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Best Electric Tankless Water Heater For Cold Climates (2024 Updated)

If you’re looking for a more efficient and cost-effective way to heat water in cold climates, an electric tankless water heater may be the perfect solution. Rather than storing hot water in a tank, electric tankless water heaters heat water on demand, providing a continuous supply of hot water without the need to constantly reheat a large tank.

Before making the switch to an electric tankless water heater in cold climates, there are several factors to consider. These include the size of your household and water usage, the availability of electricity and the climate in your area. You should also take into account the overall cost and installation of the heater and ensure it meets your needs and budget.

Are you tired of running out of hot water in the middle of a shower? Do you want to have hot water available to multiple people at once? An electric tankless water heater can provide you with endless hot water and save you energy and money in the long run. Plus, the compact design of these heaters frees up valuable space in your home. Find out more about the benefits of electric tankless water heaters for cold climates and how they can improve your daily life.

10 Best Electric Tankless Water Heater For Cold Climates

# Product Image Product Name Product Notes Check Price
1
This product is ideal for providing hot water in homes or businesses with high demand and limited space.
2
Ideal for providing endless hot water on demand, with eco-friendly technology and efficient electric heating.
3
Ideal for providing hot water with energy efficiency, self-modulating technology, and compact design.
4
This product is ideal for quickly and efficiently heating water in a residential or small commercial setting.
5
The product is ideal for providing on-demand hot water in residential or commercial properties.
6
This product is ideal for removing excess moisture and improving air quality in basements, large or medium-sized rooms, and bathrooms.
7
It is ideal for heating large indoor spaces that are connected to a natural gas supply.
8
The product is ideal for effectively cooling large indoor or outdoor spaces while using less energy and water than air conditioning.
9
Ideal for cooling and dehumidifying small to medium-sized rooms, with a built-in fan mode and easy window mount kit.
10
Ideal for keeping rooms up to 300 sq. ft. cool and comfortable, with quiet operation, remote control, dehumidifier, and easy installation.
This product is ideal for providing hot water in homes or businesses with high demand and limited space.
Ideal for providing endless hot water on demand, with eco-friendly technology and efficient electric heating.
Ideal for providing hot water with energy efficiency, self-modulating technology, and compact design.
This product is ideal for quickly and efficiently heating water in a residential or small commercial setting.
The product is ideal for providing on-demand hot water in residential or commercial properties.
This product is ideal for removing excess moisture and improving air quality in basements, large or medium-sized rooms, and bathrooms.
It is ideal for heating large indoor spaces that are connected to a natural gas supply.
The product is ideal for effectively cooling large indoor or outdoor spaces while using less energy and water than air conditioning.
Ideal for cooling and dehumidifying small to medium-sized rooms, with a built-in fan mode and easy window mount kit.
Ideal for keeping rooms up to 300 sq. ft. cool and comfortable, with quiet operation, remote control, dehumidifier, and easy installation.

1. Rheem Rtex-24 24kw 240v Electric Tankless Water Heater, Gray

The RTEX-24 is an electric tankless water heater that provides on-demand and continuous hot water to meet your needs. It comes with an easy-to-use ON/OFF dial control and adjustable digital temperature display that allows you to set the temperature to your desired level. The self-modulating power control system adjusts the power output based on the hot water demand, making it an energy-efficient option for your home.

With a 24kW power output, the RTEX-24 model can provide a flow rate of up to 5.9 gallons per minute, ensuring a steady supply of hot water for your shower, sink, or appliances. The bottom 3/4" NPT water connections ensure easy installation and compatibility with most plumbing systems. Whether you have a small or large household, this water heater is designed to meet your hot water needs.

Say goodbye to waiting for the water to heat up and hello to instant hot water with the RTEX-24. With its consistent and continuous hot water supply, you can enjoy a comfortable shower or bath without any interruptions. Upgrade your home with this reliable and efficient electric tankless water heater today!

Pros

  • Easy-to-use ON/OFF dial control and adjustable digital temperature display
  • Self-modulating power control system for energy efficiency
  • 24kW power output provides a flow rate of up to 5.9 gallons per minute
  • Bottom 3/4" NPT water connections for easy installation
  • On-demand and continuous hot water supply for your comfort

2. Stiebel Eltron Tankless Heater – Tempra 36 Plus – Electric, On Demand Hot Water, Eco, White

Enjoy an uninterrupted supply of hot water with this sleek and modern water heater. Designed to save space, it does not require any venting, making it easy to install in any location. The electronic switch ensures virtually silent operation, making it ideal for any home or office setting. With a phase-single 60 Hz, voltage of 208 V, and wattage of 27 kW, this water heater is sure to meet your hot water needs. The copper sheathed heating element is housed in a copper cylinder and is built to last. With a 7-year warranty for leakage and a 3-year warranty for parts, you can trust in the quality of this product for years to come.

Make your life more comfortable with this water heater that provides an on-demand, continuous supply of hot water. Its sleek and modern design is perfect for any space, and it does not require venting, making installation a breeze. The electronic switch ensures virtually silent operation, making it suitable for any living space. With a phase-single 60 Hz, voltage of 208 V, and wattage of 27 kW, this water heater is both efficient and reliable. The copper sheathed heating element housed in a copper cylinder guarantees a long-lasting performance. The 7-year warranty for leakage and 3-year warranty for parts give you peace of mind knowing that your investment is protected.

Upgrade your hot water system with this stylish and compact water heater. It provides an unlimited supply of hot water, which is perfect for busy households. The sleek design is space-saving and does not require any venting, making it easy to install in any location. The electronic switch ensures virtually silent operation, making it ideal for any living space. With a phase-single 60 Hz, voltage of 208 V, and wattage of 27 kW, this water heater is both powerful and efficient. The copper sheathed heating element housed in a copper cylinder is built to last. With a 7-year warranty for leakage and 3-year warranty for parts, this water heater is a reliable investment for your home or office.

Pros

  • On-demand and continuous hot water supply
  • Sleek and modern design saves space
  • No venting required
  • Virtually silent operation
  • 7-year warranty for leakage
  • 3-year warranty for parts

3. Ecosmart 18 Kw Tankless Water Heater

Introducing the ECOSMART tankless water heater from China, designed to provide hot water on-demand with the most advanced self-modulating technology available. The product is highly durable, easy to use, and comes with a lifetime warranty for residential use. With an amperage of 75 and an activation flow of 0.3 GPM, the heater can maintain a flow rate of 3.51 gallons (US) per minute at 35 F rise. The product is compatible with 2 X 40 AMP (DP) breakers and 2 X 8 AWG wire.

The ECOSMART tankless water heater can save up to 60% on water heating costs and up to 12 cubic feet of storage space. Its digital temperature control allows users to adjust the temperature in 1-degree increments, providing complete control of hot water. Never worry about running out of hot water again with the ECOSMART tankless water heater.

Pros

  • Highly durable and easy to use
  • Advanced self-modulating technology
  • Lifetime warranty for residential use
  • Can save up to 60% on water heating costs
  • Digital temperature control allows for precise adjustments
  • Saves up to 12 cubic feet of storage space

4. Smartheat Electric Water Heater: 24 Kw, Compact Design

The ECOSMART electric tankless water heater is a reliable and energy-efficient option for your home. With a lifetime warranty, you can trust that this water heater will last for years to come. With the ability to save up to 60-percent on your water heating cost, you'll be able to see significant savings on your energy bills. The patented Self Modulating Technology and design ensures that the water heater is only using the necessary amount of energy to heat the water, making it 99.8-percent energy efficient. The activation flow is 0.3 GPM, meaning you'll never have to worry about running out of hot water again. Plus, the tankless design saves valuable space in your home. Consider the ECOSMART electric tankless water heater for an energy-efficient and reliable option for your home's hot water needs.

Pros

  • Lifetime warranty
  • Saves up to 60-percent on water heating cost
  • Patented Self Modulating Technology and design
  • Activation flow of 0.3 GPM
  • 99.8-percent energy efficient
  • Never run out of hot water
  • Tankless design saves valuable space in your home

5. Rheem 18kw 240v Tankless Electric Water Heater

Upgrade your water heating system with this external digital thermostatic control with LED display that boasts an impressive accuracy of +/-1 degree. This advanced system employs self-modulation technology to adjust power output based on hot water demand, ensuring uninterrupted supply. Its copper immersion heating elements are designed for durability, and the system is field serviceable for easy maintenance. With a flow rate of up to 4.4 GPM, it can meet the needs of a small household. The installation process is simple with bottom 3/4 inch NPT water connections that are threaded for easy replacement. The digital temperature display makes it easy to monitor the temperature of your water and make any necessary adjustments.

If you're looking for a reliable, efficient, and easy-to-use water heating system, this external digital thermostatic control is an excellent choice. With its LED display and self-modulating technology, you can be sure that you'll always have hot water when you need it. And with its durable copper immersion heating elements, you won't have to worry about frequent replacements or maintenance issues. The system is also easy to install and service, making it a hassle-free solution for your water heating needs.

Pros

  • LED display with +/-1 degree accuracy
  • Self-modulating technology adjusts power output based on hot water demand
  • Durable copper immersion heating elements
  • Field serviceable for easy maintenance
  • Flow rate of up to 4.4 GPM
  • Simple installation with threaded bottom 3/4 inch NPT water connections

Cons

  • – May not be suitable for larger households with high hot water demand

6. Midea Energy Star Dehumidifier – 1500 Sq. Ft.

The Midea Dehumidifier is a powerful and efficient device that can remove up to 22 pints (30 pints 2012 DOE standard) of moisture per day, making it ideal for use in basements, bathrooms, bedrooms, offices, kitchens, cellars, or crawl spaces up to 1,500 square feet. With the ability to adjust humidity levels from 35% to 85%, it's easier than ever to maintain a healthy 45%-55% humidity range. This dehumidifier is Energy Star certified and has a low dBA output, which means it operates quietly and saves energy while keeping your home at the proper humidity level 24/7.

The Midea Dehumidifier is packed with innovative features that make it easy to use and maintain. It has an auto-restart function that limits disruption due to power outages, a turbo mode that increases fan speed for maximum moisture removal, and an auto-defrost function that prevents collected water from being frozen. Additionally, it can run on a continuous 24-hour cycle until the tank is full. The dehumidifier has a clean, modern design that will fit the style of any home, apartment, or business. It comes with 360° rotatable wheels, a digital control panel, a built-in timer to program a schedule, and handles for easy movement. When the tank is full, you can easily empty it with the included 0.8-gallon tank or connect a standard hose (not included) to the built-in socket for gravity-fed continuous draining. The washable filter preserves air quality without expensive replacement parts.

The Midea Dehumidifier comes with a 1-year warranty on parts and labor, and is manufactured by Midea, the world's largest provider of air conditioning products. This dehumidifier is Energy Star most efficient 2022 certified and has comfort mode to make it even easier to use. The dehumidifier is also easy to move, with its 360° rotatable wheels. The washable filter ensures that the air quality in your home is maintained, while the turbo mode increases the fan speed for maximum moisture removal, making it a great choice for anyone looking for a high-quality dehumidifier.

Pros

  • Powerful and efficient device removes up to 22 pints of moisture per day
  • Adjustable humidity levels from 35% to 85% for maintaining a healthy humidity range
  • Energy Star certified and operates quietly, saving energy while keeping your home at the proper humidity level
  • Packed with innovative features, including auto-restart, turbo mode, and auto-defrost
  • Clean, modern design with 360° rotatable wheels, digital control panel, and built-in timer for easy movement and scheduling
  • Easy to use and maintain with an included tank and built-in socket for gravity-fed continuous draining, and washable filter
  • 1-year warranty on parts and labor, manufactured by Midea, the world's largest provider of air conditioning products
  • Energy Star most efficient 2022 certified with comfort mode

Cons

  • – Standard hose for continuous draining not included

7. Mr. Heater F260550 Big Maxx Mhu50ng Natural Gas Unit Heater

The 50,000 BTU per hour heater is capable of heating up to 1250 sq. ft. area, making it a perfect heating solution for larger spaces. With the help of powered exhaust, the unit can be vented vertically or horizontally, depending on the requirements. The heater features an easy outside access to thermostat and A/C terminals and gas connection that simplifies the installation process.

The heater comes with a Natural Gas to Liquid Propane conversion kit and 2 angle brackets for ceiling mount, which makes it a versatile and convenient option for different setup requirements. However, it is essential to maintain a minimum 8 ft clearance from floor to base of the heater to ensure proper functioning.

The heater comes with a limited 3-year warranty on parts and burners, and a 10-year warranty on any defects in the heat exchanger. This ensures peace of mind and long-lasting performance of the product.

Pros

  • Powerful heating capacity of 50,000 BTU per hour
  • Heats up to 1250 sq. ft. area
  • Powered exhaust allows for vertical or horizontal venting
  • Easy outside access to thermostat and A/C terminals and gas connection
  • Natural Gas to Liquid Propane conversion kit and 2 angle brackets for ceiling mount included
  • 10-year warranty on any defects in the heat exchanger

Cons

  • – Minimum 8 ft clearance from floor to base of heater required

8. Hessaire Mc37m Evaporative Cooler, 3,100 Cfm, Gray

The Portable Air Conditioner is a powerful cooling system that can cool up to 950 square feet of space, making it perfect for home, patio, or workshop use. The unit is compact, measuring 38x16x24 inches, and features 4 heavy-duty locking casters, making it easy to move from one location to another. With a powerful 3,100 Cubic Feet per Minute (CFM) output, the air conditioner can quickly cool down any room. It also has 3 fan speeds and oscillating louvers that ensure even distribution, wide coverage, and comfort.

The air conditioner is easy to operate and maintain, with 3 simple rotary controls that allow the fan, pump, and oscillation motor to be controlled independently. The fan can be set to Off, Hi, Med, or Low, while the pump can be turned On or Off. The oscillation motor can also be turned On or Off to ensure even air distribution throughout the room.

The air conditioner can be filled manually or continuously. For continuous filling, simply attach a household hose with the included float adapter, eliminating the need to manually watch and fill the water tank. The unit also features 3-sided rigid high-density cooling pads for increased evaporative surface area, generating cooler air. To minimize noise and vibration, the air conditioner should be placed on a firm floor.

The Portable Air Conditioner is a corded electric unit that operates on 115 volts and consumes 250 watts of power. It is a supercharged, economical cooling system that is perfect for hot summer days. With its powerful cooling capabilities and easy-to-use controls, this air conditioner is a must-have for anyone looking to stay cool and comfortable during the summer months.

Pros

  • Powerful cooling system can cool up to 950 square feet of space
  • Compact design and heavy-duty locking casters make it easy to move from one location to another
  • 3 fan speeds and oscillating louvers ensure even distribution, wide coverage, and comfort
  • Easy to operate and maintain with 3 simple rotary controls
  • Can be filled manually or continuously with a household hose
  • Features 3-sided rigid high-density cooling pads for increased evaporative surface area, generating cooler air
  • Supercharged, economical cooling system that is perfect for hot summer days

Cons

  • – May produce some noise and vibration when in use
  • – May not be suitable for very large spaces

9. Compact Serenelife Portable Ac With Dehumidifier (6 Words)

Create a comfortable and cool atmosphere wherever you go with the SereneLife Portable Home AC. This portable AC has a power rating of 1150W and a cooling power of 12000 BTU (ASHRAE) / 7,000 BTU (SACC), effectively cooling rooms up to 450+ sq ft. The air flow is rated at 270M3/hr, which saves energy and money while providing the perfect temperature. In addition to being an air conditioner, it also functions as a dehumidifier with a moisture removal rate of 1.8 liters/hour and a fan with 3 speed settings, making it a versatile 3-in-1 appliance.

The SereneLife Portable Home AC has a sleek and free-standing design that makes it easy to carry and set up in any room, including your office, bedroom, living room, meeting room, garage, and more. With an operating noise level of only 52-56 dB, it provides a luxurious and even experience. It also comes with a remote controller and push button control panel for ultimate convenience.

This portable AC unit also features an automatic swing mode and a 24-hour timer for easy control. Setting up and maintaining the unit is also hassle-free thanks to the included exhaust kit and removable air filter. Simply install the window mount exhaust kit and exhaust hose in minutes for easy setup, and wash the removable air filter with ease for maintenance.

Pros

  • Powerful cooling capabilities for rooms up to 450+ sq ft
  • Versatile 3-in-1 appliance with AC, dehumidifier, and fan modes
  • Sleek and free-standing design that adds an aesthetic touch to any room
  • Easy-to-use remote controller and push button control panel
  • Includes automatic swing mode and 24-hour timer for convenience
  • Hassle-free setup and maintenance with included exhaust kit and removable air filter

10. Silent Cool Portable Ac – 8,000 Btu

The TOSOT Portable Air Conditioner provides powerful cooling to spaces up to 300 square feet. With an ASHRAE-rated 8,000 BTUs of cool air (5,000 BTU 2017 DOE Standard), this AC is perfect for your home office, bedroom, or living room. You can also use it as a fan and dehumidifier, capable of removing 2.3 pints (1.1L/hour) of water per hour. Drier air feels much cooler than humid air and allows your AC to work more efficiently.

Sleep peacefully through the night with the lower noise mode. You can also use the sleep function to adjust your optimal sleeping temperature while you are busy counting sheep, or activate the night mode to shut off all lights on the control panel. The TOSOT Portable Air Conditioner is easy to install. Both horizontal and vertical sliding windows can be used to install this machine. The detailed instructions in the user manual can have you set up in 15 minutes or less. The exhaust hose length could be extended from a minimum of 11.8 inches to a maximum of 58.8 inches.

The TOSOT Portable Air Conditioner features new X-Fan technology. When activated, the X-Fan will keep the fan spinning at a slow, silent speed to dry residual water in the machine and the air exhaust hose. With UL-certified, the TOSOT Portable Air Conditioner adheres to the stricter and more comprehensive certification requirements and testing, ensuring the highest safety standards for use in your home.

Pros

  • Powerful cooling for spaces up to 300 square feet
  • Three uses: Portable AC, fan, and dehumidifier
  • Easy to install with detailed instructions provided
  • New X-Fan technology helps dry residual water in the machine and the air exhaust hose
  • UL-certified for the highest safety standards

Cons

  • – Only suitable for cooling small to medium-sized rooms

Best Electric Tankless Water Heater For Cold Climates FAQs

Can an electric tankless water heater provide hot water in freezing temperatures?

Yes, an electric tankless water heater can provide hot water in freezing temperatures. However, the performance of the heater may be affected by the external temperature. When the incoming water is too cold, the heater may have to work harder to heat it up, which can cause a decrease in the flow rate of hot water. To ensure that the heater works efficiently in freezing temperatures, it's important to choose a model that has a high enough flow rate and heating capacity to meet your household's needs. Additionally, it may be helpful to insulate the pipes and water heater to prevent heat loss and maintain the temperature of the water. Overall, with proper installation and maintenance, an electric tankless water heater can be a reliable source of hot water even in freezing temperatures.

How does an electric tankless water heater perform in a cold climate compared to a traditional tank water heater?

An electric tankless water heater is a great option for those living in cold climates, as it performs better than a traditional tank water heater in terms of energy efficiency and cost-effectiveness. Traditional tank water heaters rely on a large tank to store hot water, which constantly needs to be heated to maintain a consistent temperature. This process can be very energy-intensive, especially in colder climates where the ambient temperature is lower.

Electric tankless water heaters, on the other hand, only heat water when it's needed, so there's no need for a large tank to store hot water. This means that they're much more energy-efficient, and can save you a lot of money on your energy bills. Additionally, because they don't have a tank that needs to be constantly heated, they're less likely to experience heat loss, which can be a problem in colder climates.

Overall, if you're looking for a more energy-efficient and cost-effective option for heating your water in a cold climate, an electric tankless water heater is definitely worth considering.

What are the best electric tankless water heaters for cold climates?

There are several electric tankless water heaters that are suitable for use in cold climates. One of the best options is the EcoSmart ECO 27 Electric Tankless Water Heater. This unit is designed to provide consistent hot water even in extreme weather conditions. It has a maximum flow rate of 6.5 gallons per minute, which is perfect for larger homes with multiple bathrooms.

Another great option is the Stiebel Eltron Tempra Plus 24 kW Tankless Electric Water Heater. This unit is also designed to work well in cold climates and has a maximum flow rate of 4.68 gallons per minute. It has advanced flow control technology, which ensures a steady flow of hot water, even if the demand for hot water increases suddenly.

The Rheem RTEX-18 Tankless Water Heater is another top choice for cold climates. It has a maximum flow rate of 4.4 gallons per minute and is designed to provide reliable hot water even in extreme weather conditions. It is also compact and easy to install, making it an excellent option for smaller homes or apartments.

Overall, when choosing an electric tankless water heater for cold climates, it's important to consider the size of your home and your hot water needs. Look for a unit with a high flow rate and advanced technology to ensure reliable hot water, even in the coldest weather.

What is the energy efficiency of an electric tankless water heater in cold climates?

The energy efficiency of an electric tankless water heater in cold climates depends on several factors such as the size of the unit, the ambient temperature, and the demand for hot water. Generally, electric tankless water heaters are more energy-efficient than traditional tank-style water heaters because they only heat water when it is needed, rather than continuously maintaining a large tank of hot water.

In colder climates, the efficiency of an electric tankless water heater may decrease slightly due to the cooler incoming water temperature. However, modern tankless water heaters are designed to operate efficiently even in cold climates, and some models even include features such as freeze protection to prevent damage from freezing temperatures.

To maximize the energy efficiency of an electric tankless water heater in cold climates, it is important to properly size the unit for the specific application and to ensure that it is installed correctly. Additionally, regular maintenance and cleaning can help to improve efficiency and extend the lifespan of the unit.

What size electric tankless water heater is best for a cold climate?

When it comes to choosing the best size electric tankless water heater for a cold climate, there are several factors to consider. Firstly, the size of the unit should be based on the number of people in the household and the peak hot water demand. In colder climates, larger units with higher flow rates are recommended to ensure sufficient hot water supply during peak usage periods.

Another important consideration is the incoming water temperature. In cold climates, the incoming water temperature can be significantly lower, which means that the unit needs to work harder to heat the water. Therefore, choosing a unit with a higher wattage and flow rate can help ensure that the water is heated quickly and efficiently.

Ultimately, the best size electric tankless water heater for a cold climate depends on the specific needs of the household. It is important to consult with a professional installer to determine the appropriate size based on factors such as climate, household size, and usage patterns.

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