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PELLET DUO 1000 Pellet Boiler, 3400K BTU

Heating Capacity: Up to 110,000 ft²

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  • All-in-One controllerCalibrate and adjust your boiler without leaving the house
  • Energy savingDelivers heat comparable to wood, diesel, or oil
  • Certified technologyOver 65k units sold worldwide with EN 303-5 certification
  • Real-time monitoringTrack temperatures and refill needs as conditions change
  • Built for long-term reliabilityWill work flawlessly for years to come

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PELLET DUO 1000 Pellet Boiler, 3400K BTU

PELLET DUO 1000 Pellet Boiler, 3400K BTU

Total price: $65,965

MBTEK Pellet Duo Boiler

Main Features

  1. All-in-One Controller

    Calibrate and adjust your boiler without leaving the comfort of your house.

  2. Energy Saving

    Burning just 1 ton of pellets is released as much heat as: 3527lb of wood, 132L of diesel fuel, & 181L of oil.

  3. Certified Technology

    Over 65k units sold worldwide. EN 303-5 and EIN certified.

  4. Real-Time Monitoring

    Get instant feedback whenver temperatures change or feels needs to be refilled.

  5. Virtually Silent

    You won't hear it running from 10 feet away

  6. Technology you can rely on

    We offer a 10-year guarantee and sell spare parts so you can keep your equipment running long-term.

Pellet Duo boiler main features overview
Pellet Duo boiler installation example

Efficient Heating Solution

Optimized for a variety of fuels—including pellets, grains, and cherry pits—the Pellet Duo features commercial-grade construction and a 6,200 ft² capacity, offering high-performance heating solutions for both large homes and commercial properties.

Convenient Control

Enjoy convenient control with the all-in-one controller of the Pellet Duo boiler. Calibrate and adjust settings without leaving your house, ensuring optimal performance with ease.

Energy Efficient

Save energy with Pellet Duo. Burning just 1 ton of pellets releases as much heat as 3527lb of wood, 132L of diesel fuel, and 181L of oil, providing efficient heating while reducing environmental impact.

Reliable Technology

Rely on certified technology with over 65k units sold worldwide and EN 303-5 and EIN certification. Benefit from real-time monitoring, virtually silent operation, and a 10-year guarantee with spare parts available for long-term reliability.

Installed in real homes and workshops

Customer Success Stories

See how customers use MBTEK products in real projects.

Technical specifications

Product-specific specifications for the Pellet Duo 1000 boiler.

Heat 110,000 ft²
Weight 9,600 lb
Width 60 1/2 in
Depth 44 in
Height 66 in
Automatic hopper 635 gal · 3,200 lb of pellets

Technical & User Manuals

This documentation covers many of the topics of interest to end-users and maintenance staff. For any additional inquiries, contact us.

PELLET DUO - Installation Manual

Installation guide for Pellet Duo boiler setup, piping, startup, and commissioning.

PELLET DUO - Controller Manual

Controller operating instructions, settings, menus, and programming guidance.

PELLET DUO - Boiler Manual

Full Pellet Duo boiler manual covering operation, maintenance, and safety guidance.

Product details

Pellet Duo – 92% Efficiency Pellet Boiler (Ultra Commercial Capacity, Up to 2 Weeks Autonomy)

High-performance automatic pellet boiler designed for large commercial and industrial applications, delivering extreme heating capacity, extended autonomy, and multi-fuel flexibility for continuous, high-demand operation.

 

Key Benefits

  • Up to 92% efficiency for optimal heat recovery
  • 4–10 days autonomy (up to 2 weeks depending on usage)
  • Multi-fuel compatible (pellets, corn, grains, biomass)
  • Fully automatic operation with smart combustion control
  • Commercial-grade system built for large-scale installations

Large Pellet Duo FAQ

Large Pellet Duo Boiler Frequently Asked Questions

Answers for Pellet Duo 150, 300, 500, and 1000 boilers for commercial, industrial, and high-demand hydronic projects.

What is a large Pellet Duo boiler?

The large Pellet Duo models are high-output automatic pellet boilers for large hydronic heating projects. They are built for large homes, commercial buildings, farms, workshops, industrial spaces, and other high-demand heating loads.

Which large Pellet Duo model should I choose?

Use the specs table as the source of truth: Pellet Duo 150 is listed for up to 15,000 sq ft, 300 for up to 30,000 sq ft, 500 for up to 55,000 sq ft, and 1000 for up to 110,000 sq ft. Final model selection should be confirmed by heat loss, operating schedule, domestic hot water load, and MBTEK sizing review.

What buildings are large Pellet Duo boilers best for?

They fit large heated areas, multi-zone hydronic systems, shops, greenhouses, commercial spaces, industrial heat, and district-style hydronic loops. They are not typical small mechanical-room appliances, so equipment access and fuel handling should be planned early.

What fuels can large Pellet Duo boilers use?

Large Pellet Duo boilers are designed for automatic pellet operation and can also support multi-fuel biomass use such as pellets, corn, grains, and similar fuels when configured correctly. Fuel quality, moisture, ash content, and delivery logistics affect performance and maintenance.

How efficient are large Pellet Duo boilers?

Large Pellet Duo boilers are listed at up to 92% efficiency. Real performance depends on fuel quality, chimney draft, controls, return-water protection, cleaning, and how well the boiler output matches the building load.

Can a large Pellet Duo boiler provide domestic hot water?

Yes, a large Pellet Duo can support domestic hot water through an indirect tank, storage tank, or engineered hydronic design. Domestic hot water demand should be included in sizing because it can be a major load in commercial and multi-use buildings.

What installation planning is required?

Plan chimney draft, venting, combustion air, fuel storage, ash handling, equipment access, buffer or storage tanks, controls, pumps, safety devices, and local code requirements. Commercial-scale systems should be designed as a complete mechanical room, not as a single appliance swap.

Do large Pellet Duo boilers need buffer tanks?

High-demand pellet boiler systems commonly benefit from thermal storage, hydraulic separation, or a properly designed buffer strategy. Storage size depends on the load profile, zoning, boiler output, cycling target, and domestic hot water design.

How long does the hopper run between refills?

Autonomy depends on the model hopper, heating load, outdoor temperature, fuel quality, controls, and operating schedule. Use the specs table for hopper values, then size fuel storage and delivery around the actual project load.

What maintenance is required on large Pellet Duo boilers?

Maintenance includes ash removal, burner inspection, auger and feed-system checks, heat-exchanger cleaning, flue inspection, seal checks, control review, and hydronic system service. Scheduled maintenance is especially important at commercial scale.

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