Top 6 Best Electric Tankless Water Heaters for Cold Climates Reviews 2022

If you live in the highest northern parts where water is freezing and suffer from the cold due to a hard water bath, the best electric tankless water heater for cold climates could be your best need.

A tankless water heater is not a machine that provides you with hot water, and it’s enough. But there are many other factors you need to consider, including warranty, design, installation process, and price.

At a Glance:

Furthermore, people get overwhelmed due to the many choices available in the market, and choosing an electric tankless water heater in a cold climate becomes confusing.

Don’t worry, down in this post; we provided a complete review on the top 6 electric tankless water heater products that could be a perfect match in cold climates. Furthermore, a buying guide could help you to narrow down your choice.

Topic 6 tankless water heaters are reviewed here, but if you are in a hurry, you can check our top picks at a glance! And if you want the best hot water system for cold climates you should choose these products!

Our Recommendations for Best Electric Tankless Water Heaters for Cold Climates

AwardDesignTankless Water HeaterRetailer
Top Rated Tankless Water Heater Cold Climate
Best PickEcosmart ECO 36kw
Check Price
Small Size Tankless Water Heater Cold Climate
Staff PickBosch Electric Mini
Check Price
Outdoor Tankless Water Heater Cold Climate
Budget PickStiebel Eltron 8 GPM
Check Price
Best Residential Electric Tankless Water Heater
Rheem 240V RTEX
Check Price
On-Demand Tankless Water Heater Cold Climate
Eemax EEM24018
Check Price
Built-in Electric Tankless Water Heater Cold Climate
Bosch Electric
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Ecosmart ECO 36kw

Top Rated Tankless Water Heater Cold Climate

Best Pick
Ecosmart-ECO-36-36kw-240V-Electric-Tankless-Water-Heater - Top Rated Tankless Water Heater Cold Climate

EcoSmart’s ECO 36 is the company’s largest tankless water heater. EcoSmart has earned a reputation as a client favorite product due to its competitive pricing. The EcoSmart ECO 36 is designed to handle the hot water requirements of a big family.

This heater can constantly produce sufficient hot water for two sinks and four showers at its highest capacity. To put it another way, unlike some heating units, it does not draw a high current and then turns off under your temperature controls. It only uses the energy you require, resulting in significant energy efficiency on your utility cost.

Typical tank heaters require a lot of room, but EcoSmart’s elegant, wall-mounted design saves floor area and is 90% smaller than a tank. The long-lasting copper and stainless steel parts are also designed to be entirely replaced if necessary.

The ECO 36 is built to handle several bathrooms and kitchens without raising a sweat as a “whole home” tankless water heater. It means that showers and dishwashers can be used simultaneously without heating units at each spout.

With the ECO 36, you’ll have complete control over your hot water. You can set it as hot as 150°F, which is an exact value rather than a range. It isn’t a machine where you can choose between “warm” and “hot” by turning a dial or pulling a lever. Instead, you can precisely manage the temperature of your water to a single degree.

The ECO 36 uses self-modulating technology to regulate its energy consumption depending on the need for hot water. As a result, the system now has an astounding 99.8% energy efficiency.

If the coming water temperature is 40°F or even less, you might assume a flow rate of 3-4 GPM in northern areas. It implies you’ll be able to perform one or two taps simultaneously, but anything more becomes difficult.

If you reside in a southern state with milder winter temperatures, you’ll get anything from 6 to 8 GPM. This will suffice for basins, baths, and dishwashers that all require hot water at the same time.

Bottom Line

You can confidently decide if the ECO 36 is the best option for your own house now that you understand more about it. We appreciate that it includes a digital display screen, a simple temperature control knob and can offer an unlimited constant flow of hot water to operate two showers at once.

Pros

  • Self-modulating technology
  • 99.8% energy efficiency
  • Supply endless hot water

Cons

  • Not best for large homes

Bosch Electric Mini

Small Size Tankless Water Heater Cold Climate

Staff Pick
Bosch Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon (ES4) Small Size Tankless Water Heater Cold Climate

The Bosch Mini-Tank is a small tankless water heater that can be installed right at the faucet. This device can be hung on the wall or tucked away beneath a sink.

This tankless heater has a primary and appealing design that can easily blend in with your home and will not occupy nearly as much space as a regular water heater. Because Bosch is known for producing high-quality products, you can be confident that this point-of-use water heater will meet your demands.

This water heater is compact and is well-designed. Its tank is lined with glass to help it endure as long as needed. It’s also covered with CFC-free foam, saving energy and having a 98 percent thermal efficiency rating.

You won’t have significant pauses between draining hot water if you have a quick recovery time. The Bosch water heater can be used in three different ways. This heater has three functions: it can fuel another water heater, be used separately at a sink, and operate as a backup for tankless water heaters.

With a 4GPM rate, this water heater is meant for usage in a single area and is not a replacement for a larger water heater used to warm bathrooms throughout a home. Because of the tiny tank, you’ll only have sufficient water for a sink or a small washing machine, but not both at the same time.

Bottom Line

This may not be the tankless heater for you if you require a lot of hot water for your entire house, but it’s also not what it’s supposed to be. This water heater is perfect for modest heating amounts of water for a basin or a quick shower. Its elegant appearance is a significant plus, as is the fact that it can simply be wall-mounted or hidden beneath a sink.

Pros

  • Provide quick hot water
  • Fits easily under a sink
  • Easy to install

Cons

  • Supply a small amount of hot water

Stiebel Eltron 8 GPM

Outdoor Tankless Water Heater Cold Climate

Budget Pick
Stiebel Eltron 8 GPM– Outdoor Tankless Water Heater Cold Climate

The Stiebel Eltron Tempra 36 Plus Tankless Electric Water Heater has several unique features that make an energy heater for small spaces now on the market.

Small, the compact shape allows it to sit behind a stove or fireplace, behind a sink, or in any other tight spot. It uses very little energy and has sophisticated control mechanisms that let you check and modify temperature and water flow. You can trust the build quality of the parts of this device because it comes from a well-known brand, Stiebel Eltron. This model is designed to endure a long time, and there will be no cold water if you choose it as your heater.

Stiebel Tempra 36 has an 8.0 GPM water flow rate from a 30° temperature increase. When your groundwater is 75°, you can adjust your thermostat to 105° and operate two showers, a basin, and a dishwasher at the same time without running out of hot water. Given that only a few places in the world experience temperatures that extreme for groundwater, another possibility is a 60° groundwater temperature for a 50° temperature change, yielding 5 GPM. Based on the high GPM rate it is considered the best tankless water heater in cold weather.

A lukewarm shower is a feature that will cut down the flow rate if you are straining the GPM limits with a rising water demand yet still expect unending hot water. It will reduce the water pressure minimally, but this will ensure that the water has time to warm up and that no one is forced to take a lukewarm shower.

This feature, which is not to be misunderstood with Advanced Water Flow Control, will automatically check the temperature of the water coming and use the necessary amount of energy to reheat it to the desired temperature.

It allows it to operate at a lower cost than competing electric whole-house tankless water heaters.

It allows you to save money on your electric bill and is considerably more efficient. In addition, it won’t cost when it relates to electricity usage thanks to its clever primary circuit. The Stiebel Eltron Tempra 36 Plus has an energy meter that enables you to regulate your energy savings and keep track of your bill. With nearly no heat loss, the 99 percent Energy Efficient rating is at the peak of its category.

Bottom Line

The Stiebel Eltron 36 has been regarded as among the most excellent whole-house electric tankless water heaters for a long time. It saves energy (15%-20% ), uses minimal space, and has a considerable temperature increase. With the Stiebel Eltron 36, You will not be dissatisfied.

Pros

  • Require very little space
  • Auto modulation
  • No need for venting

Cons

  • Not easy to install

Rheem 240V RTEX

Best Residential Electric Tankless Water Heater

Rheem 240V RTEX– Best Residential Electric Tankless Water Heater

Rheem is the largest water heater producer in the United States and Canada. The Rheem RTEX 13 is a tankless electric water heater used for a sole app or several ones. It saves 99.8% of energy and provides continuous hot water to all linked fixtures. It fits under a vanity or in a closet, and it’s also suited for use in RVs. It provides rapid and on-demand hot water for a single position or many applications.

The Rheem RTEX 13 heater has praised the energy and cost savings it provides. It saves up to 30% of your heating expenditures. It is 99.8% energy efficient and saves heating costs.

It features a low flow rate of up to 4.8 GPM, making it suitable for installation in tiny houses and RVs. It is, nevertheless, capable of working at its best when put in single bathrooms or point-of-use applications that utilize a lot of water.

The digital temperature monitor and control are very user-friendly. The temperature may be easily controlled using this method. This feature will let you sit calmly.

The heater’s modest size allows it to be installed in any area the user chooses. In a one- or two-person household, the water comes out quickly and at a consistent temperature. This heater can be put in single bathrooms in more prominent families.

Bottom Line

This high-efficiency electric tankless water heater that’s simple to set up and maintain. It not only saves energy, but it also saves a large amount of money on utility bills. In addition, this tankless heater is incredibly compact, fitting into even the narrowest of spaces.

The Rheem RTEX 13 is an excellent alternative for users searching for a small water heater that is simple to use and saves both money and energy.

Pros

  • Digital temperature control
  • Point-of-use application
  • Durable and compact design

Cons

  • Low flow rate
  • It can’t be used for various purposes at the same time

Eemax EEM24018

On-Demand Tankless Water Heater Cold Climate

Eemax EEM24018 - On-Demand Tankless Water Heater Cold Climate

The Eemax EEM24018 has earned a lot of attention and can be pretty handy in the chilly weather. It may provide hot water in a continuous stream so that you can shower or wash your hands at the same time.

You can take at least three showers or sinks at once in hot weather. If you can verify that Eemax 24018 tankless water heater is installed correctly, it will undoubtedly deliver a constant supply of hot water. It is preferable to install the product in a controlled environment. You can put it outside if you can protect it from dust, rain, freezing temperatures, direct sunshine, splashed water, and insects.

The Eemax EEM24018 Electric Tankless Water Heater is a small and lightweight appliance that can be installed practically anyplace. The sleek design won’t change the look of the room in any manner. This Tankless Water Heater, on the other hand, looks great and is undetectable no matter where you put it.

The most modern self-modulating technology available means the unit will change the amount of energy required based on the amount of hot water required.

This tankless heater has a 3.8GPM flow rate. In the winter, you’ll have enough water for one shower. In hot weather, you’ll have enough water to take two batteries at the same time.

You can adjust the temperature with digital temperature control. For example, if you want to raise the temperature by 1 degree Fahrenheit between 80 and 140 degrees Fahrenheit, you can do this easily.

Bottom Line

Overall, the Eemax EEM24018 Electric Tankless Water Heater is a trustworthy, secure, and simple to operate water heater for a home.

It’s small and blends in seamlessly with any décor. The process is done without a problem, and the installation is completed without a hassle as well. Of course, it has drawbacks, but there is no such entity as the ideal tankless water heater.

Pros

  • 5-Year warranty
  • Supply continuous water

Cons

  • Expensive
  • For small families only

Bosch Electric

Built-in Electric Tankless Water Heater Cold Climate

Bosch Electric– Built-in Electric Tankless Water Heater Cold Climate

The Bosch Electric Mini-Tank Water Heater is a little gem. Its elegant design looks excellent installed either indoors or outdoors. Plus, it comes with a built-in electronic ignition making it the ideal water heater for those who appreciate a more straightforward method of firing up their shower or bath.

This tank is 13.75 W x 13.75 H x 10.75 D in size. It uses 98% of the energy required to heat water, compared with conventional tank heaters that waste up to 65% of the energy needed to heat. In addition, we fixed the design flaws on this model for easier installation and maintenance. Finally, whereas competitors use plastic to hold these parts together, we use premium glass-lined material that can last for ten years. This will help you save water, time, and money.

As part of your bathroom, an electrical Mini Tank Water Heater is a cost-effective way to raise your water temperature. The built-in quick connector allows you to hook up the appliance with a single click, making it simple to get running straight away.

An easy-to-follow back-lit LED assembly allows you to see the water levels. A 120 VAC plug-in connection makes it super convenient, and the self-regulating digital heater ensures that it maintains the perfect temperature. The optional 1440-W heater for the 2.5-gallon tank provides continuous heat for up to six hours.

Discover our easy-to-use electric tankless water heater. It uses a premium glass-lined material to keep you from emptying the tank for a long time. It comes with everything you need for installation within 24 hours, so you can have hot water whenever you want it.

This electric water heater provides an energy-efficient way to heat water for your entire house. It’s also relatively easy to install and maintain, meaning you don’t have to worry about costly repairs or unexpected breakdowns. For example, you’ve got a cold water supply in your bathroom. You can use that to install a hot water tap that will give you warm, running water.

For those of you with a small space, this water heater is an excellent choice. With its portable design, it can be moved around your home with ease.

Bottom Line

The Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) will help you to save time by providing hot water instantly. This unit is equipped with a control panel that allows in setting the thermostat for your convenience.

This unit heats water as you use it, rather than heating it all at once for later use as traditional tanked units do. It also saves you time by not requiring you to wait for hot water to reach your tap. It is considered the best one while thinking about buying water heaters.

Pros

  • 98 % energy efficient
  • Continuous water flow
  • Premium glass-lined material is used
  • Elegant design that complements your decor

Cons

  • Short warranty period
  • Only use for a limited amount of hot water at a time

Summary for Best Electric Tankless Water Heater for Cold Climates

AwardDesignTankless Water HeaterRetailer
Top Rated Tankless Water Heater Cold Climate
Best PickEcosmart ECO 36kw
Check Price
Small Size Tankless Water Heater Cold Climate
Staff PickBosch Electric Mini
Check Price
Outdoor Tankless Water Heater Cold Climate
Budget PickStiebel Eltron 8 GPM
Check Price
Best Residential Electric Tankless Water Heater
Rheem 240V RTEX
Check Price
On-Demand Tankless Water Heater Cold Climate
Eemax EEM24018
Check Price
Built-in Electric Tankless Water Heater Cold Climate
Bosch Electric
Check Price

How to Pick A Best Electric Tankless Water Heater in Cold weather?

It is not easy to pick a heater just by analyzing its hot water production or the lowest cost; here are some factors which are necessary to keep in mind for everyone who is ready to buy a heater for the cold climate or who want to replace traditional heater with modern cold climate heaters.

Installation Spots

There are different types of heaters, including outdoor tankless water heaters and indoor tankless water heaters. Furthermore, some may want to install it on the wall depending upon the less space in their bathrooms or sink, and some may need to fix it permanently on the earth’s surface.

Finally, some people need it for the kitchen only, and others may need it in their bathroom for the shower. So, keeping in view these features, firstly select the best model which fits your needs perfectly.

For example, electric tankless water heaters for showers are made for indoor installations only. These are of sleek design and have less weight, due to which these are easy to install and handle for all people. We recommend choosing the Bosch brand or Rheem brand for the outdoor installation, which is highly versatile due to their functions and different designs.

Usage

Knowing your usage is another important factor that is helpful to narrow down your choices for this hot water machine. For example, you need to know if you use it for a shower or if you are in research to use it in your bathroom.

Some of the heaters are made for small size family, i.e., 2-3 members, and some are made for the 6-7 family members.

And if you need an instant heater, then selecting a point-of-use water heater would be a great choice.

So, firstly see your need and installation point, then select the best product for you.

Size

Sizing of tankless water heater means knowing the flow rate and hot water capacity besides measuring the tank capacity. Temperature rise is another thing to look at, which means the difference in ground value and the value you want to see for hot water production.

Flow rate is how many gallons per minute a heater can offer water. So, for example, if we say that a tankless water heater has 3GPM capacity, then it means that it offers a 1.5 GPM flow rate at the endpoints, i.e., by the shower and faucets. And similarly, if you want 60 degrees F and groundwater temperature is 120 degrees F, then the temperature rise is 60 degrees F.

However, there are some reasons why the water temperature is too low, including northern Americans. In these areas, you need the highest temperature rise.

And if you want to know how to measure tankless water heater electric size, then here is the picture and guide for you.

Protection System

Considering the protection system of a water heater is another factor to look at for everyone. For example, some heaters are shock protectors, and some of the heaters are freeze protectors. However, similar handsome products don’t guarantee the protection system at any rate. So, choose wisely and make the protection system one of the tops priorities.

Energy Efficiency

It’s about how long and at what energy fuels a tankless water heater works for you. I.e., some heaters work on low energy values and low voltages, and some of them need the highest energy values.

All the above heaters have the highest energy efficiencies and work in all environments for you.

How to Keep An Electric Tankless Water Heater Safe From Freezing?

It is common practice that an electric tankless water heater quickly freezes due to its inner material, which is made to save electricity shocks. Especially, those who live in cold climates claim this issue. But it would help if you did not end up due to freezing, and here are some tips that you can use to avoid further freezing.

Install your Heater at Warm and Dry Environment

The first step is to try installing your heater in a hot and dry environment. Next, try to establish a place where sunlight may fall easily upon the heater for some time of the day.

Drain Your Heaters

Don’t forget to drain your heater after a specific interval. And it becomes more critical when you are not using it for a particular time.

Recirculation System

Installing this system helps to warm and continue the production of hot water, which eliminates freezing chances by many percentages.

Run a Trickle of Water

To run a trickle of water is helpful to save the water from freezing and enhance the warranty time of the heater, which is another advantage.

Hence, these are the steps to avoid tankless water heater cold climate from freezing.

Frequently Asked Questions

How long does a tankless water heater work for a cold climate?

The lifespan of the tankless water heater depends upon its feature. However, a standard heater works for two decades and more.

Does an Electric Tankless Water Heater Work in a cold climate?

Tankless water heaters are the most demanding, specifically when it comes to knowing about cold climates. As compared to gas or propane heaters, these are our top recommendations.
The reason is that it works even if a slight fall in temperature occurs in a cold climate. And you don’t need to change its temperature as its automatic hot water production is its excellent quality which makes it best among many other brands.
On a similar hand, gas heaters are also preferred if you have the highest budget. The reason is that gas heaters are more perfect when it comes to know about the features. And it is stable in cold weather.

What is the best electric tankless water heater for one bathroom?

Bosch Electric Mini is best for one bathroom and small family size.

Wrapping Up

Thank you for reading the post till the end. Above is a complete detail and review of the best electric tankless water heaters for cold climates. All the products are based on the highest flow rate, highest GPM rate, durability, and low price.

These could be a perfect match no matter if you want to quickly install a heater at your home, office, or any other place. All these heaters are the best tankless water heaters for cold climates which you can install anytime for permanent and continuous hot water supply.

However, to narrow down your choice here is the detail of top picks!

  • Ecosmart ECO 36kw– Top Rated Tankless Water Heater Cold Climate, This heater is best because of the consistent and permanent hot water supply in cold climates.
  • Bosch Electric Mini-Small Size Tankless Water Heater Cold Climate, It is easy to install in small places including an RV or any wall where you can mount it smoothly.
  • Stiebel Eltron 8 GPM– Outdoor Tankless Water Heater Cold Climate, is specifically designed for the outdoor places where you need hot water during camping or a trip.

This top 6 products list and detail may guide you enough to choose a product based on your needs, place, and budget. However, if you still have any questions regarding cold-climate electric tankless water heaters, you are welcome to ask anytime. We are here 24/7 to appreciate your queries.

Have a happy hot water bath and house works!


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Bella Rose
By Bella Rose

Hello Everyone! I'm Bella Rose. I believe in spending wisely when it comes to knowing about home and kitchen appliances. Spend smartly and make your home smart.


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