Which trade keeps our food frozen or chilled so it safely gets to our dinner tables? The answer is Steamfitters. In this video from Building Wisconsin TV, host Stuart Keith meets with the pros at Summit Refrigeration Group to learn about Ammonia Refrigeration Systems. Owners, Mike Conti, Rick DeGroot and Fred Anderson give a tour along with the members from Steamfitters Local 601. We’ll see the Summit fabrication shop, visit a cold storage construction site and finish up in the engine room of a massive cold storage food warehouse. This video has over 70,000 views on YouTube.