MacDuffco Manufacturing Inc. is the manufacturer of the Ultra-Fin Heating System, the latest technological innovation in hydronic radiant floor heating. MacDuffco also manufactures a select line of products that simplify installationand wiring for hot water heating systems.

• See also:
• Masterformat 2004
• 21 05 23 - General-Duty Valves for Water-Based Fire-Suppression Piping
• 22 05 23 - General-Duty Valves for Plumbing Piping
• 23 05 23 - General-Duty Valves for HVAC Piping
• 23 83 00 - Radiant Heating Units
• Masterformat 1995
• 15110 - Valves
• 15770 - Floor-Heating & Snow-Melting Equipment