ACSI’s Nationwide Services Can Add Years To A Boiler’s Operation

In addition to being “burner specialists,” ACSI is among a select group of firms that offer combustion-related refractory products and services nationwide.

We first identify the refractory liner most suitable for an application, assessing frequency of on-off cycling, insulation value, jacket appearance, thermal shock, exposure to chemical agents, catalytic heat, and combustion efficiency. ACSI engineers then create custom molds produced at our facility in Mokena, Illinois. We mix high temperature ceramic materials to form burner blocks that withstand up to 2100oF. We also take into account the weight of the lining, accurately identifying it across a light to heavy spectrum, in order to prevent potential cracking due to stress.

Our heat resistant refractory linings provide premium insulation value, a higher resistance to thermal shock, faster heating and cooling of the combustion chamber and greater overall efficiency. ACSI’s refractory services oftentimes add years to a boiler’s operation.


ACSI’s refractory services accommodate all types of boilers and furnaces including:

  • Industrial ovens
  • Thermal oxidizers
  • Kilns
  • New burner installations requiring front wall modifications
  • All types of furnaces such as reactors, ladles and stills
Frank Lacny
Frank founded American Combustion Service, Inc. & ACSI Mechanical in 1984. His consulting and specialized service capabilities for working on any type of fuel burner and/or fuel has earned ACSI a reputation as “burner specialists” in the community. Frank has trained and consulted for many groups and companies in Chicago and the Chicago Metropolitan Area. His areas of expertise include burner start-up work, unusual boiler room problem-solving situations, and general backup service support.