10 Best WiFi-Enabled Electric Tankless Water Heaters for Ultimate Convenience in 2025

If you’re considering upgrading your home’s hot water system, WiFi-enabled electric tankless water heaters might be just what you need. These models combine modern technology with efficiency, offering you control at your fingertips. Imagine adjusting the temperature from your phone or monitoring energy usage in real time. With various options available, you’ll want to know which models stand out for their performance and convenience. Let’s explore the top contenders for 2025.

EcoSmart ECO 11 Electric Tankless Water Heater

The EcoSmart ECO 11 Electric Tankless Water Heater is a fantastic choice for those seeking efficient and compact hot water solutions. With its 13KW power and patented self-modulating technology, you’ll enjoy endless hot water without running out. Its dimensions make it 90% smaller than traditional tank heaters, allowing for easy installation in tight spaces. You can maintain a consistent temperature within 1°F of your setting, with a maximum flow rate of 3.1 gallons per minute. Ideal for small sinks or bathrooms, it’s perfect for your home or office, offering 99% thermal energy efficiency while heating water only when you need it.

Best For: Individuals or small families looking for an efficient, space-saving solution for on-demand hot water in bathrooms and low-flow applications.

Pros:

  • Endless hot water supply with consistent temperature control.
  • Compact design that saves space and is easy to install in tight areas.
  • High energy efficiency with a 99% thermal energy rating, reducing energy costs.

Cons:

  • May struggle to support multiple simultaneous showers in colder climates.
  • Requires a 240-volt electrical supply, which may necessitate professional installation.
  • Limited flow rate of 3.1 gallons per minute may not be sufficient for larger households.

110V Tankless Electric Water Heater

For those seeking a compact and efficient solution for instant hot water, the ECOTINYMACH 110V Tankless Electric Water Heater stands out with its space-saving design and powerful performance. Weighing only 2.4 pounds and measuring 4.53 x 2.36 x 7.87 inches, it fits perfectly under your sink. You’ll appreciate features like the convertible temperature scale, LED display, and overheat protection, ensuring safety and convenience. Plus, its energy-efficient design cuts down on bills while being environmentally friendly. Installation is straightforward, requiring a 32AMP circuit breaker. With a solid customer rating of 3.9 stars, this heater is a reliable choice for your home.

Best For: Those looking for a compact and energy-efficient solution for instant hot water in small spaces.

Pros:

  • Compact design allows for under-sink installation, saving space.
  • Energy-efficient operation helps reduce energy bills and carbon footprint.
  • Features like LED display and overheat protection enhance safety and usability.

Cons:

  • Requires a 32AMP circuit breaker for installation, which may not be available in all homes.
  • Customer rating of 3.9 stars indicates mixed feedback from users.
  • Limited to electric usage, which may not suit all preferences or setups.

Tankless Electric Water Heater 110V, 3000W Instant Hot Water Heater

Looking for an efficient solution to instant hot water needs? The Tankless Electric Water Heater 110V, 3000W is your answer. This compact, wall-mounted heater fits perfectly under sinks in kitchens, bathrooms, RVs, and even while camping. It heats water quickly, raising the temperature by 82°F in just 3-5 seconds at 0.3GPM. With an IPX4 waterproof rating and multiple safety features, you can use it confidently. Installation is straightforward, and it comes with all necessary components. Plus, enjoy peace of mind with a 24-month warranty and customer support for any issues. Upgrade your hot water experience today!

Best For: Individuals and families seeking an efficient, compact solution for instant hot water in kitchens, bathrooms, RVs, and camping.

Pros:

  • Compact and wall-mounted design saves space and is easy to install.
  • Heats water quickly, achieving desired temperatures in just 3-5 seconds.
  • Multiple safety features ensure reliable operation and user protection.

Cons:

  • Limited to 110V, which may not be suitable for larger households with high hot water demands.
  • Requires proper installation with specific wiring and circuit requirements.
  • May not provide sufficient hot water for simultaneous multiple uses at higher flow rates.

Tankless Electric Water Heater 3000W

Offering on-demand hot water with a maximum temperature of 110°F, the Tankless Electric Water Heater 3000W is perfect for small households or those needing hot water for specific tasks. Weighing just 2.4 pounds, it’s lightweight and wall-mounted, making installation a breeze. The digital display allows you to easily monitor settings, while features like anti-dry burning and anti-overheating guarantee safety. With a maximum flow rate of 0.5 GPM, you’ll enjoy efficient performance. Constructed with durable materials, including stainless steel and corrosion-resistant brass, this heater combines convenience and reliability for your everyday needs.

Best For: Small households or individuals needing efficient, on-demand hot water for specific tasks.

Pros:

  • Lightweight and easy to install, perfect for wall mounting.
  • Features such as anti-dry burning and overheating protection enhance safety.
  • Digital display allows for easy monitoring and temperature adjustments.

Cons:

  • Limited maximum temperature of 110°F may not satisfy all hot water needs.
  • Maximum flow rate of 0.5 GPM may be insufficient for larger households.
  • Customer rating of 3.4 out of 5 stars suggests mixed user satisfaction.

Rheem 11kW 240V Tankless Electric Water Heater

The Rheem 11kW 240V Tankless Electric Water Heater is ideal for homeowners seeking efficient, on-demand hot water without the hassle of traditional storage tanks. With a flow rate of up to 2.68 GPM, you’ll enjoy consistent and continuous hot water whenever you need it. The adjustable digital temperature display and self-modulating power control allow you to customize your experience easily. Plus, the ON/OFF dial control simplifies operation. Its side 1/2 NPT water connections make installation straightforward. Investing in this unit means you’ll never run out of hot water again, enhancing your home’s comfort and convenience.

Best For: Homeowners looking for an efficient, on-demand hot water solution without the need for bulky storage tanks.

Pros:

  • Compact design saves space and is easy to install.
  • Provides an endless supply of hot water, eliminating the risk of running out during peak usage.
  • Adjustable temperature control allows for personalized comfort and convenience.

Cons:

  • May require a higher upfront cost compared to traditional tank water heaters.
  • Performance can be affected by the incoming water temperature and flow rate.
  • Installation may require electrical upgrades for optimal performance.

Rheem 8kW 240V Tankless Electric Water Heater

For those seeking an efficient solution to on-demand hot water needs, the Rheem 8kW 240V Tankless Electric Water Heater stands out with its compact design and impressive flow rate of up to 1.95 GPM. Weighing just 6.34 pounds, it’s perfect for wall mounting in tight spaces. With an adjustable digital temperature display and self-modulating power control, you can easily customize your hot water experience. Customers appreciate its stainless steel finish and reliable performance, reflected in a solid 4.1-star rating. Plus, with a 30-day return guarantee, you can purchase with confidence knowing support is readily available.

Best For: Individuals or families looking for an efficient, space-saving solution for on-demand hot water in small to medium-sized applications.

Pros:

  • Compact design suitable for tight spaces and wall mounting.
  • Adjustable digital temperature display for customized hot water settings.
  • High customer satisfaction with a 4.1-star rating reflecting reliable performance.

Cons:

  • Limited flow rate of up to 1.95 GPM may not be sufficient for larger households.
  • Requires a 240V electrical connection, which may necessitate professional installation.
  • Warranty information may not be readily available without accessing a PDF link.

ORBEK 14kW Tankless Electric Water Heater

If you’re in search of a compact and efficient solution for instant hot water, the ORBEK 14kW Tankless Electric Water Heater stands out with its impressive flow rate of up to 3.38 GPM, making it ideal for households with 2-3 points of use. Weighing just 13.04 pounds and measuring 9.5W x 14.2H x 3.1D inches, it saves over 50% space compared to traditional tank heaters. With endless hot water in just 3 seconds and energy savings of up to 60%, you’ll enjoy stable temperature control and advanced safety features. Plus, the LED display makes temperature adjustments a breeze!

Best For: Homeowners seeking a compact, energy-efficient solution for on-demand hot water in households with 2-3 points of use.

Pros:

  • High energy efficiency reduces electricity costs by up to 60% compared to traditional tank heaters.
  • Provides endless hot water in just 3 seconds, ensuring convenience for multiple uses.
  • Compact design saves over 50% space, making it an excellent choice for smaller homes or apartments.

Cons:

  • Requires a specific electrical setup (240V/60AMP) that may necessitate professional installation.
  • Limited flow rate of 3.38 GPM may not be sufficient for larger households with more simultaneous hot water needs.
  • Initial cost may be higher than traditional water heaters, potentially affecting budget-conscious consumers.

Rheem 3.5kW 120V Point of Use Thermostatic Tankless Electric Water Heater

Ideal for homeowners and small businesses looking for a space-saving solution, the Rheem 3.5kW 120V Point of Use Thermostatic Tankless Electric Water Heater delivers efficient hot water without the bulk of traditional models. This compact unit is perfect for low flow applications like bathrooms, breakrooms, or garages. With adjustable thermostatic controls from 80 to 140 degrees Fahrenheit, you can easily customize your hot water experience. It requires a 30 AMP double pole breaker and hardwiring to 120 volts. Weighing just 4 pounds and measuring 10.88 x 5.88 x 3 inches, it easily fits in tight spaces.

Best For: Homeowners and small businesses seeking an efficient, space-saving hot water solution for low flow applications.

Pros:

  • Compact design, making it suitable for tight spaces and low flow applications.
  • Adjustable thermostatic controls allow for personalized temperature settings.
  • Highly efficient energy usage, contributing to lower energy bills.

Cons:

  • Limited maximum flow rate of 0.9 gallons per minute may not suffice for larger needs.
  • Requires specific electrical installation with a 30 AMP double pole breaker.
  • Customer rating of 3.5 out of 5 stars indicates mixed satisfaction among users.

Tankless Electric Water Heater, 3000W 110V

The Tankless Electric Water Heater, 3000W 110V, stands out for its ability to deliver instant hot water, making it perfect for kitchens, bathrooms, and even mini RVs. With a compact design, it heats water quickly to temperatures ranging from 68-122°F. You’ll appreciate the one-touch operation and adjustable settings for convenience. Its automatic standby mode guarantees you have hot water whenever needed. The heater features essential safety protections against dry burning, leakage, and overheating. Installation is straightforward, requiring vertical placement and Teflon tape on connections. Enjoy the comfort and efficiency of this reliable water heater in your space!

Best For: Those seeking an efficient, space-saving solution for instant hot water in kitchens, bathrooms, or mini RVs.

Pros:

  • Heats water quickly to a comfortable range of 68-122°F.
  • Compact design allows for easy installation and use in tight spaces.
  • Multiple safety features ensure protection against dry burning, leakage, and overheating.

Cons:

  • Limited to a maximum output of 3000W, which may not suffice for larger applications.
  • Customer ratings indicate mixed satisfaction with performance (3.3 out of 5 stars).
  • Requires vertical installation, which may limit placement options.

Mini Instant Hot Water Heater (6.5kW 240V)

For homeowners seeking an efficient and space-saving solution for their hot water needs, the Mini Instant Hot Water Heater (6.5kW 240V) stands out as a top choice. This on-demand heater delivers endless hot water for sinks, making it ideal for kitchens and bathrooms. With a stylish LED display and a user-friendly knob, you can easily adjust the temperature between 86°F and 131°F. It boasts multiple safety features like overheat and leakage protection, ensuring peace of mind. Compact and versatile, it fits perfectly in apartments, dorms, and various other locations, making hot water access quick and convenient.

Best For: Homeowners looking for a compact and efficient hot water solution for sinks in kitchens and bathrooms.

Pros:

  • Provides endless hot water on demand without the need for preheating.
  • User-friendly LED display with an easy-to-use knob for temperature control.
  • Equipped with multiple safety features, ensuring reliable and safe operation.

Cons:

  • Not suitable for use in showers or with multiple taps simultaneously.
  • Requires a specific 240V power supply and a high amp circuit breaker for installation.
  • Limited to a single point of use, which may not meet the needs of larger households.

Factors to Consider When Choosing Wifi Enabled Electric Tankless Water Heaters

When choosing a WiFi-enabled electric tankless water heater, you’ll want to contemplate several key factors. Energy efficiency ratings, installation requirements, and flow rate capacity can greatly impact your decision. Plus, don’t overlook control options and safety features that enhance usability and security.

Energy Efficiency Ratings

Choosing a WiFi-enabled electric tankless water heater involves considering several key factors, with energy efficiency ratings topping the list. Look for models with high percentage ratings, as these indicate lower energy consumption and greater savings on your electricity bills. The best units boast thermal efficiency ratings of up to 99%, converting nearly all energy into hot water. Self-modulating technology is another feature that can adjust energy usage based on demand, leading to significant savings compared to traditional tank heaters. Don’t forget to check for Energy Star certification, which guarantees the product meets strict efficiency guidelines. Also, consider the flow rate, measured in gallons per minute (GPM), as higher rates might require more energy to maintain consistent temperatures.

Installation Requirements

Before diving into the installation of a WiFi-enabled electric tankless water heater, it’s essential to understand the specific requirements that come with these units. Most models need a dedicated circuit and breaker, usually ranging from 30 to 60 amps, depending on the power rating. You’ll also need the right wire gauge, typically 10 AWG or 6 AWG, to manage the amperage safely. Standard plumbing connections, generally 1/2 inch NPT, are required for both water inlet and outlet, ensuring compatibility with your existing plumbing. For peak performance, vertical installation is recommended to prevent heating element malfunctions. Finally, check if your unit needs extra safety features like dry combustion protection to meet local building codes.

Control Options

After ensuring your WiFi-enabled electric tankless water heater is installed correctly, the next step is to explore the various control options available. Many models come with mobile app integration, letting you control temperature settings and monitor usage from anywhere. If you prefer voice commands, look for units compatible with smart home systems for added convenience. Setting schedules for heating water can optimize energy consumption, cutting down on utility bills by heating only when needed. Advanced models may even allow customizable user profiles, so everyone in your household can enjoy their preferred temperature. Plus, real-time alerts sent to your smartphone will keep you informed about maintenance needs or system issues, ensuring proactive management of your unit.

Flow Rate Capacity

When selecting a WiFi-enabled electric tankless water heater, understanding flow rate capacity is essential for meeting your household’s hot water needs. The flow rate, measured in gallons per minute (GPM), indicates the maximum hot water your unit can deliver. To guarantee peak performance, choose a unit that matches your household’s simultaneous demands, like multiple showers or faucets running at once. Most electric tankless water heaters offer flow rates ranging from 0.5 GPM to over 3.0 GPM, with higher rates better suited for busy households. Keep in mind that the inlet water temperature affects flow rate; colder water reduces hot water output. So, consider your local climate conditions when selecting a unit for the best efficiency and usability.

Safety Features

Choosing a WiFi-enabled electric tankless water heater involves more than just flow rate; safety features play an important role in protecting your home and family. Look for models with dry combustion protection to prevent overheating when there’s no water present. Leakage protection is another essential feature, automatically shutting off power if it detects water leaks, safeguarding against damage. Overheat protection is significant, ensuring the unit turns off if water temperature exceeds set limits, reducing scalding risks. Consider heaters with an IPX4 waterproof rating for installation in humid areas like bathrooms and kitchens. Advanced options may include automatic fault diagnosis, providing error codes for easy troubleshooting, enhancing convenience and maintenance in your daily life.