Electric boilers can be either primitive or have different operating modes, automation that will regulate heating depending on the weather, and the ability to heat cold water for taps.

Pros:

There are no requirements for the room where the boiler will be located. You can place it, for example, in the hallway.
Since nothing burns in the boiler, there is no smoke.
No installation approval is required.
The boiler is maintenance free, no cleaning or disassembly is required until it breaks down.

Cons:

In some communities, power outages are common, especially in winter when there is not enough power in the villages. You will need to provide a backup heater, such as a fireplace or gas heater.
The allocated power of the electrical network may not be enough. Usually, private households receive 15 kW of electrical power, and if the house is large and poorly insulated, heat losses may exceed this value. Plus, there are many other powerful electrical devices in the house: boilers, stoves, ovens, kettles. So, in fact, an electric boiler can heat a house whose heat loss does not exceed 10 kW, for example, a frame house with an area of up to 150 m². But it will be problematic to heat a house made of timber with an area of 200 m² .