KENDALLVILLE, INDIANA • INDUSTRIAL & COMMERCIAL FIELD SERVICE

Burner Controls.
Combustion.
Controls Modernization.

Great Northern Mechanical LLC provides specialized service for industrial and commercial boilers, burners, industrial ovens and process-heat equipment, control systems, combustion tuning, Fireye / Honeywell / Siemens platforms, CSD-1 testing, and real-world field troubleshooting.

Indiana Michigan Ohio Fireye Honeywell Siemens LMV

WHO WE ARE

Great Northern Mechanical is built around real industrial equipment, controls, and field troubleshooting.

Industrial and commercial boiler, burner, controls, and process-heat work remains the primary specialty. Great Northern Mechanical also provides residential furnace, boiler, and HVAC service in selected Southern Michigan and Northeast Indiana communities, bringing the same controls-first diagnostic approach to residential heating systems.

BURNER CONTROLS & MODERNIZATION

Modern burner controls, diagnostics, and system upgrades deserve a central role in reliable boiler operation.

Great Northern Mechanical supports burner management systems, flame safeguard platforms, panel-based troubleshooting, control rewires, interface upgrades, touchscreen replacements, and modernization of legacy burner-control equipment.

Fireye Nexus Honeywell SLATE Honeywell 7800 Siemens LMV Fireye PLC / Panel Diagnostics
Industrial control panel and burner management cabinet

CORE SERVICES

Specialized service for the equipment that keeps your operation running.

From burner failures and controls issues to tuning and documentation, Great Northern Mechanical is positioned for technical field work in boiler and process-heat environments.

Industrial boiler and burner
01

Industrial & Commercial Boiler Service

Service and troubleshooting support for industrial and commercial boilers, burners, gas trains, flame issues, controls, and operating problems.

View Industrial Boiler & Burner Service →
Burner controls and upgrade cabinet
02

Burner Controls & Upgrades

Support for burner management systems, control rewires, commissioning work, HMI upgrades, and panel-based troubleshooting.

Large industrial boiler room
03

Combustion Tuning

Combustion testing and tuning to verify safe operation, document performance, and improve burner operation.

Multiple Fulton Vantage boiler units in a commercial boiler room
04

CSD-1 & Preventive Maintenance

Routine testing, verification of safeties and interlocks, and maintenance support aimed at reliability and cleaner troubleshooting.

Industrial burner and process-heat equipment
05

Industrial Burners & Process Heat

Burner, combustion, flame-safeguard, gas-train, interlock, temperature-control, and control-system support for industrial ovens, process heaters, air make-up units, dryers, furnaces, and other burner-fired equipment.

View Industrial Ovens & Process Heat →

FEATURED CONTROLS UPGRADE

Controls modernization across leading burner platforms.

Representative control panels featuring Honeywell, Siemens, and Fireye burner-management hardware. This kind of work reflects Great Northern Mechanical's controls modernization, retrofit, and diagnostic capability.

Honeywell Honeywell burner management and control cabinet

Honeywell Controls

Burner-management and panel-based control hardware supporting field troubleshooting and upgrades.

Siemens Siemens burner management control cabinet

Siemens Controls

Siemens burner-management hardware and control-cabinet layout used in modern boiler-room applications.

Fireye Fireye Nexus control cabinet

Fireye Controls

Fireye burner-management hardware supporting modernization, service access, and diagnostics.

CONTROLS & COMBUSTION

Experience with the control platforms commonly found in modern boiler rooms.

Great Northern Mechanical focuses on the systems and components that matter most when reliability, combustion, and sequencing are on the line.

Siemens LMV Honeywell 7800 Honeywell SLATE Fireye Fireye Nexus Industrial Combustion Power Flame Maxon UDC Controls
Flame SafeguardVerify and troubleshoot sequence logic
Interlocks & LimitsTest safeties and operating controls
Gas Train & CombustionInspect, document, and tune
Panels & WiringSupport rewires, upgrades, and diagnostics
Interfaces & HMIsReplace or modernize operator interfaces and touchscreens
Older Honeywell UDC temperature controller Newer Honeywell UDC temperature controller

BOILER ROOM SYSTEMS

Support beyond the burner: fire-tube, water-tube, electric boilers, condensate systems, and pumps.

Great Northern Mechanical supports the broader boiler-room equipment that works together with the burner and controls. This includes fire-tube and water-tube boilers, electric boilers, condensate return systems, feed systems, and pump equipment.

Twin Burnham commercial fire-tube boilers

Fire-Tube Boilers

Service and troubleshooting support for industrial and commercial fire-tube boiler systems and their burner/control packages.

Industrial boiler-room systems

Water-Tube & Modular Boiler Systems

Support for larger boiler-room applications, controls, safeties, combustion systems, and related field troubleshooting.

Industrial electric boiler electrical section and heating circuits

Electric Boilers

Electrical and controls troubleshooting for electric boiler systems, including staging, control circuits, and related components.

Condensate return tank with duplex pumps and control panel

Condensate Tanks & Pumps

Support for condensate return tanks, boiler feed systems, pumps, controls, and related boiler-room auxiliary equipment.

RESIDENTIAL HEATING & HVAC • SOUTHERN MICHIGAN & NORTHEAST INDIANA

Furnace, residential boiler, and HVAC service for homeowners across Southern Michigan and Northeast Indiana.

Great Northern Mechanical also provides residential heating and HVAC service in selected Southern Michigan and Northeast Indiana communities. Services include furnace repair, no-heat troubleshooting, residential boiler and hydronic service, thermostats and controls, ignition problems, combustion and safety checks, and general residential HVAC diagnostics.

Residential Service

  • Gas furnace troubleshooting and repair
  • No-heat and intermittent-heating diagnostics
  • Residential boiler and hydronic heating service
  • Thermostats, ignition controls, safeties, and limit problems
  • Combustion testing and heating-system safety checks
  • General residential HVAC troubleshooting and service

Residential Service Area

Residential service is offered throughout selected Southern Michigan and Northeast Indiana communities, including:

Michigan: Licensed contractor. Indiana: Residential service is available in selected Northeast Indiana communities. Service availability depends on location, project scope, local requirements, and scheduling.

ABOUT GREAT NORTHERN MECHANICAL

Based in Kendallville, Indiana and serving a broader tri-state area.

Great Northern Mechanical LLC is positioned to support industrial and commercial facilities that rely on boilers, burners, combustion systems, and dependable equipment performance.

The goal is simple: diagnose problems accurately, communicate clearly, and deliver technical service with a controls-first, reliability-driven mindset.

  • Home base: Kendallville, Indiana
  • Service area: Indiana, Michigan, and Ohio
  • Primary focus: Industrial/commercial boilers, burners, combustion, controls, CSD-1, and process heat
  • Additional service: Residential furnace, boiler, and HVAC service in Southern Michigan and Northeast Indiana

CONTACT GREAT NORTHERN MECHANICAL

Need help with an industrial system—or residential heating in Southern Michigan or Northeast Indiana?

For industrial and commercial boiler, burner, process-heat, combustion, controls, or CSD-1 service—or residential furnace, boiler, and HVAC service in Southern Michigan or Northeast Indiana—contact Great Northern Mechanical directly by phone or email.

Location Kendallville, Indiana
Service Area Indiana • Michigan • Ohio