FOCUS 20 kW pellet mini-boiler, power range (5-25 kW)

Automatic pellet mini-boiler FOCUS 20 kW

A modern, efficient heating boiler with a single-unit installation. This single unit contains everything you need to set up a complete heating system for a private home or workshop, small business, or office. Our mini boiler room includes all the elements of a single solution. It includes a pellet storage bin, automatic feeder and ignition, a control and monitoring system, internet control, a weather algorithm (the boiler automatically adjusts the coolant temperature based on the outside weather), a built-in mixing unit with an automatic 4-way valve for regulating the temperature of radiators, air convectors, or underfloor heating systems, and connections for connecting the hot water supply. By purchasing a single unit, you don't need to worry about additional automation, mixers, settings, or monitoring. A service engineer completes the installation in a single step and commissions the entire heating system for your property (radiators, underfloor heating, or air heating).

Pellet mini-boiler TM "FOCUS"« Specifically designed for residential and small business premises, small production facilities, and workshops up to 200 m² (due to maximum power and insulated facilities, the maximum effective heated area can be increased to 300 m²), while maintaining the principle of automatic operation. The emphasis during development and production was placed on the efficiency of heat removal, specifically during the operation of the system, which is based on a flare system. pellet burner working except for clean wood pellets and on ash (agro) pellets, having the function of self-cleaning of the grate and automatic ignition with flame control by its glow, automation literally sees the flame and maintains it on its own. This combination is the basis for the economic feasibility of purchasing and simple operation of equipment using commercially available fuel pellets.

The main advantages of pellet boilers FOCUS:

• built-in Internet monitoring and boiler control system, saves all information about the operation of the boiler, temperatures. Facilitates setup, helps in operation and resolving issues when contacting the service department, globally reduces false visits of the master (often just advice is enough). Remote start and stop, remote temperature control, with installed room panels - room temperature control.
• touch, intuitive control panel, friendly settings interface.
• convenient cleaning of the pellet burner, a movable grate discharges ash on its own, an optical sensor controls the actual presence of a flame, automatic pellet supply, smooth adjustment of the desired temperature and, accordingly, power, controls fuel consumption.
• well-developed convective part of the heat exchanger in combination with a highly efficient horizontal heat exchanger;
• hybrid heat exchanger (originally plate heat exchanger, working for heat extraction and in as an ash filter, and tubular), which allows you to effectively remove the infrared radiation of the burner torch;
• large ash pan size (maximum possible) especially for high ash fuel operation;
• the presence of a section of the structure (plate heat exchanger) to relieve the primary thermal stress of the flame. At the same time, the point effect of the torch on the structure of the heat exchanger is excluded. It is used to sediment heavy particles of the volatile component of the torch;
• convenient maintenance of the heat exchanger with thoughtful access through a wide hatch, horizontal cleaning, ash chamber in front of the chimney;
• the high-capacity ash pan is designed to work with boilers of the industrial series. When purchasing a complete set of equipment, FOCUS freely operates on high-ash pellets without typical operating problems for foreign boilers designed for certified pellets.
• A built-in 130-liter hopper (~70 kg of pellets) significantly simplifies the placement and connection of the boiler in small private residential spaces.
• The absence of condensation in the boiler is also guaranteed. This, in turn, increases the efficiency of the boiler on the 30% compared to a configuration without return protection and on a cold system (when the system return is below 20-30°C). As a result, there is no need to select mixing equipment and synchronize it with the boiler automation.
• DHW threaded connections (requires optional DHW temperature sensor) where a heat exchanger or indirect boiler can be connected.

Boiler design features:

• Boiler material - structural steel 09G2S:
  • wall thickness of the heat exchange part (firebox and primary heat exchanger, wells) - 6mm;
  • thickness of the outer shell of the boiler water jacket - 4mm.
  • surface area of the heat exchange part (surface + fire-tube heat exchanger) - 2.2 m²
• Thermal insulation - 50mm thick basalt mineral wool.
• Boiler casing - brushed stainless steel AISI201.
• The only sectional door on which the pellet burner is located provides access not only for servicing the burner itself, but also for servicing the heat exchanger and general inspection.
• Adjustable hinges and locks to fine-tune the tight fit of the door to the opening.
• Possibility of changing the side of the door opening.
• Hybrid plate and fire tube heat exchanger.
• Large ash pan designed for several days of continuous operation at medium and above average power.
• A built-in hopper with a top hinged lid on pneumatic shock absorbers - convenient loading, a capacity of 70 kg pellets for working at least a day at maximum power.

 Features of the operation of the complex based on pellet burner FOCUS

The built-in pellet burner TM "FOCUS", included in this set of equipment, will work both on clean wood pellets and on agricultural pellets with an ash content of up to 10%. In this case, fuel pellets from sunflower waste, corn, buckwheat, rice, furniture waste and straw can be used without restrictions.

Pellet monoblock boiler FOCUS 20 is the optimal solution for households and small shops, as well as remote sites.

Advantages of the built-in burner:

• automatic ignition (installed Japanese ceramic candles for contactless air ignition of pellets);
• movable mono-grate. It is used for tedding burning fuel, followed by pushing the high-ash residue into the boiler ash pan;
• auger for supplying fuel to the combustion chamber of the burner;
• built-in temperature sensor of the burner auger (safety, automation will turn off the fuel supply with the transmission of an alarm signal);
• built-in infrared flame sensor for fixing and monitoring the level of flame radiation (safety, automation records the presence and absence of a flame, using appropriate behavioral scenarios);
• selected proportions of primary and secondary air for the correct organization of fuel combustion;
• highly reliable drive of the Swiss company "Belimo" with anti-jamming protection - moves the grate;
• The combustion chamber nozzle with air purge (for models 100-150kW) performs the functions of cooling the nozzle and simultaneous heating of the secondary air. Increases the efficiency of heat generation by the burner, due to the afterburning of gases at the exit from the nozzle;
• nozzle and grate are made of stainless steel.

All models of flare burners have a "break" in the fuel supply line, ensuring the safe operation of the equipment. Using the controller, you can easily customize the operation of the equipment.

Functions and equipment

Functionality of the pellet boiler FOCUS 20 (5-25 kW):

• power regulation within 5 kW - 25 kW;
• heat exchanger surface area 2.2 m²
• 5 basic security levels;
• automatic operation: ignition, extinguishing, cleaning;
• ceramic lighter;
• low power consumption (excluding auto ignition - 40W) - can be powered by a battery and a solar panel;
• PID-regulation (the possibility of precise control of the burner using an analog control signal, including within the framework of "smart home" technology);
• movable grate for mechanical cleaning of the burner;
• pump control (hot water treatment and heating);
• work with room thermostat and internet module
• work with weather regulation.
• built-in Internet connection module with connected access to the manufacturer's server (statistics and access to settings are stored).

Pellet boiler FOCUS 20 complies with GOST32452-2013 (EN 15270:2007). A 12 month warranty is provided.

Contents of delivery:

• Solid fuel boiler FOCUS 20 kW in combination with a built-in burner;
• Built-in 125-liter pellet hopper
• Built-in 4-way mixing unit with a temperature sensor for the heating system;
• Weather sensor;
• Temperature sensor smoke gases;
• Hot water temperature sensor;
• Internet-based control system for FOCUS EcoNet devices
• Built-in screw conveyor;
• Corrugated PVC pipe - 1 m;
• pellet boiler controller;
• Documentation.

Equipment for pellet boiler rooms

Devices and modules that increase the level of autonomy of the heating system:

• room touch EcoSter regulator;
• additional temperature sensors.

Consult our specialists on the features of the deployment of heating circuits and connections.

Chimney outlet diameter

159 mm.

Requirements for the boiler room

When designing, you must adhere to the requirements:

• MDNAOP 0.001.26-96;
• DBN B.2.5-XX: 20XX;
• SNiP 2.04.05-91 "Heating, ventilation and air conditioning";
• SNiP II-35-76 "Boiler plants".

Interesting to read

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Controller