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Radiant Heating:  A Subfloor That Heats

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A Subfloor That Heats

Key Features:
  • New construction panels are 1-1/8" thick plywood coated with aluminum.
  • Panels for retrofits are 13/16" thick OSB coated with aluminum.
  • Replaces conventional central heating systems.
  • Can be covered with any finish flooring.
  • $10 to $15 per square foot installed.
  • Pricing as of 2011.
Ask For:
  • Warmboard and Warmboard-R
Learn more about Warmboard:
by Deborah Holmes, Ebricks.com
You might think there would be nothing new to invent in a heating system that's been around for 2,000 years. But California based manufacturer Warmboard has done just that with a system that combines radiant heating with a rigid structural panel that doubles as a subfloor.

The plywood panels are coated with a thin layer of aluminum, an efficient conductor of heat. After the panels are installed, flexible PEX-aluminum-PEX tubing is inserted into the factory-cut grooves.

The system can then be covered with virtually any finish flooring, including hardwood, engineered products, carpeting or ceramic tile. Quiet and dust free, the system is intended to replace, not just supplement, conventional central heating systems.

Originally designed for new construction, the system is now available in 13/16 panels (compared to the original 1-1/8 inch thick panels) for remodels and renovations. The thinner OSB panels can also be used in ceilings.

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