Exhaust Heat Recovery Products

Cain Industries Boiler Economizers

Boiler Economizer Systems

Heat Transfer Systems for Boiler Exhaust Recovery
Cain Industries offers an extensive selection of boiler economizers specifically designed to recover BTU exiting the exhaust stack and transfer it back into a desired heat sink. Our broad line of economizers cover the spectrum of boiler sizes, ranging from very small hot water boilers with burner inputs of 200,000 BTU/hr to large boilers delivering steam at 250,000 lb/hr. Cain also produces boiler feedwater systems, condensate tank and pump systems, exclusive sootblower assemblies and unique modulating internal exhaust gas bypass systems.

Exhaust Applications
  • Steam Boilers
  • Hot Water Boilers
  • Hot Oil Heaters
  • Ovens and Dryers
  • Specific Combustion Sources
  Equipment Variety
  • Boiler Economizers
  • Sootblowers
  • Circulating System Components
  • Storage Tanks
  • Modulating Internal Exhaust Gas Bypass Assembly

System Function
Cain boiler economizers reduce energy cost by capturing valuable heat from boiler combustion exhaust that would typically escape up the stack and into the atmosphere. This recovered BTU is transferred back into heat sinks such as boiler feedwater, cold makeup water, process water, swimming pool water, glycol and thermal fluids. Combustion fuels include natural gas, propane, digester gas, diesel fuel and No. 2-6 fuel oil.

Proposal Considerations
Consider Cain for cylindrical or rectangular stack connections, large or small boilers, a particular pinch point requirement, stack or liquid temperature control, special heat sink requirements, special heat transfer metallurgy requirements, specific maintenance concerns, optional equipment requirements, installation space and weight concerns, and package system requirements.

Anticipated Results
  • Tremendous fuel savings typically pay for equipment and installation within 1 to 2 years of average use
  • Pollution reduction equivalent to lowered annual fuel usage
  • Longest heat exchanger life expectancy

Boiler Economizer Family
Click on a economizer series below for more information:

Online Resources
Cain Industries Boiler Economizer Systems PDF Brochure Boiler Economizer Systems (.pdf)
A PDF brochure of Cain Industries Boiler Economizer heat recovery systems that include models: RTR, FCR, B Series, EM, CXL and DXL.
Cain Industries Gas & Diesel Cogeneration Systems

Exhaust Heat Recovery for Gas & Diesel Engine Cogeneration (CHP) Systems

Heat Transfer Systems for Large to Small Industrial Engine Processes
Cain Industries manufactures heat recovery product lines for gas and diesel engines, gas turbines, and micro turbine generator retrofit applications. For these applications, we offer over 500 standard products to choose from and can typically provide a comprehensive analysis and quotation to fit your exact needs within 48 hours. Our equipment can be adapted and assembled to fit any application or complete installation.

Cogen Applications
  • Hospitals
  • Manufacturing Plants
  • Schools
  • Office Buildings
  • Shopping Malls
  • Drilling Platforms
  • Oil & Gas Plants
  • Marine
  Equipment Variety
  • Exhaust Steam Generators
  • Large Exhaust Recovery Silencers
  • Smaller Specialized Exhaust Recovery Silencers
  • Special Heat Transfer Configurations
  • Recirculating Engine Jacket Water Boilers

System Function
BTU is transferred from the exhaust stream to heat sinks such as water, glycol, therminol fluids, or steam production. Suitable fuel types for combustion sources include natural gas, propane, digester gas, diesel fuel and light to heavy fuel oils.

Proposal Considerations
  • Large or Irregular Exhaust Connections
  • High or Varying Exhaust Temperatures
  • Particular Pinch Point Requirements
  • Exhaust or Liquid Control
  • Special Heat Sink Requirements
  • Special Heat Transfer Metallurgy Requirements
  • Specific Maintenance Concerns
  • Optional Equipment Requirements
  • Installation Space and Weight Concerns
  • Package System Requirements
Anticipated Results
  • Tremendous fuel savings typically pay for equipment and installation within 1 to 3 years of average use.
  • Pollution reduction due to lowered annual fuel usage.
  • Lower exhaust temperatures and significantly reduced sound output levels (final sound attenuation is typically 15 - 25 dBA).

Gas & Diesel Cogeneration Family
Click on a cogen series below for more information:

Online Resources
Cain Industries Gas & Diesel Cogeneration Systems PDF Brochure Gas & Diesel Cogeneration Systems (.pdf)
A PDF brochure of Cain Industries Gas & Diesel Cogeneration heat recovery systems that include models: ESG1, HRSR, HRSA, UTR1 and UTR.
Cain Industries Fume Incineration Systems

Exhaust Heat Recovery for Fume Incinerators, Thermal Oxidizers, Catalytic Converters, Industrial Ovens, Kilns and Furnaces

Heat Transfer Systems for Industrial Combustion Processes
Selecting the appropriate heat exchanger or waste heat boiler for fume incineration and other industrial combustion processes involves much consideration. Important areas of concern are controlling/bypassing exhaust waste heat, optimizing heat transfer performance, steam operating pressures, equipment size, weight and installation. Cain Industries' industrial heat exchanger family is specifically designed to address these concerns and more with standard design features not found in conventional heat recovery equipment.

System Function
BTU is transferred from the exhaust of incinerators, thermal oxidizers, catalytic converters, boilers and hot oil heaters to heat sinks such as water, ethylene glycol, therminol fluids, or steam production. Suitable fuel types for combustion sources include natural gas, propane, digester gas, diesel fuel, and light to heavy fuel oils.

Anticipated Results
  • Tremendous fuel savings typically pay for equipment and installation within 1 to 3 years of average use.
  • Pollution reduction due to lowered fuel usage.
Industrial Combustion Applications

Industrial Heat Exchange Family
Click on a heat recovery series below for more information:

Online Resources
Steam Power by Cain Industries

Heat Recovery Steam Generators for Engines, Incinerators, Thermal Oxidizers and Catalytic Converters

Selecting the correct "Heat Recovery Steam Generator" (HRSG) for engine cogeneration (CHP) and other industrial waste heat systems involves much consideration. Important areas of focus are controlling/bypassing the exhaust heat, optimizing overall system performance, maintaining required operating pressures, the boiler size, weight and installation. Cain's HRSG families are specifically designed to address these concerns and more with standard design features not found in conventional waste heat boilers. Our equipment will adapt to any retrofit application or new installation. Contact our sales team to receive a comprehensive proposal and quotation engineered to meet your exact requirements (within 48 hours).

Cain HRSG vs. Conventional Firetube Boiler
  • Generates 99% Dry Steam
  • 5 to 10 Minute Startup to Full Output
  • 1/3 to 1/2 the Weight, Size and Footprint
  • Integrated Full Exhaust Modulating Bypass
  • "Explosion Proof" Heat Transfer Exchanger
  • High Circulating Flow Minimizes Scale Buildup
  • No Thermal Expansion Problems: Accepting Cold Water Boiler Feedwater
  • Lowest "Pinch Point" Provides Greater Thermal Efficiency
Anticipated Results
  • Tremendous fuel savings typically pay for installed equipment within 1 to 3 years of average use.
  • Pollution reduction due to lowered annual fuel usage.
  • Lower exhaust temperatures and significantly reduced sound output levels (final sound attenuation is typically 15 - 25 dBA).
Steam Applications
  • Hospitals
  • Manufacturing Plants
  • Schools
  • Office Buildings
  • Shopping Malls
  • Drilling Platforms
  • Oil & Gas Plants
  • Marine

Heat Recovery Steam Generator Family
Click on a steam generator series below for more information:

Online Resources