Heat Transfer Systems, a 40 year old family-owned company, manufactures pressure vessels and heat exchangers. The heat exchangers which Heat Transfer Systems design and build include specialty shell & tubes, high pressure shell and tubes, waste heat recovery units and waste heat boilers. Fabricated equipment ranges from small 4 inch diameter to over 10 foot diameter units. Heat Transfer Systems can fabricate equipment in materials from carbon steel to nickel alloys and other high grade materials. Heat Transfer Systems equipment has been used in chemical, petrochemical, refining, upstream and midstream oil and gas and other industries.