About Kono Kogs

Established in 1996, Kono Kogs, Inc. (KKI), is recognized as the industry leader in providing the most cost-effective thermal oxidizer solutions to our customers in a variety of vertical markets.

Utilizing our core team’s +150 years of combined application and technical experience, KKI makes air pollution control more affordable by offering quality, refurbished thermal, catalytic and regenerative thermal oxidizers to our clients to meet their stringent air permit regulations.

Kono Kogs 40,000 ft² warehouse and manufacturing facility located in Green Bay, WI houses the world’s largest rotating inventory of air pollution control equipment. With our knowledgeable staff eager to assist, we are ready to help you meet your company’s compliance needs. About


Our experience enables us to reconfigure our used thermal oxidizers to meet just about any application. Whether you treat emissions from spray booths, coating lines, semiconductor fab, printing, fiberglass, foam, OSB, ethanol, pharma, we likely have experience controlling them. Our leadership team has over 75 years of experience in designing and applying oxidizers into nearly every application- from simple to complex. Clean streams to particulate laden and halogen containing streams. If we don’t have a system that matches your needs we can guide you so you select the right features in a new system. If you still need help, we offer our expertise as a consultant for your equipment search. Our refurbished systems are always a great value for simple emission streams. For difficult airstreams we may not always have a good match, but when we do the savings can be substantial. Give us your challenging airstream and let our experience work for you. Learn More


With 20+ years of rebuilding nearly every OEM’s thermal, catalytic, or regenerative thermal oxidizer and guaranteeing that work, we can help you with your rebuild or upgrade work. On top of that we will confidently stand behind our work with performace and VOC destruction warranties. Would you like to extend the life of your existing system? Or give it an efficiency boost? We can do all of that without the removal, installation and down time costs of a replacement system. Please give us a call. We can add heat recovery to inefficient systems, increase VOC destruction efficiency with fine tuning, or wholesale upgrades, capture puffs from existing RTO systems, address needs associated with process changes, add dampers, run new ductwork, tie together multiple oxidizers to gain many benefits. Give us a call and we can help you intelligently navigate the many options available for your facility. Services


We are experts in removal and relocation of oxidizer systems. We know the nuances of prepping a unit for removal so it can be easily re-installed on the other end. We’ve been doing it since our first day in business Our fully trained crews won’t cut the wrong wires, split the unit when not necessary, and we understand all shipping factors to determine a smarter way to disassemble, ship, and re-assemble the oxidizer at its new home Trust us with your project– gain peace of mind. When an asset is on the books and is no longer needed in its current location, moving the system within your company may be a viable option. Is it viable? Let us help you “rule- out” or “rule-in” the relocation of your system. Inventory


We know reliability of your thermal oxidizer is critical. Need help troubleshooting your system?- check out our troubleshooting FAQ or simply call us. System running, but just not like it should?- schedule a preventive maintenance visit.

Need parts? Contact us for:

  • Fans
  • T-dampers
  • Burners
  • Gas Train Components
  • Actuators
  • Dampers
  • PLC Parts
  • Burner Management
  • Disconnects

We have used and new parts available on the shelf. Go to our eBay Store