BOILER
SEMAX BASIC DUO
The most important information
The most important advantages
Heat exchanger
Effective design adapted for quick cleaning of the exchanger at the front. The construction of the boiler exchanger ensures high heat reception from the furnace.
Flue exit
The boiler structure has been designed in such a way that the flue outlets are located at the back. The use of such a solution in a central heating boiler allows the flue to be discharged directly into the chimney.
Exhaust gas temperature sensor
Secondary and primary air intake
Air intakes must be completely closed when using a boiler with a feeder.
Smoke exhaust flap
The smoke exhaust flap must be completely closed when using a boiler with a feeder.
Exhaust fan
The exhaust fan effectively supports the natural draft of exhaust gases in the boiler.
The air is regulated using an exhaust and blowing fan when using a boiler with a feeder.
Automatic feeder
Boiler control
Key Features:
Optional equipment:
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!
Mode B allows you to extend the functionality of the boiler with: two additional heating circuits, 2x pumps, 2x mixer, 2x universal thermostat, H output.
Mode C allows you to extend the functionality of the boiler with two additional heating circuits, 2x pumps, 2x mixer, 2x universal 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:
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.
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.
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
PARAMETERS | S.I. UNIT | SEMAX BASIC DUO |
Nominal heat output | [kW] | 15 |
Boiler power range | [kW] | 4,5-15 |
Area that can be heated* | [m2] | 67,5-225 |
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 |
Primary fuel | [-] | firewood, pieces |
Additional fuel | [-] | pellet Φ6-8mm |
Electrical connection | [-] | 1A; ~230V; 50Hz |
Electric power consumption | [W] | – |
Temperature controller setting range | [°C] | 60-80 (every 1°C) |
Chimney draft required | [Pa] | 17-23 |
Thermal storage tank capacity | [L] | 555 |
Boiler weight | [kg] | 342 |
*A new building with very good thermal insulation was assumed for the calculations.
PARAMETERS | S.I. UNIT | SEMAX BASIC DUO 20 |
Nominal heat output | [kW] | 20 |
Boiler power range | [kW] | 6-20 |
Area that can be heated* | [m2] | 90-300 |
Water capacity | [L] | 77 |
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 |
Primary fuel | [-] | firewood, pieces |
Additional fuel | [-] | pellet Φ6-8mm |
Electrical connection | [-] | 1A; ~230V; 50Hz |
Electric power consumption | [W] | – |
Temperature controller setting range | [°C] | 60-80 (every 1°C) |
Chimney draft required | [Pa] | 22 |
Thermal storage tank capacity | [L] | 780 |
Boiler weight | [kg] | 390 |
*A new building with very good thermal insulation was assumed for the calculations.
Certificates, class, boiler emissivity
PARAMETERS | S.I. UNIT | SEMAX BASIC 15 |
Ecodesign (Eco Project) | [-] | yes |
Boiler class | [-] | 5 |
Energy class | [-] | A+ |
Seasonal emissivity of particulate matter | [mg/m3] | 20 |
Efficiency for nominal power | [%] | 90 |
Particulate nominal emissivity | [mg/m3] | 20 |
Efficiency for minimum power | [%] | – |
Minimum emissivity of particulates | [mg/m3] | – |
PARAMETERS | S.I. UNIT | SEMAX BASIC 15 |
Ecodesign (Eco Project) | [-] | yes |
Boiler class | [-] | 5 |
Energy class | [-] | A+ |
Seasonal emissivity of particulate matter | [mg/m3] | 17 |
Efficiency for nominal power | [%] | 91,0 |
Particulate nominal emissivity | [mg/m3] | 13 |
Efficiency for minimum power | [%] | 89,0 |
Minimum emissivity of particulates | [mg/m3] | 18 |
PARAMETERS | S.I. UNIT | SEMAX BASIC 20 |
Ecodesign (Eco Project) | [-] | yes |
Boiler class | [-] | 5 |
Energy class | [-] | A+ |
Seasonal emissivity of particulate matter | [mg/m3] | 18 |
Efficiency for nominal power | [%] | 88,7 |
Particulate nominal emissivity | [mg/m3] | 17 |
Efficiency for minimum power | [%] | – |
Minimum emissivity of particulates | [mg/m3] | – |
PARAMETERS | S.I. UNIT | SEMAX BASIC DUO 20 |
Ecodesign (Eco Project) | [-] | yes |
Boiler class | [-] | 5 |
Energy class | [-] | A+ |
Seasonal emissivity of particulate matter | [mg/m3] | 19 |
Efficiency for nominal power | [%] | 91,0 |
Particulate nominal emissivity | [mg/m3] | 16 |
Efficiency for minimum power | [%] | 90,0 |
Minimum emissivity of particulates | [mg/m3] | 20 |
Boiler dimensions
DIMENSION | S.I. UNIT | SEMAX BASIC DUO 15 |
A | [mm] | 1135 |
B1 | [mm] | 490 |
B2 | [mm] | 605 |
C1 | [mm] | 1275 |
C2 | [mm] | 1255 |
D1 | [mm] | 1352 |
D2 | [mm] | 725 |
E | [mm] | 605 |
F1 | [mm] | 1050 |
F2 | [mm] | 713 |
F3 | [mm] | 80 |
F4 | [mm] | 448 |
G1 | [mm] | 159 |
G2 | [cal] | 3/4 |
G3 | [cal] | 1 1/2 |
G4 | [cal] | 1 1/2 |
H | [mm] | 30 |
X | [mm] | 290 |
Y | [mm] | 515 |
Z | [mm] | 345 |
Loading hole | [mm] | 290×200 |
DIMENSION | S.I. UNIT | SEMAX BASIC DUO 20 |
A | [mm] | 1135 |
B1 | [mm] | 520 |
B2 | [mm] | 605 |
C1 | [mm] | 1275 |
C2 | [mm] | 1255 |
D1 | [mm] | 1452 |
D2 | [mm] | 835 |
E | [mm] | 605 |
F1 | [mm] | 1050 |
F2 | [mm] | 713 |
F3 | [mm] | 80 |
F4 | [mm] | 455 |
G1 | [mm] | 159 |
G2 | [cal] | 3/4 |
G3 | [cal] | 1 1/2 |
G4 | [cal] | 1 1/2 |
H | [mm] | 30 |
X | [mm] | 290 |
Y | [mm] | 515 |
Z | [mm] | 445 |
Loading hole | [mm] | 290×200 |
Boiler documentation
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