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Fröling LM 980

The Fröling LM 980 is a wood boiler built for demanding commercial and industrial use. It offers fully automatic combustion of pellets, dried wood chips and green wood chips up to 50% moisture content, delivering reliable, high-efficiency performance.
Model Specs:
  • Fröling LM 980: 3.3MM BTU/hr
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LM 980 Key Features & Benefits

Engineered for large-scale performance, the Fröling LM 980 delivers reliable, high-efficiency heat for demanding applications. From advanced combustion control to user-friendly automation, every feature is designed to maximize efficiency, reduce emissions, and simplify operation.
High‑Temperature Combustion Chamber
  • Multi-layer chamber enables clean, high-efficiency burning
  • Long combustion zone ensures full fuel burnout
Hydraulic 
Moving Grate
  • Continuous fuel transport for steady combustion
  • Rust-free automatic cleaning, reducing maintenance
Multi-shell Retort & Twin‑Tunnel Vault
  • Guarantees complete burnout, especially for damp fuels
  • Horizontal flame redirection for maximum thermal efficiency
Forced Secondary 
& Tertiary Air
  • Ideal staged combustion with optimal temperature control
  • Minimized emissions and maximized efficiency
Flue Gas Recirculation (AGR)
  • Improves temperature stability, reduces NOₓ, protects refractory
  • Enhances output consistency across fuel types
Heat Exchanger Design
  • Large, easy-clean surfaces
  • Compressed air cleaning option
  • Accessible maintenance openings
Automatic Ash Removal System
  • Rake system transfers ashes to container
  • Low-dust, low-handling for operators
Control & Monitoring
  • 5.7″ color touchscreen
  • PC remote access + data logging via Fröling software

Technical Specifications

Built for high-output performance, the LM 980 is a wood chip boiler engineered to handle demanding heating needs with efficiency and precision. Below are key technical details that highlight its capacity, compatibility, and control features.
  • Output Range: 980 kw - 3.3MM BTU/hr
  • Fuel Types: Pellets, Dried Wood Chips and Green Wood Chips; handles up to 50% moisture
  • Efficiency: Up to 94.2%
  • Fuel Consumption: ~317 kg/h at nominal load
  • Emission Levels: CO ≤ 10 mg/MJ; low NOₓ (AGR available)
  • Flue Diameter: - 18" (varies by model)
  • Weight: ~ 33,000 lbs
  • Controller: SPS 4000 with 5.7″ touch display + remote visualization
  • Heat exchanger water: 631 Gallons

Why Choose the Fröling LM 980

  • Cut heating costs by 50% or more by switching from fossil fuels to locally sourced wood chip fuel
  • Meet sustainability goals and reduce your businesses carbon footprint
  • Ideal for use as commercial wood boiler and industrial applications
  • Burns a wide variety of fuels efficiently, even damp or bark-rich materials
  • Automatic ash removal and low-maintenance design
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Common Applications

Municipal Buildings, Schools, Hospitals

The LM 980 is ideal for public facilities with consistent, high heating demands. Its efficiency, low emissions, and automated ash handling make it a reliable solution for institutions focused on reducing operational costs and carbon footprint.
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Manufacturing / Sawmills using wood processing by-products

For manufacturers and sawmills, the LM 980 turns wood waste into energy, boosting sustainability while lowering fuel costs. Its ability to handle different types of fuels makes it a perfect match for by-product heating.

District Heating & Multi-Building Systems

The LM 980 excels in large-scale, centralized heating networks. With output up to 1 MW and robust control systems, it ensures consistent, efficient heating across multiple buildings or properties with minimal hands-on operation.

 Fröling Connect: Remote Monitoring

Stay in control with Fröling Connect, cloud-based boiler monitoring software that lets users adjust settings, track performance, and receive alerts from any device.
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FAQs about the Fröling LM 980

With proper maintenance, the LM 980 can last 20 years or more. Its robust construction and automated systems are built for long-term commercial use.
Yes. The LM 980 features automatic heat exchanger cleaning and ash removal systems, reducing manual maintenance and keeping performance high.
Absolutely. The LM 980 is equipped with multiple safety features, including flue gas recirculation, burn-back protection, and advanced monitoring to ensure safe, reliable operation.
Costs vary based on system size, configuration, and installation requirements. While it’s a significant investment, many projects qualify for renewable energy incentives to help offset costs.

 Downloadable Resources for the Fröling LM 980

LM 980 Brochure


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​​LM 980 Installation Instructions

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LM 980 Operating Instructions

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LM 980 Product Overview

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