| Nominal Power | 40 – 450 kW |
|---|
THERMOSTAHL MPB is a pellet burner for wood pellet with diameter 6-8 mm. Thanks to the construction with a forward burning flame, this burner will give the most effective combustion and it is easy to fit it to the most boilers on the market. The burner comes with its own controller.
The heat output of the burner can be set fixed, or can be set automatically according to the heat demand. The burner furnace is produced of fireproof stainless steel which is resistnat to temperature up to 1.150°С.
The burner comes with its own controller, which can support multiple functions and standard feeding screw of 1,5m length. The burner comes in two versions: manual cleaning and automatic cleaning by means of compressed air.
Automatic power setup
Automatic ignition and function on pellet
Automatic cleaning by compressed air
Heat refractory steel
Safety systems and automatic errod diagnosis
As an optional, the burner can be equipped with an automatic cleaning system by means of compressed ait. The system consists of an electrovalve and compression air pipes. For the function of the system an external air compressor is required (not included). The models MPB 150 and MPB 250 are standard equipped with automatic cleaning system.

Automatic power level
Central heating pump
Hot water/buffer pump
Room thermostat
Alarm signals
Multilingual menu
The boiler controller ensures the smooth and safe operation of the heating system.
Compared with most pellet burners on the market, the controller is far more extensive in terms of function, possibilities and ease of use.
The MPB burner can be installed on an existing boiler, either cast iron or steel, even on a gasification boiler.
For mounting the burner on Viadrus boiler, a full kit is offered which includes: modified door, mounting flange, cast iron elements for efficiency increase.
| Burner type | Recommended burner type | Number of elements | Boiler power VIADRUS | Fire chamber length |
| kW | buc | kW | mm | |
| – | – | 3 | 17 | 244 |
| NANI 35 | 15-20 | 4 | 20 | 339 |
| NANI 35 | 20-25 | 5 | 25 | 434 |
| NANI 35 | 24-30 | 6 | 30 | 529 |
| NANI 35 | 28-35 | 7 | 35 | 624 |
| MPB 60 | 32-40 | 8 | 40 | 719 |
| MPB 60 | 36-45 | 9 | 45 | 814 |
| MPB 60 | 40-49 | 10 | 49 | 909 |
For mounting on a different type of boiler, follow the dimensions from the table below. The fire chamber dimensions refer to natural draught boilers (the dimensions can differ with a margin of 10% from the mentioned values). If the L dimension is smaller, the H dimension must be bigger to obtain the necessary power.
If the mounting of the burner will be on a pressurized flame boiler (return flame), please contact the producer.
| Burner type | Recommended burner power | Min fire chamber dimensions | Fire tube diam. | Flange diam. | ||
| L | W | H | D | D1 | ||
| kW | mm | mm | mm | |||
| NANI 35 | 20 | 350 | 300 | 350 | 145 | 153 |
| NANI 35 / MPB 60 | 35 | 450 | 350 | 400 | 145 | 153 |
| MPB 60 | 50 | 600 | 400 | 500 | 180 | 186 |
| MPB 80 | 65 | 650 | 400 | 500 | 180 | 186 |
| MPB 80 | 80 | 700 | 500 | 500 | 180 | 186 |
| MPB 150 Pro | 100 | 900 | 600 | 600 | 204 | 210 |
| MPB 150 Pro | 120 | 1.000 | 600 | 600 | 204 | 210 |
| MPB 150 Pro | 150 | 1.100 | 600 | 700 | 204 | 210 |
| MPB 250 Pro | 200 | 1.200 | 700 | 700 | 254 | 260 |
| MPB 250 Pro | 250 | 1.300 | 800 | 800 | 254 | 260 |
| Type | NANI 35 | MPB 60 | MPB 80 | MPB 150 Pro | MPB 250 Pro | MPB 450 Pro | |
| Power | kW | 10-40 | 20-60 | 40-80 | 70-150 | 100-250 | 200-450 |
| Fuel consumption | kg ∕ h | 2-7 | 5-10 | 8-16 | 14-30 | 20-50 | 40-80 |
| Min fire chamber required LxWxH | mm | 350x300x350 | 450x350x400 | 650x400x500 | 900x600x600 | 1200x700x700 | 1500x800x800 |
| Electric supply | V/Hz | 230/50 | 230/50 | 230/50 | 230/50 | 230/50 | 230/50 |
| Energy consumption | W | 30-40 | 40-50 | 40-70 | 60-70 | 70-80 | 180-200 |
| Fuel | Wood pellet (diameter 6-8mm, ash <1%, humidity <10%) | ||||||
| Weight | kg | 14 | 20 | 23 | 45 | 53 | 120 |
| Standard feeder length | m | 1,5 | 1,5 | 1,5 | 2 | 2 | 2 |