Underfloor heating

Radiant heating systems supply heat directly to the floor or to panels in the wall or ceiling of a house.

Radiant heating is the effect you feel from the warmth of a hot stovetop.

floor heating depends heavily on convection

There are three types of radiant floor heat

• radiant air floors (air is the heat-carrying medium)
• electric radiant floors

• hot water (hydronic)

• wet installations make use of the large thermal mass of a concrete slab floor or lightweight concrete over a wooden subfloor

  • in dry installations the installer “sandwiches” the radiant floor tubing between two layers of plywood or attaches the tubing under the finished floor or subfloor

see https://www.energy.gov/energysaver/radiant-heating
great article

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