chestnut oven

As the days were once again growing shorter, a designer had a nostalgic dream - about the good old days with the whole family gathered around the open coal fire. Something, he felt sharply, was missing from his thermostatically- controlled centrally-heated home ... Something that would roast chestnuts ... The oven is constructed in an old tea- or biscuit-tin, with lid. An inner compart- ment, made from aluminium or copper sheet, is fitted inside the tin - well insulated and adequately supported by means of a blanket of glass-wool. A heating element is mounted under- neath ( or on top of) the floor of the insulated inner compartment. This element may conveniently consist of a few wirewound resistors - but the thermostatically-<:ontrolled centrally- heated version would use the dissipation from an LM 395 regulator.