Pellet boilers: advantages of similar boilers, rating and reviews of homeowners

Pellet boilers are gaining popularity in the modern market

Pellet boilers are gaining popularity in the modern market

Pellet (pellet) boilers belong to the class of solid fuel equipment and are becoming more and more popular, confidently occupying their niche in the market. They were named according to the type of fuel used – pellets, which are compact woodworking waste compressed into granules: sawdust and small shavings..

Large tank solid fuel boiler

Large tank solid fuel boiler

Why are they in demand

The demand for pellet boilers and the increasing demand for them is explained by several reasons.

  • The lack of centralized heating lines in the regions encourages residents to look for the most effective alternatives, focusing on autonomous heating systems.

Most often, the boiler is installed in a separate room or outside the building.

Most often, the boiler is installed in a separate room or outside the building.

Viessmann is a brand that produces heating, cooling and industrial systems for various types of buildings and structures.

Viessmann is a brand that produces heating, cooling and industrial systems for various types of buildings and structures.

  • During the period of price increases, it is natural for people to want to save money, and heating with pellet sawdust is profitable.
  • The coefficient of performance (efficiency) of pellet boilers is out of competition – 90-95%.
  • Improved models are constantly emerging, which are easier to maintain and the cost is lower..

High efficiency is one of the main advantages of pellet boilers

High efficiency is one of the main advantages of pellet boilers

Views

It is customary to classify boilers according to several criteria: type of fuel, degree of automation, power, design differences..

For fuel raw materials, structures are:

  1. Powered exclusively on pellets.
  2. Conditionally combined – sometimes (but not on a regular basis) you can use firewood or briquettes in them.
  3. Combined – they have several furnaces, they work both on pellets and on other solid fuel raw materials: briquettes, coal, wood.

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By the level of automation of the fuel supply, the devices are divided as follows:

  1. automatic;
  2. semi-automatic;
  3. mechanical.

In the latter case, the owners need to put the pellets into the firebox manually as they burn out..

Valday 22M2 with combined system

Valdai 22M2 with a combined system

Per-Eko KSRM 17

Per-Eko KSRM 17

On a note! The power of different units varies from 10 kW to 2 MW. Usually, equipment is purchased at the rate of 1 kW of heat generated per 10 sq. m of floor space.

Theoretically, for heating a building of 100 sq. m, a boiler with a capacity of at least 10 kW is required, but other factors should be taken into account – the height of the ceilings, the number of windows, the degree of insulation of the building. Experts advise buying a boiler with a power reserve.

A wide range will allow you to choose the most suitable model

A wide range will allow you to choose the most suitable model

Structure and principle of operation

The pellet boiler consists of the following parts:

  1. bunker (capacity up to 200 kg), into which pellets are poured and from where they are fed to the combustion section;
  2. furnaces with a burner;
  3. a heat exchanger where the coolant heats up and from where it goes through the pipes further;
  4. chimney.

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The body is made of cast iron or steel, it does not heat up, which ensures the safety of others. Designs equipped with automatic pellet feeding devices and temperature control have gained great popularity – they are more expensive, but attract buyers by reducing labor costs for their maintenance.

Fuel specificity

The consumer has the opportunity to purchase two types of pellets:

  • white, in the production of which wood wastes that do not contain bark were used;
  • gray – pressed from sawdust with bark.

Pellets differ in color and composition

Pellets differ in color and composition

The price for white ones is higher, since before the pressing stage, the wood residues are carefully sieved, there is no sand in them. Some boilers (for example, made in Germany) can only operate on high-quality raw materials, and when filled with gray granules, they clog and fade..

Important! Boilers of Polish and Russian firms are less demanding on the quality of raw materials. Granules are sold in bags of 20-30 kg, about 4-5 tons are required for the heating season..

Sawdust or other agricultural waste compressed into granules is a type of biofuel

Sawdust or other agricultural waste compressed into granules – one of the varieties of biofuel

The drier the pellets, the higher the efficiency

The drier the pellets, the higher the efficiency

pros

The pellet boilers have enough advantages; in terms of the totality of their positive qualities, there is practically no alternative to them in areas where there is no natural gas supply. Their advantages:

  • environmental friendliness;

Compact placement of solid-state boilers

Compact placement of solid-state boilers

  • safety – installation does not require approval from the supervisory authorities;
  • heating with pellets is cheaper than with liquid fuel or electricity, and at the same time much more convenient than with wood;
  • autonomy – in many models, pellet fuel enters the burner automatically during the combustion of the batch: filling the 200 kg hopper gives more than 4 days of independent functioning without human intervention;
  • profitability – electricity is needed only for the fan and automation;
  • there is little ash after combustion, the ash pan is cleaned no more than once a week.

In the market for modern heating systems for premises and buildings, the industrial group Viessmann from Germany remains a confident leader

In the market for modern heating systems for premises and buildings, the industrial group Viessmann from Germany remains a confident leader

Combined solid boiler

Combined solid boiler

Minuses

With all the advantages, pellet plants have a number of disadvantages:

  • the cost of the units is quite high, although devices with very affordable prices appear;
  • service requires the owners to have certain knowledge and skills in handling equipment;

Some models have a beautiful design that will help them successfully fit into your interior.

Some models have a beautiful design that will successfully fit into any interior

  • lack of service companies: given the complexity of installation manipulations and settings, this factor keeps many from buying;
  • private traders have to solve the issues of storage and storage of the seasonal stock of pellets every year – their total weight is 3.5-5 tons.

Fuel storage

Fuel storage 

Features of operation

Installation and adjustment should be carried out by qualified service technicians. Further maintenance of the boiler room by the owners (or people hired for these purposes) requires them to have knowledge and practical skills in handling the unit.

It is better to entrust the installation and adjustment of boilers to specialists.

It is better to entrust the installation and adjustment of boilers to specialists.

The setting consists in determining the optimal combustion mode for pellets-pellets entering the combustion compartment: according to the instructions, the operating temperature should not exceed +66 ºС. Upon reaching this parameter, the flame should decrease, but it is undesirable to allow complete extinction of the raw material, since the emission of smoke increases. Practical skill is required to fine-tune these processes..

Important! The ash collector is cleaned once a week, in some models – once every 1.5-2 months. Products made in Germany have a self-cleaning function – the task of the operating personnel is only to empty the ash from the container.

Rating

A rating assessment is always conditional and subjective, but it is convenient, since it represents a set of generalized information about an object. Experts often evaluate pellet models according to the country where the manufacturing plant is located. On sale there are Polish, German and Russian pellet boiler plants.

Arıkazan 23-60 kW

Arıkazan 23-60 kW

Pellet boilers are the most efficient among solid fuel boilers

Pellet boilers are the most efficient among solid fuel boilers

German samples have a large list of advantages – they are of high quality, automated, and have a self-cleaning function. The downside is their exactingness to the quality of the pellets – when filling with second-rate raw materials, they clog up and turn off.

On a note! The most famous are the Polish products of the KOSTRZEWA company – the manufacturer has produced many models of various modifications and capacities. These units are reliable, have proven themselves well in Russian operating conditions..

KOSTRZEWA has proven itself in the Russian market

KOSTRZEWA has proven itself in the Russian market

Boilers made in the Russian Federation are also in demand, they have many positive reviews from buyers. Among famous brands – Teplodar “, and experts consider ZOTA the best brand, but the cost of the latter is very high.

Teplodar Kupper PRO 36 with pellet burner APG 42

Teplodar “Kupper PRO 36” with pellet burner APG 42

Zota pellet pro

ZOTA Pellet Pro

Reviews

Feedback from homeowners who have been using pellet boiler equipment for more than two years is positive. Maintenance skills are acquired quickly – within one month, and the heating costs of a spacious 200 sq. m with hot water supply per month, on average, is less than the payment of utilities in a three-room apartment in a high-rise building.

On a note! Heating with pellets is cheaper than diesel fuel (5 times) or cheaper than electricity.

Full automation of the combustion process will make the use of the boiler very comfortable

Full automation of the combustion process will make the use of the boiler very comfortable

Pellet equipment has a number of advantages, it is economical and environmentally friendly, so the number of homeowners who prefer to install it in their own homes, in summer cottages, in cottages is growing..