Columbia NW Heating & Air ConditioningLogo Design Contest Logo Design Contest Contests / Columbia NW Heating & Air Conditioning Columbia NW Heating & Air Conditioning has selected their winning logo design. For $575 they received 107 designs from 31 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by kib647 Return to Contest Return to Contest 7th #4 Withdrawn Prefers others. #3 Discussion No comments yet.