Fire Sprinkler Systems, HVAC Controls, Indoor Air Quality, Plastic Pipe, Plumbing Equipment and Materials, Radiant Heating, Snow & Ice Melting Systems. Uponor is a leading provider of PEX plumbing, fire safety, radiant heating/cooling, snow melting, hydronic piping and pre insulated pipe systems for single family, multifamily and commercial structures. the core of Uponor systems feature flexible, durable and cost effective crosslinked, Health and Beauty, Plumbing Pipe, Radiant Heating, Fire Safety ...