Sundance Power
Systems, Inc.
Phone: 828.645.2080
Fax: 828.680.9798
11 Salem Hill Road
Weaverville, NC 28787
E-mail

Hydronic or Liquid Radiant Floors:

• Least expensive system design therefore used most commonly in residential applications.
  • Sundance designs and installs these types of systems

Electric Radiant Floors:

• Extremely expensive, but effective at heating residential system

Radiant Air Floors:

• Not very effective at holding large amounts of heat
• Most commonly used in commercial applications

Methods for Installing Radiant Floor Systems:

• Tubing In-Slab on Grade
  • For basements and areas where a concrete slab is being poured
  • Tubing is attached to the reinforcing wire mesh or rebar
  • The concrete is poured so that the tubing is embedded into the concrete slab
    • Slab Preparation:
    • It is important to thermally isolate the concrete slab from the ground in order to prevent heat being pulled away from the slab into the ground. Sundance recommends 2” of foam under the slab and 1/2” around the perimeter of the slab.

• Suspended Slab
  • Used on upper level floors
  • Tubing is attached to the top of the sub floor and a thin slab of lightweight concrete or gypcrete is poured over the tubing
  • The thickening of the slab varies but is usually between 1/2” – 3”
    • Suspended Slab and Wood Floor Installations:
      • Sleepers - strips of wood are attached to the sub floor in between the rows of tubing which provides a surface to nail the wood flooring to
      • Build a Floating Floor – requires two layers of 3/8” plywood layered in opposite directions under the wood floor
      • Use a Manufactured Floating Floor
• Joist-Space
  • Tubing laid under the sub floor to heat the floor above with aluminum heat transfer plates
• Pre-Engineered Sub Floor
  • Manufactured flooring used as the sub floor with pre-established grooves for the tubing