The interior of the Army Test and Evaluation Command Headquarters at Aberdeen Proving Ground, Md. which uses a radiant heat floor system to heat the building. Radiant heated floor system works a lot like the warmth of the sun. Radiant heat supplies heat directly to the floor and/or wall panels. This method of heating is more efficient that typical baseboard and forced-air heating because the heating surface is significantly larger. With a larger surface area, the temperature can be set lower to achieve the same heat transfer that baseboard and forced-air create. This system depends on the natural circulation of heat within the room (heat rises) and typically uses lower levels of electricity that more conventional heating systems.