Choosing an indirect heating boiler for an apartment

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Res­i­dents of apart­ment build­ings know first­hand what inter­rup­tions in hot water are. An excel­lent solu­tion is the instal­la­tion of indi­vid­ual heat­ing. But how to choose a boil­er in an apart­ment, because today there are many mod­els that work accord­ing to dif­fer­ent prin­ci­ples. It is nec­es­sary to under­stand the prin­ci­ples of work, as well as take into account the desires and capa­bil­i­ties of the own­er.

Types of heaters

Water heaters for an apart­ment come in sev­er­al options:

  • flow­ing;
  • accu­mu­la­tive;
  • indi­rect heat­ing (also can be attrib­uted to the sec­ond group).

Exter­nal­ly, all devices are sim­i­lar. They are made in a rec­tan­gu­lar or cylin­dri­cal shape. On the front side there is a tem­per­a­ture indi­ca­tor, and in some and a knob for its adjust­ment. In appear­ance, stor­age heaters are of impres­sive size, espe­cial­ly if the mod­el holds 80 liters or more. Flow­ing, on the con­trary, look more mod­est. To choose the appro­pri­ate option, you must first get acquaint­ed with each type of heat­ing devices in more detail.

Flowing

An instan­ta­neous water heater is a small device that can quick­ly raise the tem­per­a­ture of a liq­uid with­out vol­ume lim­i­ta­tion. This per­for­mance is direct­ly relat­ed to its prin­ci­ple of oper­a­tion.
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Cold water enters the unit, pass­es through the heat­ing ele­ment in the form of a flask, which allows it to be heat­ed up to 60 degrees. Such an almost instan­ta­neous effect can be achieved due to the pow­er of the inter­nal instal­la­tion, locat­ed in a small build­ing. Devices per­fect­ly cope with the task when work­ing for only one draw-off point. Oth­er­wise, the liq­uid will not be able to warm up to the desired tem­per­a­ture.

Equip­ment requires care­ful and fre­quent main­te­nance. This guar­an­tees its trou­ble-free use for sev­er­al years. In this regard, flow mod­els are an excel­lent solu­tion for short-term absence of hot water.

What to pay attention to?

The most impor­tant indi­ca­tor for this type of water heater is pow­er. It diverges in the range from 3 to 27 kW. And such instal­la­tions often require a sep­a­rate con­nec­tion from the elec­tri­cal unit. So, for exam­ple, mod­els offer­ing from 3 to 8 kW can be con­nect­ed to an ordi­nary 220V out­let. But for more pow­er­ful units, you need to use a ded­i­cat­ed 380V line.

It is also impor­tant to pay atten­tion to such an indi­ca­tor as the vol­ume of hot water pro­duced in one minute. Sim­ple equip­ment con­sum­ing 3 to 8 kW can heat 2 to 6 liters, respec­tive­ly. In this case, the time does not exceed 20 sec­onds. For per­son­al hygiene and sim­ple house­hold needs, this amount is quite enough. Decid­ing which boil­er to install should be based on the num­ber of peo­ple liv­ing in the apart­ment and their needs.

In addi­tion, before choos­ing a unit, it is advis­able to famil­iar­ize your­self with the pop­u­lar­i­ty rat­ing among the pop­u­la­tion. It is he who points to man­u­fac­tur­ers offer­ing goods with an opti­mal price / qual­i­ty ratio.

Types of installation

Such units dif­fer in the types of instal­la­tion:

  • pres­sure;
  • non-pres­sure.

The first are built into the pipeline. This allows you to alter­nate­ly car­ry out house­hold pro­ce­dures. They are most often used in apart­ment build­ings. The lat­ter are built in close prox­im­i­ty to the draw-off point. This makes them attrac­tive for mount­ing in small coun­try hous­es.

One of the main dis­ad­van­tages of such equip­ment can be safe­ly called a large pow­er con­sump­tion. To min­i­mize costs, you have to use hot water spar­ing­ly. Those who are not ready to lim­it them­selves in this mat­ter pay atten­tion to cumu­la­tive mod­els.

Cumulative

Stor­age water heaters are con­sid­ered more con­ve­nient to use. They can be of dif­fer­ent vol­umes — from 10 to 500 liters. For apart­ments, they main­ly choose mod­els up to the mark of 150 — it all depends on the num­ber of peo­ple liv­ing and their needs. Com­pared to flow-through units, such units take up more space. They can be installed on the floor or wall — depend­ing on the mod­el. Despite this, this equip­ment option is able to almost always pro­vide users with a suf­fi­cient amount of hot water.

Such devices are a cone-shaped or cubic tank with good ther­mal insu­la­tion. A heat­ing ele­ment is installed inside, with the help of which the liq­uid is heat­ed in the range from 35 to 85 degrees. At the same time, it cools down for sev­er­al days. As soon as the tem­per­a­ture drops, the automa­tion of the unit auto­mat­i­cal­ly switch­es to heat­ing. Then it turns off again. This allows you to save elec­tric­i­ty. To main­tain the set tem­per­a­ture, a ther­mo­stat is installed inside.

Also on indi­vid­ual mod­els you can find some or all addi­tion­al func­tions at once:

  • accel­er­at­ed heat­ing;
  • antibac­te­r­i­al coat­ing on the inside;
  • con­trol sys­tem in auto­mat­ic or man­u­al mode.

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It should be not­ed that such instal­la­tions pro­vide hot water to all active water points at once. The use of large tanks allows you to simul­ta­ne­ous­ly not only wash the dish­es, but even take a bath.

What to pay attention to?

So, how to choose a stor­age boil­er for an apart­ment? The first thing you need to pay atten­tion to is vol­ume. It is about him that buy­ers most­ly think for a long time. After all, it is impor­tant to cal­cu­late in such a way as to sat­is­fy the needs of all fam­i­ly mem­bers and not expe­ri­ence short­ages. At the same time, no one wants to force the unit to work in vain, because this is still an extra cost of ener­gy.

It is impor­tant to remem­ber that it takes more time to heat up a large tank. So, for exam­ple, you can raise the tem­per­a­ture to 45 degrees water in a 10-liter tank in just 15 min­utes. But the vol­ume of 100 liters will be able to warm up in 4 hours.

To cal­cu­late at least an approx­i­mate vol­ume used, you need to cal­cu­late it per per­son and mul­ti­ply it by the num­ber of indi­vid­u­als in the fam­i­ly. The tank can be 10% more or less than the result­ing fig­ure.

In addi­tion, you need to think over the instal­la­tion site in advance, because usu­al­ly such con­tain­ers are mount­ed in a bath­room or toi­let. To save space, you can opt for mod­els that are placed hor­i­zon­tal­ly. They are installed under the ceil­ing, where they do not inter­fere with any­one. There are many mod­els of var­i­ous designs on the mar­ket, allow­ing you to choose the most suit­able for the inte­ri­or.

Types of installation

Units whose vol­ume does not exceed 150 liters are usu­al­ly placed on the walls. For this, spe­cial brack­ets are pro­vid­ed on the case. Hooks are mount­ed on a ver­ti­cal sur­face, on which the appa­ra­tus is sus­pend­ed. In no case should mod­els intend­ed for hor­i­zon­tal place­ment be hung ver­ti­cal­ly and vice ver­sa. Heaters with a vol­ume exceed­ing 150 liters are placed on a hard sur­face. In this case, addi­tion­al fas­ten­ers are not pro­vid­ed. Flex­i­ble hoses are used to con­nect to the pipeline.

indirect heating

Indi­rect heat­ing sys­tems are units in which the tem­per­a­ture of the domes­tic water is increased by con­nect­ed heat­ing. It can be an autonomous heat­ing sys­tem — a gas or elec­tric boil­er. Some­times a cen­tral heat­ing sys­tem is con­nect­ed to such a device.

The device is a tank (as well as stor­age), only inside it there is a spi­ral coil through which the coolant flows. This is what heats up the water. Such sys­tems are rarely used in apart­ments.

Despite this, many peo­ple want to know how to choose an indi­rect heat­ing boil­er, because they already have a heat­ing boil­er at home. So, the first thing you need to pay atten­tion to is the inter­nal tank. It is desir­able that it be made of stain­less steel — such a water heater will last a long time. Unfor­tu­nate­ly, these units are more expen­sive than oth­ers. In addi­tion, as in the case of stor­age devices, you need to decide on the vol­ume.

It is impor­tant to remem­ber that such sys­tems require addi­tion­al finan­cial invest­ments at the time of instal­la­tion, but in the future they will def­i­nite­ly pay off, because the own­er will absolute­ly not have to pay for elec­tric­i­ty, which is con­sumed when using flow and stor­age mod­els.

There are sev­er­al main types of water heaters installed in apart­ment build­ings on the mar­ket. Each of them has its own pos­i­tive and neg­a­tive sides. The main thing is to approach the issue of choice seri­ous­ly and cal­cu­late in detail all the nuances.

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