Market Overview of solid fuel boilers

By Admin | Heating
20 May 2016

Market solid fuel boilers.How to choose?

If your main gas - foggy n solid fuel boilers Prospects for, and the current cost of diesel fuel (almost equal to the price of gasoline 95) - unreasonable costs (boiler's not a luxury but a means of heating) and electricity - the energy expensive, but stillvariable (it is, then it is switched off), then one way out - as a source of energy for heating use solid fuels - wood, wood, lignite or coal, anthracite, coke, pellets, peat briquettes.

ELECTRICITY

Tariffs for electricity supplied to residential consumers of the Moscow region from 01.01.08.Rates are inclusive of VAT (according Mosenergosbit).

index Unit.Chg. voltage ranges
BH CH-I CH-II HH
1. population (rates are inclusive of VAT)
1.1 urban population
single price (with VAT) kopecks / kWh. 205,00 205,00
rate with two-tariff metering devices (VAT)
night to 21-008-00 kopecks / kWh. 80,00 80,00
day 8-00 to 21-00 kopecks / kWh. 235,00 235,00
rate to multi-tariff metering devices
night 21-00 to 8-00 kopecks / kWh. 80,00 80,00
peak of 8-00 to 11-00;18-00 to 21-00 kopecks / kWh. 290,00 290,00
n / a peak 11-00 to 18-00 kopecks / kWh. 200,00 200,00
1.2 urban population living in houses equipped with electric stoves
-rate tariff (VAT) kopecks / kWh 154,00 154,00
rate with two-tariff metering devices (VAT)
night 21-00 to 8-00 kopecks / kWh 60,00 60,00
day 8-00 to 21-00 kopecks / kWh 176,00 176,00
rate to multi-tariff metering devices (VAT)
night 21-00 to 8-00 kopecks / kWh 60,00 60,00
peak 8-00 to 11-00;18-00 to 21-00 kopecks / kWh 203,00 203,00
n / a peak 11-00 to 18-00 kopecks / kWh.h 150,00 150,00
1.3 rural population
single price (with VAT) cop /kWh 154,00 154,00
rate with two-tariff metering devices (VAT)
night 21-00 to 8-00 kopecks / kWh 60,00 60,00
day 8-00 to 21-00 kopecks / kWh 176,00 176,00
rate to multi-tariff metering devices (VAT)
night 21-00 to 8 00 kopecks / kWh 60,00 60,00
peak 8-00 to 11-00;18-00 to 21-00 kopecks / kWh 203,00 203,00
n / a peak 11-00 to 18-00 kopecks / kWh.h 150,00 150,00

Tariffs for electricity in accordance with paragraph "Urban population" shall apply to:

  • gardening, gardening or chalet non-profit association of citizens - non-profit organizationsestablished by citizens on a voluntary basis to assist its members in addressing common social and economic problems of doing gardening and dacha farming (horticultural, gardening or chalet non-profit association);
  • non-profit association of citizens (Garage-building, garages, parking);
  • united citizens outbuildings (cellars, barns and other structures), calculated according to the general water meter;
  • contained by parishioners of religious organizations.
  • amount of electricity consumed at the common areas of residential buildings;
  • technical needs housing organizations.

NATURAL GAS

Moscow region (population) - 1304 rubles./ 1000 cubic meters(According Mosregiongaz)

LIQUEFIED GAS

(propane-butane mixture) - 12-14 rbl. / Liter.

liquid fuel (diesel oil, diesel)

  • DTL 0262 (the summer before -7S) - 20.5 -22.5 rub. / Liter
  • TDA (winter, -15 C) - 22.5- 23.5 rubles. / liter
  • TLV (winter to -35C) - 22,5- 23,5 rbl. / liter

WOOD

(birch chopped, firewood length 35 cm) - 17001900 rub. / m.(If dry wood (moisture content up to 25%) in the one cubic meter - 400 450 kg when wet - 600 700 kg.

COAL

  • RCD (coal) - 4200- 4400 rubles./ ton
  • AVS (coal) - 5900-6000 rub. / ton

PELLETS (wood pellets) - about 4.5 - 5.0 rubles. / kg (category «A» (white)). Package - polyethylene bags, polypropylene, big bags.

So, if there is no alternative, choose a solid fuel boiler.

immediately note several important points for the consumer.

FIRST - solid fuel boilers in terms of getting heatdivided into the "classical" and pyrolysis (gas generators). Well, if the traditional 'classical' boilers situation is clear, burns solid fuels - hot water (coolant) - coolant through the radiators (radiators, convectors) gives a warm room, then in the case of pyrolysis boilersin the stage of "burn solid fuels - hot water (coolant)" occur several other processes.

The study is based on the principle of gasification boiler combustion pyrolysis (or dry distillation) of fuel.The bottom line is what it is.Under the influence of high temperatures and lack of oxygen in a dry wood decomposes into volatile part - the so-called pyrolysis gas and a solid residue - charcoal (coke).The pyrolysis of wood is carried out at a temperature of 200 - 800 ° C.This process is exothermic, that is going to generate heat, thereby, incidentally, improves the heating and drying of the fuel in the boiler, and there is heating the incoming combustion air.The mixing of air with oxygen precipitated pyrolysis gas at a high temperature combustion process causes the latter, which is then used to generate heat energy.Pyrolysis boilers recommended drown as possible dry timber, then provided the boiler operating at maximum power and long battery life.

difference to the consumer is what it is.In the case of operation of the traditional "classical" solid fuel boilers solid fuel loading takes place every three to four hours in the case of pyrolysis boiler, the time between loads, unlike "classic" increased by 2 times or more.It should be noted that the pyrolysis gas from the combustion process reacts with active carbon, whereby the flue gases leaving the boiler are substantially free of harmful impurities, being for the most part, a mixture of carbon dioxide and water vapor.CO2 such boiler will emit up to 3 times less than a conventional wood and especially coal-fired boiler.Therefore Pyrolysis boilers are more environmentally friendly.Also formed during the pyrolysis combustion minimum amount of soot and ash, boiler therefore less than usual needs to be cleaned.

Note that the pyrolysis boilers are more expensive than the classic solid.

Since we touched on an important consumer issue of "manual feed" or frequency of fuel loading (which is one of the disadvantages of the operation of solid fuel boilers), it should be noted that this can be avoided by using pellet boilers working.Tell us briefly point.In such boilers, pellet feed (pellet) is carried out automatically: pellets from the tank (silo) with a screw fed to a special pellet burner.You only need to periodically fill the hopper with pellets.Agree it is more convenient.

Note: Pellets (pilety, pellets, wood pellets) are pressed waste wood production, made without the use of any chemical additives, which provides environmental cleanliness of fuel.Dimensions of wood pellets up 6-8 mm in diameter and 5-70 mm in length, depending on the quality of raw materials and production).Sold in convenient transport and storage containers.

SECOND - not all models of solid fuel boilers "omnivores", iesome manufacturers have models of boilers with a prescribed (primary) and backup views of solid fuels, eg main fuel - wood, back - brown coal, briquettes, coke or prescribed fuel - lignite, back - briquettes, coal, coke, wood.For the consumer ignorance of this moment, and continuous operation of the boiler instead of the fuel on the reserve, it can be expressed in reducing the efficiency of the boiler (its thermal capacity) and as a consequence - "nedotope 'premises.When choosing a boiler, and availability / cost to you of a fuel - pay attention to this difference.

THIRD - heat exchangers in solid fuel boilers can be made of steel or cast iron.
heat exchanger made of cast iron is heated for a long time and slowly cools down, becauseCast iron has a high thermal capacity.Cast iron heat exchangers are more durable than steel.At the same time the operation of cast iron heat exchanger, as iron is a brittle material, there is the problem of "thermal shock" (thermal shock).A large temperature difference between hot water (flow) and "the return" leads to "thermal shock", cracking and destruction of a heat exchanger, excessive cooling of the return water promotes the formation on the inner surface of the heat exchanger is chemically aggressive condensate.Therefore, manufacturers of cast iron boilers in the data sheet of the device indicates the minimum temperature of the water in the return line, and measures to increase.Pay attention to it during operation!Some companies use design solutions that eliminate hazardous iron temperature differences within the heat exchanger.

Solid fuel boilers with steel coils, unlike cast iron, are more tolerant of temperature changes.Such boilers cheaper.Worse than they iron that will burn through, corrode, which provokes the condensate formed by lowering the temperature inside the boiler below the dew point.The service life of the steel coil is dependent on the quality of steel, the thickness, the operating conditions.

FOURTH .If, nevertheless, you will soon be the main gas.In this case, in order to avoid spending money unnecessarily, buying for the current situation of solid fuel boiler and then a long-awaited blue fuel - gas, there is a way for the consumer.In the line of many manufacturers of solid fuel boilers have a combined model (dvuhtopochnye) that run on solid fuel, and then by setting the existing boiler is only suitable burner (without changing the boiler itself) can run on gas or diesel fuel.This is convenient in the future, sincewhen you are transferred to the boiler for gas and an accident (such as a gas line), you can transfer the boiler operation with solid fuel.

vast majority of solid fuel boilers foreign manufacturers of the presented in our market, so to speak produced in the domestic form, with a maximum capacity of 45-50 kW.
worth noting, however, that such indicators maximum power of solid fuel boilers, forced the immense potential consumers of our country (many regional manufacturing companies) with the ability and desire to use solid fuel for heating, to look for other ways out of the situation.In recent years, with the start of deliveries to the Russian market Austrian solid fuel boilers brand Wirbel medium and high power (up to 380 kW), the current imbalance between supply and demand will be eliminated.

Having described, in our opinion, the main important points at the approach to the selection of solid fuel boiler, proceed directly to the Review of imported solid-fuel heating appliances on the Russian market.

Browse solid fuel boilers, we have structured in a user-friendly form.
In our opinion this will be the most understandable form and serve as a navigator in the selection of solid fuel boilers.

solid fuel, primary / prescribed fuels are FIREWOOD

  • Dakon DOR D (Czech Republic) - floor steel solid fuel boilers.
    Prescribed fuel - wood (moisture content up to 35%).Reserve fuel - brown coal, briquettes, solid fuel boilers coke.
    boiler output of the model (range of options for power): Dakon DOR 32 D (capacity - 9-28 kW);Dakon DOR 45 D (capacity - 18-45 kW) ..
  • Buderus Logano G211 D (Germany) - floor pig-iron solid fuel boilers, specially designed for wood combustion (max. Wood moisture content - 20%, the length of the logs - 68cm).
    boiler output of the model (range of variants on capacity): 16 kW, 20, 25, 30, 34 kW.
  • Buderus Logano S111 D (Germany) - floor steel solid fuel boilers are designed to burn wood.
    boiler output of the model (range of options for power): Logano S111-32D (heating capacity (minimum) - 9/28 kW);Logano S111-45D (heating capacity (minimum) - 18/45 kW).
  • VIADRUS U22 D (Czech Republic) - floor pig-iron solid fuel boilers.Targeted fuel: wood (diameter 22 cm).Maybe burning coke coal.
    boiler output of the model (range of variants on capacity): power - 23.3 kW;29.1;34.9;40.7;46.5;49;58.1 kW.

should be borne in mind that the tree with 12 - 20% water content is the combustion heat of 4 kWh per 1 kg of wood, wood with 50% water content is the combustion heat of 2 kW-hr / kg wood 1.Crude wood warms a little, poorly lit, a lot of smoke and substantially reduces the service life of the boiler and chimney.The boiler output is reduced to 50% and the fuel consumption will be doubled.

solid fuel, primary / Prescribed fuel that is coal (black, brown, anthracite, coke, etc.)

  • Dakon DOR (Czech Republic) - floor steel solid fuel boilers.
    Prescribed fuel - lignite grain size of 2-3 cm. Reserve fuel - lignite diameter of 3 cm or more, briquettes, coal, coke, wood.
    boiler output of the model (range of options coppers on capacity): 5.12 kW;6-16;6-20;7-24 kW and 10-32 kW.
  • Buderus Logano G211 (Germany) - floor pig-iron solid fuel boilers.
    mainly used fuels - coke, coal, wood, pressed fuel.Attention!Brown coal is not recommended.
    boiler output of the model (range of variants on capacity): rated power coke / coal - 20/18 kW;26/24;32/30;36/34 and 42/40 kW.
  • Buderus Logano S111 (Germany) - floor steel solid fuel boilers.