Abstract: A radiant heating assembly for use with systems for heating an enclosed space by circulating a fluid through a closed tubing arrangement is provided. The inventive radiant heating assembly is made up of a radiant heating panel and tubing. The radiant heating panel is made up of a radiant heat transfer plate having a length and center line, and an elongated C-shaped or side opening receptacle that extends along the center line of the plate for receiving the tubing. A plurality of depressions extends along an inner surface of the C-shaped receptacle that interfaces with the plate. The tubing conforms to these depressions, thereby allowing the radiant heating assembly to achieve greater radiant heat dissipation capacity and efficiency.

Abstract: The fan unit has a fan 150, fan housing frame 110, and fan housing cover 170. The fan 150 has a frame 151, a fan blade 152 freely rotatable to the frame, and a mounting hole 153 disposed to the frame. The box frame 110 has an opening 115 on one (top) side for disposing the fan 150 internally thereto, a ventilation opening in the opposite (bottom) side, and engaging members 117 formed on an inside wall for fitting into a mounting hole 153 of the internally disposed fan and thereby determining the fan position. The cover 170 has a ventilation opening, and an engaging protrusion on an inside wall for fitting into a mounting hole 153 of the fan internally disposed to the fan housing frame. The fan housing cover 170 thus engages the fan housing frame 110 so as to cover the opening 115 into which the fan is installed, and in conjunction with the fan housing frame 110 secures the fan in the fan housing frame.