Electrical unit for stoves, fireplaces and like devices

In a solid-fuel stove having a fuel-combustion system;

• a hot-air circulation system arranged separately from said fuel-combustion system;
• fan means incorporated in said circulation system in the lower region of said stove;
• hot-air outlet means arranged in the upper region of said stove;
• a hearth space located between said fan means and said hot-air outlet means;
• and electrical connection means;
• the improvement comprising:
• an electrical heating unit having at least one electrical heating element mounted thereon;
• at least one current supply cable connected to said at least one electrical heating element;
• an open-ended, hollow conduit-pipe element protectively enclosing said at least one current supply cable, said conduit-pipe element having upper and lower open ends;
• and
• mounting means for so positioning said conduit-pipe element in the path of a positive flow of cooling air that said cooling air passes through said conduit-pipe means, from the lower open end thereof to the upper open end thereof, to thereby cool said at least one cable enclosed by said conduit-pipe element.

In a solid fuel stove, fireplace or like device having a combustion system, and a warm-air circulation system arranged separately from said combustion system,

• the improvement in accordance with the invention of an electrical heating unit comprising:
• at least one electrical heating element;
• current-supply cables connected to said at least one electrical heating element;
• an open-ended, hollow conduit-pipe element which protectively encloses said current-supply cables and which carries said at least one electrical heating element, said conduit-pipe element having upper and lower open ends;
• and
• mounting means for so positioning said conduit-pipe element in the flow path of the hot air in said stove, fireplace or like device that cooling air for cooling said supply cables flows into the lower open end of said conduit-pipe element, as a result of natural convection, and departs at the upper open end of said conduit-pipe element, where it is mixed with heated air in said warm-air circulation system of said stove, fireplace or like device.

In a solid-fuel stove having a fuel-combustion system;

• a hot-air circulation system arranged separately from said fuel-combustion system;
• air inlet means in said circulation system in the lower region of said stove;
• hot-air outlet means arranged in the upper region of said stove;
• a hearth space located between said air inlet means and said hot-air outlet means;
• and electrical connection means;
• the improvement comprising:
• an electrical heating unit having at least one electrical heating element mounted thereon;
• at least one current supply cable connected to said at least one electrical heating element;
• an open-ended, hollow conduit-pipe element protectively enclosing said at least one current supply cable, said conduit-pipe element having upper and lower open ends;
• and
• mounting means for so positioning said conduit-pipe element in the path of a positive flow of cooling air that said cooling air passes through said conduit-pipe means, from the lower open end thereof to the upper open end thereof, to thereby cool said at least one cable enclosed by said conduit-pipe element.