Acrylic is a sheet of material that is heated and vacuum formed over a mold, creating a continous waterproof membrane. It is then reinforced with fiberglass. Gelcoat fiberglass is a polyester resin sprayed onto a mold and then reinforced with fine glass particles. One is a solid surface, the other is porous.
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An Uponor plumbing system features Engel-method crosslinked polyethylene (PEX) tubing. This is a flexible plastic tubing product that has been used for more than 35 years in radiant floor heating, plumbing and fire safety systems.
Commercial Lennox mutli-furnace installation