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PRO Series — Simple, Off-Grid Wood Heat
PRO 11 wood boiler, 55K BTU
Heating Capacity: Up to 1,500 ft²
Built for small homes, cabins, shops, and off-grid hydronic systems that need reliable heat without electrical power.
Model
PRO 11 · 55K BTU · Up to 1,500 ft²
$3,550
$2,48530% OFF
Shipping$604Free
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Installed in real homes and workshops
Customer Success Stories
We replaced our aging system with this MBtek wood boiler and the savings were immediate. It burns so efficiently, we're using significantly less wood to get much more consistent, powerful heat. It's transformed our monthly budget.
Slash Your Heating Bills
Maximize savings with high-efficiency automated wood chip combustion.
Product details
- Hydronic-ready
- 86% efficiency
- Durable steel build
- No electricity required
WOOD BOILER – 55K BTU (PRO 11)
Compact and efficient manual-feed biomass boiler designed for off-grid heating without electricity, delivering reliable performance with clean combustion and thermostatic control for smaller residential spaces.
Key Benefits
- Operates without electricity, ideal for off-grid systems
- Burns wood, coal, and woodchips with high efficiency
- Thermostatic air control ensures stable and efficient combustion
- Compact design fits easily in limited spaces
- Compatible with thermosiphon circulation (no pump required)
Specifications
- Heating Capacity: Up to 1,500 ft²
- Output: 55,000 BTU
- Weight: 400 lb
- Dimensions: 15" W × 22" D × 45" H
- Firebox Volume: 9 gallons
- Log Length: Up to 11"
- Fuel Type: Wood, coal, woodchips
- Origin: Made in Europe
| Heat area | Up to 1,500 ft² |
|---|---|
| Weight | 400 lb |
| Width | 15 in |
| Depth | 22 in |
| Height | 45 in |
| Firebox size | 9 gal |
| Log length | 11 in |
| Power supply | No electricity needed |
| Water flow through boiler | 2.20 GPM |
| Hydraulic resistance | Up to 1.45 PSI |
| Chimney diameter | 4.25 in |
| Fuel types | Wood, coal, and briquettes |
| Efficiency | 86% |
| Operating limits | Max 185°F water temperature; water pressure must not exceed 15 psi (safety valve required per manual) |
- Heat area
- Up to 1,500 ft²
- Weight
- 400 lb
- Width
- 15 in
- Depth
- 22 in
- Height
- 45 in
- Firebox size
- 9 gal
- Log length
- 11 in
- Power supply
- No electricity needed
- Water flow through boiler
- 2.20 GPM
- Hydraulic resistance
- Up to 1.45 PSI
- Chimney diameter
- 4.25 in
- Fuel types
- Wood, coal, and briquettes
- Efficiency
- 86%
- Operating limits
- Max 185°F water temperature; water pressure must not exceed 15 psi (safety valve required per manual)
Answers
Frequently asked questions
Is PRO a wood gasification boiler?
No — PRO is a traditional, non-gasification wood boiler. It's the simpler, lower-cost option in MBTEK's wood-boiler line, built for buyers who want reliable off-grid heat without gasification-level controls.
Does PRO need electricity?
No. PRO is the only wood boiler in MBTEK's line that runs with zero electrical draw — it needs no controller, fan, or power supply, which makes it a fit for off-grid sites or areas prone to power outages.
Can PRO burn coal or briquettes?
Yes — PRO burns wood, coal, or briquettes, giving it more fuel flexibility than MBTEK's other wood-boiler families, which are wood-only.
Which PRO model should I choose?
PRO 11 covers up to 1,500 ft², and PRO 30 covers up to 3,000 ft². Choose based on your building's heating load — final sizing should account for heat loss, insulation, and climate.
Can PRO provide domestic hot water?
Yes — PRO can supply domestic hot water alongside space heating when paired with an indirect water heater tank such as the APOLLO DHW80.
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Installation help and contact
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Our team can help with product questions, sizing guidance, and next steps.