When designing the heating system, care must be taken to ensure that proper clearance is maintained from electrical fixtures, cabinetry, partition walls and other permanent features.

Permanent Features ­ RetroHeat heating panels must be installed so that they will not be covered, even in part, by partition walls or other structures that cross the floor. Heating panels which are covered by any structures may overheat.

Wiring ­ Electrical wiring in the floor must be at least 2" away from the heating panels with a barrier of insulation filling that space. This space may be horizontal along the joist space.

Surface Mounted Fixtures ­ Do not install the heating panels closer than 8" from the edges of any electrical boxes for surface mounted fixtures in the floor since surface mounted fixtures may have additional trim which extend far beyond the edges of the electrical boxes.

Recessed Fixtures ­ At least 2" of clearance must be maintained between the trim of recessed fixtures or outlets and the heating panels. Heat Sources ­ At least 8" of clearance must be maintained between heat sources and the heating panels. Pipes ­ At least 2" of clearance must be maintained between any pipes (metal or plastic) and the heating panels. End of Joist Cavities ­ Leave at least 6" of clearance at each end of each joist cavity to accommodate wiring and assembly.