摘要 |
<p>The device comprises a case housing two parallel, spaced curtains (34, 36) defining first and second convection chambers (38, 40). The case is adapted for location either against, or in spaced relation to a structural wall behind a radiant heater. It is formed with a large central opening (20) permitting entrance of radiant energy from the stove, a cold air inlet (64) communicating with the convection chambers either at the lower end of the case or at the sides, and a hot air exhaust (32) communicating with the upper end of the convection chambers. The outermost curtain (34) may be constructed for adjustment between positions in which it absorbs or reflects radiant energy as desired.</p> |