Company History
Since its founding in 1976, Rock Energy Systems has been committed to providing innovative, energy-efficient heating solutions to industries worldwide. As a market leader, we manufacture high-quality products such as waste oil furnaces, high-volume low-speed fans, and radiant heaters, all designed to improve comfort and efficiency in the workplace.

2009 - Rock Energy Systems acquires Lanair


2010 - Rock Energy Systems acquires Clean Burn


2011 - Clean Burn operations moved to Janesville, WI

2015 - Launch of new SunFire radiant heater product line

2019 - Rock Energy Systems acquires EnergyLogic

2021 - Wilsquare Capital acquires Rock Energy Systems


2021 - Lanair rolls out XT series Waste Oil Heaters


2022 - SunFire unveils the SF-120

2023 - Rock Energy Systems launches Air Movement Solutions


2023 - SunFire introduces the SF-80


2025 - SunFire releases the SF160


2025 - Frigid Fix is introduced to the market
Rock Energy Systems: A Legacy of Innovation and Dedicated Employees
At the heart of Rock Energy Systems are our dedicated employees. From our skilled engineers and production staff to our customer support team, every individual plays a crucial role in our success. Their expertise, commitment, and passion for what they do are the driving force behind our continued growth and ability to deliver top-tier products to our customers.




