The Stalmark Max II is a pellet-fired central heating boiler designed to heat large industrial, warehouse, manufacturing, agricultural, and public facilities. The unit is available in 150 kW and 300 kW versions, allowing it to be tailored to a building’s heat demand. The boiler is equipped with two independently operating ignition burners, ensuring stable operation even if one of them fails.
Pellet boilers
Stalmark Max IIHigh power
High power
A modern, high-output pellet-fired central heating boiler
Stalmark Max II is a high-power boiler designed to heat buildings with an area of up to 3,750 m². It is intended for use in industrial, warehouse, manufacturing, and public facilities where reliability, stable operation, and high thermal efficiency are of paramount importance. The Stalmark Max II is equipped with two independently operating ignition burners, ensuring uninterrupted operation even if one of them fails.
The boiler is available in two power variants: 150 kW and 300 kW, allowing it to be tailored to the facility’s heat demand. The unit can be retrofitted with an external feed hopper and a storage tank extension, increasing its capacity to as much as 3,400 liters*. Both the stoker and the main feeder are equipped with powerful industrial motors, designed for intensive operation under demanding conditions.
*The storage tank extension is available only for the 300 kW version
Stalmark Max II
Advantages of the boiler
- Gwarancja
- na szczelność wymiennika 60 miesięcy
- Combustion chamber
- made of 8mm sheet metal, it is resistant to extremely high temperatures
- Exhaust Fan
- the exhaust fan can be adjusted to face any direction
- Stalmark Burner
- with a self-cleaning grate made of 20mm sheet metal and a ignition function. Part of the grate is submerged in the boiler water circuit, which significantly extends the burner's service life
- Tech Company Controller
- fully touchscreen-based and intelligent controls that can be expanded with optional accessories, such as remote control via a module
Characteristics
Boiler type: with feeder
Storage tank: 150 kW - 1,000 L, 300 kW - 1,800 L
Available capacities: 150 kW, 300 kW
Ecodesign: 150 kW, 300 kW
Fuel type: wood pellets 6–8 mm
Energy efficiency: A+
Controller: ST 978 MAX
Warranty: 5 years on heat exchanger integrity
Standard equipment:
- ST 978 MAX controller supporting 5 pumps, 2 mixing valve actuators, and 2 room thermostats
- burner with self-cleaning grate, partially cooled by boiler water
- 2 independently operating igniters
- outdoor sensor
Optional equipment (additional charge):
- RS Wi-Fi module
- ST 281 room thermostat
- external fuel feeder
- hopper cover for the 300 kW version
Boiler Specifications
Stalmark Max II
| BOILER POWER [kW] | BOILER HEATING SURFACE [m2] | MAX. HEATED AREA [m2] |
|---|---|---|
| 150 | 16.7 | up to 2000 |
| 300 | 33.9 | up to 3750 |
Boiler specifications
Stalmark Max II
Swipe to view the data
| Parameter | j.m. | 150kW | 300kW |
| Nominal power | kW | 150 | 300 |
| Zakres mocy | kW | 45-150 | 90-300 |
| Power Range | m2 | 16.7 | 33.9 |
| Heating area* | m2 | do 2000 | do 3750 |
| Max. permissible operating pressure | MPa | 0,25 | 0,25 |
| Flue gas draft required | Pa | 20 | 40 |
| Disposable Bin Fuel Fill** | l | 1000 | 1800 |
| Supply water temp [min/max] | °C | 60/90 | 60/90 |
| Minimum return water temperature | °C | 45 | 45 |
| Boiler Weight | kg | 1650 | 3100 |
| Boiler Water Capacity | l | 770 | 1560 |
| Minimum chimney height | m | 8 | 8 |
| Boiler efficiency | % | 92.3 | 91.7 |
| Flue Dimensions | ∅ lub mm | 220 | 300 |
| Supply and Return Diameter (female threaded couplers) | in | 2" | 3" |
| Electrical Power Supply | V/Hz | 230/50 | 230/50 |
| Controller Power Consumption | W | 319 | 395 |
| Energy Efficiency Class | - | A+ | A+ |
| 5 class | - | tak | tak |
| Ecodesign | - | tak | tak |
*The area listed applies to a heating power requirement of 80 W/m².
Stalmark Max II
The Stalmark Max II can be retrofitted with an external feed hopper and a hopper extension, increasing its capacity to 3,400 liters (300 kW version only). The stoker and main feeder are equipped with powerful industrial motors designed for heavy-duty operation. The boiler meets Class 5 and Ecodesign requirements, making it an efficient heat source for large facilities.
