The best electric boilers for heating an apartment and a house: from 3 to 70 kW

Electric boilers can become a worthy alternative to gas and solid fuel heating appliances, provided they are chosen correctly. We determine the best and most economical electric boilers from 3 to 70 kW. The article provides information on how to calculate the power of an electric boiler for heating an apartment and a house? As well as a rating with selection rules, reviews and an objective description.

Rating of the best electric boilers up to 10 kW

It is definitely worth spending a little more time choosing a boiler of the required power. Installing a device is a long term investment. A properly selected boiler will optimize the amount of electricity bills. A device with sufficient power is also a guarantee of comfort in a heated room.

The TOP of the best electric boilers up to 10 kW includes:

STOUT SEB-0001-000009 9 kW

An electric boiler for heating premises with a coverage area of ​​up to 90-95 m2 has a wall-mounted type of installation. Small size, high efficiency and quiet operation create a wide range of applications for this device. The set of equipment includes an expansion tank together with a circulation pump. The device includes a digital display and convenient controls, which makes it easy to set the room temperature, and in case of a failure, quickly return the system to operating mode. If the temperature or pressure is outside the specified ranges, an emergency shutdown of the device occurs.

Specifications	Meaning
power, kWt	9
Expansion tank volume, l	12
Heating area, m2	72
Power supply, V	380
Weight, kg	40
Country of origin	Russia

Review: “I am completely satisfied with the device. The boiler worked for two seasons, quietly, without breakdowns. It keeps the temperature well, there are two modes of operation: compact and heating, used in different seasons. I installed it myself, the instruction is not correct, but I quickly figured it out. I definitely recommend buying! ”.

Electromash EVPM-3 3 kW

The wall mounted electric boiler is suitable for small spaces that have an open heating system. Equipped with an emergency shutdown sensor and a 3.5 liter expansion tank. Three power levels are regulated using the built-in control panel. On the panel of the device there are buttons, a light indication of switching on and a temperature regulator. The device can be used independently or in conjunction with other boilers. Designed to be powered by three-phase or single-phase alternating current.

Specifications	Meaning
power, kWt	3
Expansion tank volume, l	3.5
Heating area, m2	30
Power supply, V	220/380
Weight, kg	9
Manufacturer country	Russia

Feedback: “I was looking for electric heating boilers of 220 volts, as I use in my two garages. In operation for more than a year. They do an excellent job of their function, do not take up much space, are reliable and safe. It's enough for me, especially for that kind of money. "

Protherm RAY 9 KE / 14 9 kW

The device is specialized for heating small and medium-sized premises with a closed or open heating system. Made in a modern style, there is a control panel on the front. The electric boiler is equipped with high-quality heating elements with an increased service life, a self-diagnosis concept to prevent freezing,in addition, it has overheating protection and an automatic air vent with a safety valve. The equipment can be controlled from a distance, receive information about errors and smoothly change performance.

Specifications	Meaning
power, kWt	9
Expansion tank volume, l	8
Heating area, m2	72
Power supply, V	220/380
Weight, kg	24
Manufacturer country	Slovakia

Feedback: “I have been using the boiler for 2 years now, and I have never had any problems with its operation. Convenient control, quickly heats up the batteries and keeps the temperature well. Satisfied with the quality of materials and workmanship. "

The best electric boilers up to 15 kW

Small in size and economical electric central heating boilers with a capacity of up to 15 kW can be connected either to a three-phase power source or to 220 V and can heat an area up to 120 sq. M.

The best electric boilers up to 15 kW:

EVAN C2 12 12 kW

The electric boiler has a compact size and low weight, which is powered by a three-phase network. Designed for heating warehouses, houses and apartments with an area of ​​up to 120 m. The manufacturer uses high-quality stainless steel heating elements, which extend the service life of the device. The expansion vessel is not included in the boiler delivery. The control panel is located on the front side of the case. Thanks to the stepped setting system, the temperature can be steplessly adjusted. The device has an emergency thermal switch that protects against overheating and turns off the boiler when the temperature reaches 92 ° C.

Specifications	Meaning
power, kWt	12
Expansion tank volume, l	No
Heating area, m2	120
Power supply, V	380
Weight, kg	19.5
Manufacturer country	Russia

Feedback: “I installed the boiler in my dacha and can control it remotely. Good temperature control, robust design and very economical. ”

ZOTA 12 Lux 12 kW

An electric boiler for heating a house is equipped with an automatic reaction to changes in the outside temperature, providing the most energy efficient operation. Thermal power is 12 kW and is designed for an area of ​​up to 120 m2. The appliance serves as a central or floor heating. Wall mounted, equipped with self-diagnosis and chronothermostat. The device can be controlled from a mobile phone, which is facilitated by the GSM option. Adapted for three-phase AC power supply. In the event of a breakdown, an audible alarm is provided for emergency modes.

Specifications	Meaning
power, kWt	12
Expansion tank volume, l	4
Heating area, m2	120
Power supply, V	380
Weight, kg	19
Manufacturer country	Russia

Testimonial: “For three years of operation, there was not a single breakdown. The boiler has a modern appearance, multifunctional, with sufficient power. There are 3 power levels and overheating protection. Only now I had to replace one and the heating elements, at a price of course a little expensive, but it pays for itself completely ”.

Protherm RAY 14 KE / 14 14 kW

The electric single-function heating boiler has a unique design and easy control of the heat generation process, which makes it one of the most efficient heating devices. Automation allows you to control floor heating systems, provides remote control using mobile devices. Equipped with a power of 14 kW, suitable for heating rooms up to 112 m2 with three-phase connection.It can be used independently or as a backup heat source, equipped with an 8 liter expansion tank and the necessary protection against overheating and freezing.

Specifications	Meaning
power, kWt	14
Expansion tank volume, l	8
Heating area, m2	112
Power supply, V	380
Weight, kg	25
Manufacturer country	Slovakia

Feedback: “We bought such a boiler for a summer residence, heats a small house in a few hours, we are completely satisfied with the quality and management. The price is certainly high, but its efficient and economical operation meets expectations. ”

EVAN EXPERT 12

The unique electric boiler is characterized by economical energy consumption, ease of installation and operation. The power of 12 kW is designed for a heating area of ​​up to 96 sq. Equipped with sensors that constantly monitor weather conditions, this allows the device to maintain the set temperature in the room without user intervention. The kit includes an expansion tank, a pump and an air vent. Safety is ensured by a multi-stage protection system that prevents overheating, overpressure and short circuits.

Specifications	Meaning
power, kWt	12
Expansion tank volume, l	12
Heating area, m2	96
Power supply, V	380
Weight, kg	41
Manufacturer country	Russia

Testimonial: “I use a boiler for a private house with an area of ​​120 sq. M., While I heat one floor of 60 sq. M. It is enough, it performs its function well, it is convenient to operate and install. I definitely recommend buying! ”.

TOP electric boilers for heating large houses (from 20 kW)

An electric boiler with a capacity of 20 kW or more is sufficient to heat a medium or large house with good thermal insulation and an area of ​​150 to 700 m2. In addition, the device can supplement heating with a solid fuel boiler and fireplace (then the calculated area may be higher).

The rating of the best electric boilers from 20 kW includes:

Vaillant eloBLOCK VE 21 21 kW

This device is ideal for individual heating in your own home, as well as in industrial premises with an area of ​​up to 210 sq. The electric boiler has sufficient power, which changes smoothly, which prevents overloads and can heat up a building in a few hours. The European assembly of the unit is reliable and efficient, equipped with a circulation pump, control unit, pressure sensors, and does not require additional equipment. To extend the service life of the device, the manufacturer has equipped it with protection against overheating, overpressure in the system and freezing.

Specifications	Meaning
power, kWt	21
Expansion tank volume, l	8
Heating area, m2	158
Power supply, V	380
Weight, kg	24
Manufacturer country	Germany

Testimonial: “Aesthetic and functional boiler, it is very quiet compared to my previous one and I hope it will be more efficient, I only use it for a couple of months until everything is fine.”

STOUT SEB-0001-000027 27 kW

The power range of this electric central heating boiler is from 3 to 27 kW with modulating control. Has 6 modes of operation, which allows you to maintain the room temperature set by the user or depending on weather conditions. It is enough to set the modes once. Equipped with a built-in 12 liter expansion tank and a circulation pump. The control is intuitive, for safety, an automatic shutdown is installed, an indication of emergency modes, there is also protection against sticking of the relay and against freezing.

Specifications	Meaning
power, kWt	27
Expansion tank volume, l	12
Heating area, m2	270
Power supply, V	380
Weight, kg	41
Manufacturer country	Russia

Review: “I have long wanted to buy a product that correlates well in terms of price and quality. I chose this particular model, it has modern design and functionality combined with economy. I am glad that I was not mistaken with the choice. "

REKO-70P (70 kW) 380 V

A wall-mounted electric boiler can act as the main heating device in a home or warehouse with an area of ​​up to 700 sq. m. Maintaining low operating costs, it provides high comfort of use. This model does not have a circulation pump in the kit, it provides the operation of the device and is purchased separately. The stainless steel construction allows the use of water and antifreeze as a heat carrier. For safety, it is equipped with overheating protection, the control unit provides an optimal boiler operation algorithm and prevents emergency situations.

Specifications	Meaning
power, kWt	70
Expansion tank volume, l	No
Heating area, m2	700
Power supply, V	380
Weight, kg	60
Manufacturer country	Russia

Testimonial: “I am satisfied with the boiler's flawless operation, I heat up a three-story house and have never had any problems. Economical, quiet, easy to operate. Definitely worth the money spent. Recommend!".

How to determine the required power of an electric boiler?

The choice of an electric boiler of the appropriate capacity is a key factor in determining the efficiency of the installation. At the same time, the boiler performance should not be too high. An incorrectly selected boiler can negatively affect the amount of electricity bills.

If the building is built using modern energy-saving technologies, a simple formula can be used to determine the power of the heating boiler:

building area (square meters) x room height (meters) x 30 (W / m3 ratio) / 1000

The result obtained in this way will mean the estimated heat demand of the building in kilowatts, while the minimum power of a properly selected boiler will usually be higher. For example, a house with an area of ​​120 square meters and a room height of 2.65 would require 9.54 kW (120 x 2.65 x 30/1000 = 9.54). For the given example, you should choose a single-function electric boiler with the minimum possible power, at least 15-20% higher than the calculated one.

In practice, a 12 kW boiler would be ideal. When choosing a combi boiler, heating water according to the flow principle, the minimum boiler power must be 24 kW, otherwise there will be too little hot water. Unfortunately, each case must be considered in terms of the individual needs of the user.

Tips for choosing an electric boiler

The choice of a model in terms of power and parameters depends not only on the type and size of the house, but, above all, on its need for heat. This is due to the materials from which the house was built, its insulation, geographical location and depends on the preferences of the residents. What should you pay attention to in the boiler?

• Number of heaters and boiler power: The heating element is a resistance wire in a steel casing. More heaters mean higher maximum power, but also flexibility in use and little gain in energy savings.
• Control: the main element is automation, which can react both to the temperature outside and in the control room. The second important element is a timer, which allows you to adjust the work parameters to the lifestyle of the household.
• Power supply... Small boilers are powered from the mains, and large boilers require a third phase, that is, 380 V.
• Safety system... This is a set of pressure gauge, expansion tank and safety valve. There are boilers on the market with an incomplete safety group and they need to be expanded.
• High efficiency: choose an electric boiler with high efficiency and performance.
• Quiet operation: the best electric boiler should run silently.
• Ease of service: the device should be easy to maintain or require it as little as possible.

Above are the best electric boilers in a wide range of capacities. Among them there are models that are suitable for both 2-room apartments and large cottages of 600 m2. It remains only to evaluate the tasks, calculate the required power and choose from the given boilers.