Electric heating boilers: classification, benefits, testimonials

By Admin | Garden And Buildings / Communication
17 May 2016

Modern construction market offers an impressive variety of potential consumer of heating boilers.Accordingly, the resolution of questions of heating in the private country house or city apartment usual is no longer a "problem of the century.""Backyard" is missing one or the other type of fuel?No problem!You will always be able to find decent alternatives, one of which may be electrical heating boilers.

Content

Electric boilers in the autonomous heating systems ↑

Electric heating, undoubtedly - one of the most environmentally friendly way to "warm up" their homes and do not pollute the enviro

nment with harmful "castings".Double-circuit electric heating boilers - like personal miniboiler, because they are not only heated room, but also "give" hot water for domestic use.

Electric boiler can become the main source of heat in your abode, and "partner" for the other boilers - gas, diesel, solid.The presence in the system of another reserve unit, capable of operating on liquid or solid fuel cheap - one way to save energy.

How, in this case the heating process is carried out?

  • heated rooms of the building initially warmed up using the backup boiler;
  • electric boiler (Auto) mode maintains the desired temperature.

produced this product in wall and floor version.First power ranges from 5 to 60 kW.Devices with a capacity of more than 60 kW may only be floor.

«eats" are single-phase or three-phase network (220 and 380 respectively).To operate the equipment, consuming more than 12 kW, use a three-phase network.

Wall-mounted electric boiler
wall electric boiler: a harmonious addition to the interior, you can install it in any room

heat carrier in the boiler water acts or freezing liquid - antifreeze (of course, allowed for heating systems).

Note!Instructions equipment - extremely useful thing.Timely reading it will help you avoid embarrassing misunderstandings.

Classification electric boilers ↑

electric boilers differ between a method of heating the coolant.Their main types:

  • indirect heating: the heating element - resistance cartridge (PETN).It is installed in the tank, heat exchanger;
  • direct heating - electrode electric hot water boilers.The current passing through the water and releasing heat, heats it;
  • induction.

TENovye electric boilers ↑

The principle of operation of this equipment is based on the "transformation" of electricity into heat by means of electric heaters (tubular heaters), mounted in the tank (steel) heat exchanger.Heater heats the coolant that circulates in the heating system and the heated room.

-established control over the work of the unit carries out the control unit.Heating is controlled by the room temperature control: it responds to the lowering of the temperature signal of the need to activate the heating.Required operating pressure of the coolant is achieved by the circulation pump.Internal temperature sensor maintains the temperature of the coolant.Upon reaching the required indoor temperature values, the heating mode is turned off, and then, after a while, and turns off the circulation pump, which is carried out through the "movement" of the coolant.

Using room thermostats can save from 20% to 30% of electricity.

The main advantage of this type of boilers - no electrical contact a fuel rod and coolant, respectively, the leakage current is virtually absent, which means that along with them, you can use the emergency automation, for example, the RCD (residual current devices), etc..

Design and operation of the boiler heaters
Design and operation of electric heaters boiler

Their power does not depend on the nature of the coolant, the temperature - it varies only within the voltage fluctuation mains supply.It is easy to implement step (electronic control system) or modulating control (microprocessor control unit).

These generating sets are of course some disadvantages: limited resource heaters, and even their premature burnout is not excluded.When purchasing be sure to pay attention to the possibility of replacing them.

In addition, TEN - "the perfect place" to scale, thirsty as soon as possible to bring the device out of operation.

necessary to take measures to reduce the hardness of the water!

TENovye units - are electrical combi boilers and single-circuit devices.Turbofan electric boiler - it's heating and hot water.

Usually, because of the low weight and modest dimensions are wall-mounted version, but there are powerful floor model.

This is the most common type of electric boilers.

equipment Electrode ↑

electrode hot water electric boilers are much less common TENovyh.

heating water in them is due to the release of heat generated when a current is passed "through" heat transfer medium (wire) directly, without the involvement of "intermediaries" such as PETN.Electrolysis does not occur: the cathode and anode are constantly changing places (50 Hz).Ion oscillations occur with the release of energy, which the coolant has successfully absorbed.

Electric heating boiler that operates on the principle that allows you to save up to 40% of electricity.

Dry running can damage the unit;deposition of scale does not cause destruction of the electrodes: can only decrease the boiler output.

Dimensions compact ionization chamber - heat transfer fluid is heated almost instantly;pressure increases, reaching a desired value without such support mechanisms as the circulation pump.

type electrode boiler has a high (96%) efficiency, reliable and durable.

equipment Disadvantages:

  • inability to connect to the network through the RCD;
  • coolant can serve only specific, designated by the manufacturer, antifreeze;

Electric boilers on resistive and inductive elements ↑

Such boilers - some exotics.Resistive heating is somewhat reminiscent of the electrode, but it has a number of advantages, in particular, it allows you to work with any coolants.Thermal barrier (heating layer - base) is absent, respectively, it is possible to optimize the model capabilities while reducing its power consumption.

The resistive boilers fuel element is evenly distributed over the surface of the heater - it is not in contact with the coolant.It is made of a metal pipe with an insulation layer, on which a helical resistance layer (preferably tungsten).The electrical current flow heating capacity (tube), warm and coolant.

Installation of an electric boiler wall
electric boiler installation is much easier to install than other heating equipment

boilers, which implemented the principle of electromagnetic induction, it is also worthy of consumer attention.This setup is similar to a transformer, consisting of two circuits design.Primary circuit - magnetic system and the secondary - heat exchanger.There, under the influence of the alternating field, induced currents, causing heating, which subsequently transferred to the heat carrier.The main advantages of induction boilers - electrical work with virtually all coolants.

Among the shortcomings - a rather high price, a lot of weight, impressive dimensions.

How to calculate the required capacity of the boiler?↑

You can use the basic equation: for every 10 m² room (with a ceiling height of about 3m) requires about 1 kW.Although, it should be noted, this formula is approximate, because apart from the height of the ceilings and the area to determine the required power affects the mass of related factors: the materials used in the construction of the house;the building is insulated;number of windows, the size of the add;region of residence.

Purchase and operation: everything is relative ↑

consider gradually all costs that are "cause" you purchase, installation and operation of electrical unit and compare this type of heating equipment with other proposals on the construction market.

Electrical or gas?↑

The fact that gas is cheaper than electricity, as they say, is clear and a hedgehog.If close to the building (the house) is a natural gas pipeline, the choice becomes obvious.But remember that in addition to the cost of energy, there are still many aspects that need to be taken into account:

  • cost of equipment - "average" gas cheaper analog electric boiler;
  • cost of installation - installation of electrical equipment and much cheaper;
  • electrical device structurally simpler and does not require, unlike gas, constant maintenance;

electricity or liquid fuels?↑

cost of electricians, of course, somewhat higher than the cost of fuel oil.In the case of electric boiler, you will need only the boiler itself, while a liquid fuel will have to buy more and more "accessories."As for installation, maintenance and design features, are all similar to the gas unit.

Enabling electric boiler
Enabling electric boiler

electricity or solid fuels?↑

Automatic operation, easy to maintain the required comfort temperature - the main advantages of electric boilers to solid-fuel counterparts.

Sharing electric and solid fuel boiler - are quite common "union".

Electric boilers - reviews ↑

Most people refuse electric boilers for obvious reasons.Firstly, space electricity bills.Second, network disruptions.

At the same time, users will notice a lot of indisputable advantages of this equipment:

  • low price;
  • ease;
  • compactness;
  • ease of installation;
  • saves space in the room;
  • ease of use;
  • is not necessary to install a chimney;
  • not require special care, cleaning;
  • silent;
  • not create extraneous odors;
  • no harmful emissions.

weigh the "pros" and "cons", you will definitely be able to find a suitable home for the monastery type of heating that would fully meet all your needs, and most importantly - financial opportunities.