Industries Served by Steel Stacks
At Hoffmann, Inc., our capabilities and experience allow us to design, fabricate, and erect steel stacks within many industries. This site section showcases our steel stacks in the industries they serve. Many of our designs cross-over industry markets, evidence of the diversity in our products.
We offer you the confidence and versatility needed to complete your project in a safe, cost-effective and timely manner.

Industrial
HVAC
One (1) 34′ 4″ high x 3′ I.D. carbon steel boiler stack with a carbon steel interior.
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Industrial
Limestone Mining
One (1) 75’ high x 7’6” dia. steel stack with a tapered base.

Industrial
Pulp and Paper
One (1) 260′ high x 12′ T.I.D.
- Free standing
- Dual wall
- Insulated steel stack
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Industrial
Waste
54’ high x 5’ O.D. steel stack with access ladders and platforms.

Commercial
Telecommunications
144’ high x 12’1” hermetically air-sealed dual wall steel stack.

Manufacturing
Chemical
One 100′ high x 80″ diameter.
- free-standing
- carbon steel stack
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Manufacturing
Refinery
300’ high x 8’ 3” T.I.D. tower supported insulated steel stack.

Manufacturing
Aluminum
67’ high x 10’ 6” T.I.D. single wall steel stack.

Municipal
Power/Utility
Two 165′ high x 19′ diameter
- free standing
- carbon steel stacks
- shipped by barge
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Power and Energy
Steam Generation
187’ 6” high x 4’ 9” T.I.D. dual wall, CorTen stack.

Power and Energy
Cogeneration
233’ high x 16’6” I.D. HRSG steel stack with three 6’ I.D. auxillary stacks.

Renewable Energy
Ethanol
- One 160′ high x 6′ I.D. dual wall insulated, free standing steel stack.
- One 125′ high x 5’6″ diameter supported stainless steel stack
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Processing
Fabricated and installed:
- Stainless steel exhaust stack
- Carbon steel biomass burner
- Two carbon steel cyclones
- Carbon steel ductwork
- Concrete foundation for dehydrating system
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Military
150’ high x 14’ T.O.D. multi-flue stack
Have a Project in Mind?
Let’s Get Building!
Expert design-build firm specializing in reinforced concrete silos & industrial chimneys since 1914. Trusted nationwide for durable storage solutions.
6001 49th Street South
Muscatine, Iowa 52761
Location & Directions
Phone
(563) 263-4733
sales & services
Silos, Chimneys and Inspections
sales@hoffmanninc.com
563.263.4733 Phone
Steel Stacks, Fabrication and Industrial Services
sales@silverhawkfab.com
563.263.4733 Phone
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