The most important information

The SEM DUOPELL boiler has been designed for small boiler rooms. Another advantage of the boiler is its charging tank, which can be placed on any side, which makes it easy to fit into small boiler rooms. The boiler is designed for efficient combustion of class C wood pellets in accordance with the PN EN 303-5:2021 standard. It is equipped with a self-cleaning burner. Pellet igniter cooperating with the RTC clock, firing up and extinguishing the boiler according to the schedule, reducing the number of activities to be performed at the boiler to almost zero. Thanks to the option of connecting the ecoNET300 internet module to the boiler, you can control the boiler’s functions using a phone, tablet, or computer.

The SEM DUOPELL boiler can also be used as a wood gasification boiler. It will prove to be an ideal solution for farms that have large stocks of properly stored firewood – logs (logs) of hornbeam with a moisture content of Wc=15-20%.


Available power: 16kW

Fuel: pellets
Certificates: EcoDesign | 5th class
Energy class: A+

The most important advantages


Heat exchanger

Heat exchanger | horizontal convection channels | shelf and tubular
Effective design adapted for quick cleaning of the exchanger from the front. The construction of the boiler exchanger ensures high heat removal from the furnace.

Flue exit

On the back of the boiler | adjustable top, side with fan
The construction of the boiler has been designed in such a way that the flue exits are located at the back. The use of such a solution in the central heating boiler allows for direct discharge of the flue into the chimney.

Flue gas temperature sensor

Together with the controller, the sensor controls the flue gas temperature.

Secondary and primary air intake

Through six holes, air is drawn in for full combustion of the fuel. The amount of secondary and primary air can be adjusted with sliders.

The air intake must be completely closed when using the boiler with a feeder.


Smoke vent

It allows for effective removal of smoke from the combustion chamber, depending on the user’s needs.

The smoke vent must be completely closed when using the boiler with a feeder.


Exhaust fan

Regulated high
The exhaust fan effectively supports the natural flue gas draft in the boiler.

The air is regulated by means of an exhaust fan and a blower fan when using a boiler with a feeder.


Automatic feeder

The PLATINUM PELLET controller, based on the information received from the sensors, determines the demand for fuel and doses its appropriate amount. The fuel combustion process itself is therefore very economical, ecological and does not require additional service from the user.

Boiler control

Adjust the boiler operation and temperature in the rooms to your individual needs. The PLATINUM PELLET controller is programmed in such a way as to automate all processes related to heating your home. The owner gives the temperature he wants in the apartment, and the controller will optimize combustion in this respect. By entering the advanced settings of the controller, you can personalize each parameter. It all depends on the preferences of the user and household members!

Key Features:

One central heating mixing circuit with a room thermostat
Pump (DHW, CH, additional)
RTC clock with weekly programmer
Weather control
Winter/Summer operating mode

FuzzyLogic & PID

Optional equipment:

ecoNET 300 internet module
Control operation, monitor, compare statistics by connecting the boiler controller with the Internet module. Gain access to boiler control from a mobile phone, tablet or computer. The Internet module is not only a remote control, it is also a recording and register of the course of heating the house. Thanks to the ecoNET internet module (wired, wi-fi) you can gain control over your expenses and nothing will surprise you anymore!
Lambda probe
Room thermostat PLATINUM TOUCH (touch, wired)
Room thermostat PLATINUM TOUCH x40 (analog, wireless)
Room thermostat PLATINUM TOUCH x80 (touch, wireless)
Platinum B module (buffer operation control, two additional heating circuits, 2x pump, 2x mixer, 2x thermostat)
Platinum C module (additional two heating circuits, 2x pump, 2x mixer, 2x thermostat)

Pellet burner

Burner DW Self-cleaning – for pellets

Quick firing up of the hearth and automatic cleaning of the hearth from ashes. The burner is equipped with an automatic ceramic pellet igniter and has been designed for regular, self-cleaning of ash. The design of the burner allows you to quickly reach a high temperature of the boiler. All functions of cleaning the ash from the furnace and fuel dosing can be set according to the current needs of the user.

Key Features:

Fuel: pellets
Ecological fuel, which is pellets, also known as biomass, is made by pressing wood waste such as sawdust or shavings. This fully natural fuel turns into biodegradable ash when burned.
Ceramic pellet lighter
Forget about manually firing up the boiler. Just one click and the automatic ceramic igniter ignites the fuel fed to the burner. The automatic igniter combined with the RTC clock allows you to program the entire working week of the device. The device operation timer can be set separately for SUMMER and WINTER modes.
Automatic cleaning
The burner regularly cleans itself of ash, which reduces the need for manual cleaning to a minimum. The use of this technology prevents the combustion chamber from becoming clogged with ash, and also allows the burner itself to remain in excellent efficiency.

Boiler technical data

Nominal heat output [kW] 16
Boiler power range [kW] 4,8-16
Area that can be heated* [m2] 72-240
water capacity [L] 71
Maximum working pressure [bar] 3
Maximum operating temperature [°C] 80
Test pressure [bar] 4,5
Fuel tank capacity [L] 230
Fuel tank capacity [kg] 138
Fuel [-] pellet Φ6-8mm
Electrical connection [-] 2A; ~230V; 50Hz
Electric power consumption [W] 185
Temperature controller setting range [°C] 60-80 (every 1°C)
Chimney draft required [Pa] 18
Boiler weight [kg] 405

*A new building with very good thermal insulation was assumed for the calculations.

Certificates, class, boiler emissivity

Ecodesign (Eco Project) [-] Yes
Boiler class [-] 5
Energy class [-] A+
Seasonal emissivity of particulate matter [mg/m3] 20
Efficiency for nominal power [%] 91,0
Particulate nominal emissivity [mg/m3] 18
Efficiency for minimum power [%] 89,2
Minimum emissivity of particulates [mg/m3] 20

Boiler dimensions

A [mm] 490
B1 [mm]
B2 [mm]
C1 [mm] 1380
C2 [mm] 1260
D1 [mm] 1070
D2 [mm] 730
E [mm]
F1 [mm]
F2 [mm] 713
F3 [mm] 470
F4 [mm] 82
G1 [mm] 159
G2 [cal] 1 1/2
G3 [cal] 1 1/2
G4 [cal] 3/4
H [mm] 30

Boiler documentation

DTR manual

Technical and operational documentation for the SEM DUOPELL boiler Download

Driver Manual

PLATINUM PELLET controller manual Download

EcoDesign certificate

Boiler compliant with the requirements of the EcoDesign standard (EcoDesign) Download

Energy label

Energy class A+ Download

Product fiche in accordance with EU Regulation 2015/1187

In accordance with EU Regulation 2015/1187 supplementing Directive 2009/125/EC of the European Parliament and of the Council Download

Product sheet according to EU Regulation 2015/1189

Compliant with the Regulation of the EU Commission 2015/1189 of April 28, 2015. Download

Foreign sales

Do you have a question about your future central heating boiler?

Paweł Czepiel

Export manager
Language: Russian, English
Monday-Friday (7:00 a.m. – 3:00 p.m.)


+48 663 45 32 22
+48 85 711 94 54 ext. 17



METAL-FACH Technika Grzewcza Sp. z o.o. reserves the right to introduce changes to the technical parameters, equipment and specifications of the offered goods without prior notice.

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