Indeck Heat Recovery Steam Generators

Industry Leading Multiple Pressure Reheat Design

I-HRSG – The solution for efficient reliable steam generation…

The combined cycle plant is a popular choice to meet the world’s power generation needs.  The use of Indeck’s Steam Generators to recover heat from gas turbine exhaust is vital for maximum performance, higher efficiency, and greater cost effectiveness.

Since 1840, industry and utilities have turned to the Indeck brands for efficient steam solutions.  Indeck’s HRSG engineering expertise provides design features to maximize availability.

Large Utility Combine Cycle Power Plant

Indeck HRSG large combined cycle power plant

(click on the image to enlarge)

I-HRSG Optimized Design for Modern Plant Requirements

Cycling Design and Rapid Startup Features…Cycling Design and Rapid Startup Features

  • Oversized drains to quickly remove condensate from Superheaters and Reheaters
  • Quick acting desuperheater spray water isolation valves
  • Extensive use of alloys to minimize thermal stresses
  • Seamless superheater tubes
  • Available full penetration welds in critical locations
  • No shared economizer headers between pressure levels
  • Thermal shock resistant economizer inlet harps
  • Fully vented and drainable economizers
  • FAC (Flow Assisted Corrosion) mitigation with alloy materials
  • Extended mobility stainless steel bellows on lower casing piping penetrations
  • Transient rated primary steam separation technology
  • Sparging systems for hot standby
  • Insulated stack dampers with rain gutter

I-HRSG Designed for Superior Performance and Advanced Operations

Click to enlarge

  • Modularized components for reduced field man-hours
  • Proven design for turbine discharge ducts
  • Full fillet welded liner support stud system
  • Experienced CFD exhaust gas path modeling
  • Heating surface baffle system prevents flue gas bypassing
  • Multi-point natural circulation system modeling


I-HRSG Maintenance and Inspection FeaturesClick to enlarge

  • Rooftop access doors
  • Bore scope ports in steam headers and piping
  • Sky climber anchor ports in access lanes
  • Limited tube bank depths


I-HRSG Module Construction

Flexible Installation Options to Minimize Field Labor and Overall Project Cost


modular box

Modular Box
Complete Module

Field Modular

Field Modular
Pressure Part Module

C Section

C Section
Partial Module



Waste Heat Recovery Boilers

Indeck is uniquely qualified as a designer, engineer and producer of steam generating systems. Our history of engineered steam solutions dates back to the industrial revolution. Indeck has gained considerable experience in the design and manufacturing of a broad range of waste heat recovery boilers.

Fluid Catalytic Cracker (FCC) Waste Heat Recovery Modules
Fluid Catalytic Cracker (FCC) Waste Heat Recovery Modules

Large Process Waste Heat Recovery Boiler
Large Process Waste Heat Recovery Boiler

Field Modular Shipment

Field Modular Shipment



Modular Box Shop Assembly

Modular Box Shop Assembly

Three Drum

Three Drum Open Bottom High Particulate Waste Heat Module


Fluid Catalytic Cracker Waste Heat Module

Fluid Catalytic Cracker Waste Heat Module

Incline HRSG Behind Small CT

Incline HRSG Behind Small CT

Membrane Waterwall Furnace for High Firing

Membrane Waterwall Furnace for High Firing


Packaged Waste Heat Boiler

Packaged Waste Heat Boiler



Indeck extended surface and bare tube surface designs for other non-gas turbine waste heat applications are ideal for clean to dust laden/dirty gas streams.  Fin density and tube/fin material varies with exhaust gas temperature, particulate loading and corrosion potential.

I-HRSG Aftermarket Engineering Parts and Service

Indeck’s industry leading engineering and service can improve your HRSG performance and reliability. Indeck is able to redesign and supply new heat recovery modules and tubes for all HRSG OEM designs. Indeck has the capability to understand and solve the challenges faced by combined-cycle plant operators throughout the world.

Comprehensive Repair and Upgrade Capability for:

  • Heat Recovery Steam Generators
  • 2-Drum Boilers
  • Keystone Package Steam Generators
  • VL Boilers
  • Travagrate Stokers/Solid Fuels
  • Experts in Boiler Start-up, Repair and Upgrades
  • Economizers, Airheaters and Preheaters
  • Superheater and Economizer Elements
  • Steam Drum Internals and Steam Purifiers
  • Burners, Fuel Feeders and Boiler Tubes
  • Highly Knowledgeable Field Service
  • Consultants and Construction Supervisors
  • Unit Inspections
  • Custom Training Programs, Outage Planning, Project Management
  • Condition Assessments
  • Maintenance Support
  • On-Site Testing and Re-Commissioning
  • Construction and Installation Services

Boiler Crane Lift
HRSG fully assembled modular box replacement

Indeck’s heritage includes many leading industry boiler brands. Indeck is the Exclusive Supplier of O.E.M. Boiler Parts and Services for:

  • Erie City Iron Works
  • Zurn Energy Division
  • Aalborg Industries, Inc. (Industrial Land Based Boilers)
  • Indeck Boiler
  • Volcano
  • International LaMont
  • Starfire
  • International Boiler Works
  • ThermoFlo

Indeck HRSG Brochure

Modular Box Drum Railcar

Because of such broad experience, comprehensive expertise and specialized resources, Indeck is uniquely qualified to provide any or all components for your boiler or HRSGs