Karl Gustave Adrian Larson, president, CEO, and then Chairman of the Gustave A. Larson Co., passed away on March 4, 2012 at 80 years old. He was a dedicated family man who is survived by his wife M. Madeleine Larson of Aspen, Colorado, sons Arne G. Larson (Donna) of San Antonio, Texas, Andrew G. Larson (Amy) of Boulder, Colorado, and Scott Karl Larson (Antonella) of Milwaukee, Wisconsin. His legacy will also live on through his grandchildren Lindsay & Kelsey (Arne & Donna), Kyle, Julia, Connor, and Tyler (Andrew & Amy), and Stephanie, Samantha, and Silvia (Scott & Antonella).    

Larson was engaged in charitable and industry boards being on the board of the Milwaukee Ballet, University of Colorado (CU) Engineering School Board, and Deacon at First Congregational Church. He was also very supportive of medical research at the Cleveland Clinic, National Jewish in Denver, and CU Children's Hospital. His contributions to the HVACR industry are countless, including his tenure as NHRAW Refrigeration Council Chairman, Regional Trustee and President. 

The family has requested that gifts in memory of Karl Larson be made to the University of Colorado Foundation, in lieu of flowers. Gifts will be used for the Karl Larson HVAC Research Fund. Its purpose is to provide support for students at CU Boulder doing research into heating, ventilation and air conditioning in the Larson Lab in the College of Engineering and Applied Science at CU Boulder.