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
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Equipment Variety
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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.
- 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: