Several styles of radiator covers or tops are available com mercially, but their use adds little to the essential unattractiveness of a projecting radiator. It is not difficult, however, to conceal, or at least to camouflage a radi ator which extends out into the room, provided that a few basic requirements arc borne in mind. Although all radiator enclosures have the effect of cutting off the emission 0: some heat waves, if properly designed, they will compensate for this apparent los: Courtesy Crane Co. Fig. 4.9. Use of long, scalloped valances in kitchen. 256 FURNITURE MAKING AND CABINET WORK \ by an increased flow and better distribution of the wanned air. Improperly designed enЩШк closures, on the other hand, may reduce the radiator's heating efficiency by as much as 5c per cent. When only a front grille is included in the radiator enclosure, the space between the top of the radiator and the solid top of the cover should not be less than the distance equal to the thickness of the radiator, measured from front to back. The second common fault in a radiator enclosure with a solid top is that of permitting the even flow of heated air to be trapped by the square corner where the top meets the back. Such a corner can be easily HHpi: 4 eliminated by bending a section of bright tin 0Ышшт&ш0;'7' or galvanized iron into a curve, thus lining the back and top in one interrupted flow Courtesy American Radiator & sheet which will throw the heat waves forward. Standard Sanitary Corp. a ,1 • i с u • .1 . «• i • A third common fault is that of skimping Fig. 4.10. Baseboard radiant panel. on the size of the coolair inlet at the bottom of the enclosure. A practical rule of thumb is to arrange that the coolair opening is at least 80 per cent of the area of the top opening or grille provided for the egress of the heated air. This, in effect, creates a chimney whose draft will increase in proportion to the distance between the radiator top and the top of the enclosure. Courtesy American Radiator & Standard Sanitary Corp. Fig. 4.1 i. Castiron convenor radiator. BUILTIN FURNITURE AND CONVENIENCES 25' To prolong the stability of a wooden radiator covering, it should be completeb lined with insulating material. Paperthin sheets of aluminum over sheets 0 asbestos will act as efficient reflecting surfaces. In fact, the insulation of the rea wall behind the radiator will create considerable savings in heat absorption. When remodeling extra space such as a basement or attic, where no heatinj arrangements previously existed, it might be well to investigate the advantages 0 baseboard radiant panel heating (Figure 410). This type of heating unit literalh takes the place of a baseboard, and is as inconspicuous. Convector radiator (Figure 411) can be recessed into the wall so that the outer panel is flush wit! the wall, with which it can be matched by painting. closet doors ClosetDoor Racks.