemp tankless water heaters for a home upgrade that guarantees efficiency, space optimization, and peace of mind.

Key Tips When Buying a Tankless Water Heater

1.Understanding Tankless Technology

Tankless technology revolutionizes the way water is heated by eliminating the need for a storage tank. Instead of continuously heating and storing water, tankless systems heat water instantly as it passes through a heat exchanger. This on-demand heating approach significantly reduces energy consumption, as there are no standby heat losses associated with keeping a large volume of water hot at all times.

Additionally, tankless water heaters offer greater flexibility in installation due to their compact size and ability to be mounted on walls or in tight spaces. They also provide a continuous supply of hot water, eliminating the inconvenience of running out of hot water during peak usage times. With their energy efficiency, space-saving design, and consistent performance, tankless water heaters are becoming increasingly popular as a modern alternative to conventional water heating systems.

2. Sizing Matters

One of the key considerations is the size of the tankless water heater. The hot water heater must be appropriately sized to meet the hot water demands of your household. Factors such as the number of bathrooms, appliances, and simultaneous water usage play a role in determining the right size for your needs.

Consider the diverse range of applications, spanning from whole home and mid-sized homes to tiny living spaces and commercial establishments. Within each gas model, you have the option to select either a propane tankless water heater or a natural gas tankless water heater, allowing you to tailor your choice based on personal preference and specific area requirements.



Whole Home

6.5, 6.8, and 7.0 gallons per minute (GPM) models

Mid-size Home

4.0 and 6.0 gallons per minute (GPM) models

Tiny Living Spaces

4.0 gallons per minute (GPM) models

Commercial Establishments

4.0 gallons per minute (GPM) models

3. Energy Efficiency

Eccotemp tankless water heaters are renowned for their exceptional Energy Factor (EF) ratings, setting them apart as a leading choice for residential water heating solutions. These innovative systems utilize advanced technology to heat water on-demand, eliminating the need for a storage tank and reducing standby heat losses. By heating water only when needed, Eccotemp tankless heaters minimize energy consumption, resulting in significant cost savings on utility bills while also reducing environmental impact. Consider EF ratings when choosing a tankless water heater for smart, sustainable hot water solutions.

Eccotemp tankless water heaters are designed with efficiency in mind, incorporating features such as digital temperature controls with voice commands by Alexa & Google in Eccotemp’s Smart Home Tankless Water Heaters set to redefine your expectations. These smart features ensure that the heater operates at peak efficiency, delivering a continuous supply of hot water while minimizing energy waste. With their focus on energy efficiency and advanced technology, Eccotemp tankless water heaters offer homeowners a reliable and sustainable solution for meeting their hot water needs.

4. Fuel Type

The selection of a specific fuel type hinges on several crucial factors, including your home's existing infrastructure, the availability of energy sources, and personal preferences. Natural gas is a common choice for homes already connected to a gas supply, providing a cost-effective and reliable fuel source. On the other hand, propane offers flexibility for homes without a natural gas connection, making it suitable for various locations. Eccotemp Tankless water heaters offer versatility in fuel types, allowing homeowners to choose between gas options such as natural gas or liquid propane.

When deciding on the fuel type for an Eccotemp Tankless water heater, it's essential to weigh the initial cost, operating expenses, and environmental impact. While natural gas may have a lower initial cost and is often more energy-efficient, propane can be advantageous in areas where natural gas isn't readily available. Additionally, considering the long-term operating costs and the environmental footprint of each fuel type ensures a well-rounded decision that aligns with both financial and sustainability goals.

5. Installation and Maintenance

Before investing in a tankless water heater, it's important to carefully assess the installation requirements and associated costs. Certain models may necessitate specific venting systems or electrical upgrades, impacting both the feasibility and overall expense of installation. This consideration is especially pertinent for retrofitting tankless heaters into existing homes, as potential modifications to the infrastructure should be factored into the decision-making process.

Understanding the maintenance demands of the chosen tankless water heater model is paramount. Regular maintenance is essential to ensure optimal performance and longevity. Tasks such as descaling, checking for leaks, and verifying the functionality of safety features contribute to the heater's efficiency and overall reliability. By being proactive in addressing maintenance needs, homeowners can maximize the benefits of their tankless water heater investment, guaranteeing a consistent and efficient hot water supply over the system's operational lifespan.

6. Flow Rate

The flow rate of a gas tankless water heater plays a pivotal role in determining its ability to deliver hot water effectively. It signifies the volume of hot water the heater can produce per minute, directly impacting its performance during peak usage times. When selecting a tankless water heater, it's crucial to consider your household's peak hot water usage to ensure an uninterrupted and seamless experience.

Choosing Eccotemp Gas Tankless Water Heater with an adequate flow rate aligns with the specific needs of your household. By accurately assessing the simultaneous hot water demands, whether from showers, faucets, or appliances, you can select an instant hot water heater that meets or exceeds these requirements. This thoughtful consideration ensures that the chosen tankless water heater can efficiently provide hot water to multiple fixtures simultaneously, meeting the demands of your household without compromising performance.

Household Water Usage


Flow Rate in GPM


1.5 to 2.0 GPM

Bath Tub Faucet

2.0 to 3.0 GPM

Bathroom Vanity Sink Faucet

0.5 to 1.5 GPM

Kitchen Sink Faucet

1.0 to 2.2 GPM

Washing Machine

1.5 to 3.0 GPM


2.0 to 3.0 GPM

Warranty and Reliability

Check the manufacturer's warranty, as a longer period signals product reliability. Read customer reviews to gauge the real-world performance and satisfaction levels of the tankless water heater you're considering.

Eccotemp stands behind its innovative water heaters with a robust warranty. Check our website for the comprehensive Warranty Program and access support via live chat, appointments, and self-help guides. Schedule a Free Post Purchase Installation Consultation for setup guidance and FAQs.

New Technologies in Eccotemp Tankless Water Heaters

Eccotemp Tankless Water Heaters are at the forefront of innovative technologies, ushering in a new era of energy-efficient and space-saving water heating solutions. Incorporating cutting-edge advancements such as smart controls, adaptive modulation, and precision temperature control, these gas tankless water heaters optimize performance while minimizing energy consumption.

The integration of durable materials and sophisticated engineering ensures longevity and reliability. With a focus on environmental sustainability, Eccotemp embraces eco-friendly features, making them a standout choice for those seeking modern, efficient, and eco-conscious water heating solutions.

  • Higher Efficiency: Eccotemp sets the standard for efficiency with its gas tankless water heaters, boasting an impressive capability to extract up to 96 percent of a fuel's heat. This remarkable advancement translates directly into substantial energy savings for users. By maximizing heat extraction, Eccotemp ensures that minimal energy is wasted, making it a standout choice for those seeking cost-effective and environmentally conscious heating solutions.
  • Instant Hot Water: Experience the convenience of nearly instantaneous hot water with Eccotemp's hot tankless water heaters. Say goodbye to waiting for water to heat up and hello to immediate convenience. Eccotemp's innovative technology ensures that hot water is readily available whenever you need it, providing unparalleled convenience and efficiency for your daily routines.
  • Smart App & Voice Commands: Elevate your convenience and control with the world's first-ever all-in-one Smart Home Tankless Water Heater with voice commands by Alexa & Google and easy peasy water heater management using Eccotemp Smart App, allowing you to effortlessly monitor and manage your tankless water heater via digital connectivity using your smartphone. Receive real-time alerts straight to your device, enabling prompt and efficient issue resolution. With this seamless integration of technology, you can stay connected and in command of your water heating system from anywhere, ensuring peace of mind and optimal performance at all times.

Buying Guide FAQs: Tankless Water Heaters

Question: How much does a tankless water heater cost?
Answer: Tankless water heaters range from $200 to $2,000 or more, depending on type and features. Factors like fuel type, capacity, and installation requirements influence the price.

Question: Can I install a tankless water heater myself?
Answer: While possible, installation often requires professional expertise due to gas line connections. Professional installation ensures safety, proper venting, and compliance with local codes.

Question: What maintenance do tankless water heaters need?
Answer: Regular maintenance includes filter cleaning, scale buildup checks, and component inspections. Some models may require periodic descale flushing. Adhering to the manufacturer's maintenance recommendations is vital for optimal performance.

Question: How long do tankless water heaters last?
Answer: Gas tankless water heaters typically last around 20 years, while electric water heaters have a 7 to 10-year lifespan. Longevity depends on maintenance and water conditions. Refer to the manufacturer's specifications for specific model details.

Question: What size tankless water heater do I need?
Answer: Sizing depends on factors like water temperature, hot water demand, and efficiency. A professional plumber can assess your needs, but generally, 140,000 Btu tankless water heater is plenty for any traditional style single family home. The larger the BTU does not mean the better the performance. Choose your tankless water heater based on how many uses simultaneously you may need.

Question: What are the different types of tankless water heating?
Answer: Eccotemp offers various tankless water heater options in gas and electric. Gas models use natural gas or propane. Choose based on your home's infrastructure and energy availability. 

Question: How many GPMs do I need for a tankless water heater?
Answer: Determine your hot water needs based on simultaneous water usage. Eccotemp provides guidelines for Gallons Per Minute (GPM) requirements in the product information. Consider factors like the number of bathrooms and appliances in use.

Question: What size vent do you need for a tankless water heater?
Answer: Vent size requirements depend on the heater type and model. Eccotemp provides detailed specifications for venting in the product manual. Ensure proper venting for safe and efficient operation. Some models for outside installation do not require venting.


Transitioning to a tankless water heater represents a savvy choice for enhancing both your home's comfort and energy efficiency. Armed with the insights outlined in this comprehensive buying guide, you'll possess the knowledge needed to make a discerning decision tailored to your household's hot water requirements and financial considerations. Bid farewell to the inconvenience of cold showers and welcome the consistent, efficient warmth delivered by a tankless water heater. Reject the impractical extravagance of traditional water heaters; instead, embrace the streamlined efficiency and eco-conscious design of Eccotemp Tankless Water Heaters for a more sustainable and comfortable living experience starting today!

Find The Right Water Heater

Our agents are here to help find the right water heater for your installation and needs. Tankless water heaters are not a one size fits all!

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    "Great value. If you compare the features with any other brands, you will not find another value. I’ve been extremely impressed with this unit."

    - Adam V.
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    6.8 GPM Indoor Tankless Water Heater, 45 Series

    "Saved The Day! We had a very old water heater that was notorious for taking 1 minute to get hot in the shower, the 45HI-NG has the shower hot in 10 seconds! Thank you Eccotemp!"

    - Tyler C.
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    "Great price, fast delivery. I installed the unit under the kitchen sink. From opening the box, plumbing and connecting via Wifi were no more than 60 mins. I'll monitor the daily KW usage. Strongly recommend trying this unit."

    - Wade T.
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    "We love ours. Imagine cool weather with muddy 4 wheelers, muddy dogs, muddy kids, & gear...well that would destroy a normal weekend but not ours. We love taking warm showers and cleaning up with ours! It truly has been a game changer."

    - Mark F.
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    "Cannot be happier with this water heater. My family came home from a long weekend and we all were in desperate need for showers. Family of five showered back to back with no issues. Thanks for making life that much easier!"

    - Ron S.
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    "Works great. Love it, does great for a family of 4, love the app and how you can adjust temp from phone. Works great for younger kids."

    - Redd
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    "This guy recuperates in 20 minutes or less... Easily installs and works on 120 volts with very low power consumption and you do not have to wire up for high amps or a 240 line. I highly recommend this unit."

    - Louis G.
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    Luxé 3.0 GPM Portable Outdoor Tankless Water Heater

    "Quickly heats water. I like the thermostat with digital reading of water temperature. Has ample pressure and never ran out of warm water rinsing my horse whose reaction was that he liked the warm water."

    - Betty S.
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    "Great buy! Great purchase! Installation was quick and easy. Highly recommend!"

    - John C.
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    "I installed the unit a month ago with some fantastic tech support. Over all I am very happy with the performance of the heater and would recommend this unit to anyone."

    - Marc D.
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    "Look and size of the hot water heater is perfect if you are adding this to a work shop or bathroom. This water heater uses Wi-Fi so you can connect to Alexa and ok Google. Very nice packaging and very clear, easy to follow directions."

    - Matt
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    Luxé 1.85 GPM Portable Outdoor Tankless Water Heater

    "Great Portable Water Heater. Delivers functionally and aesthetically. Very easy to set up and came with everything I needed. Well constructed and I like that I can easily see the water temp. Look forward to years of use."

    - ARS