Inventors:
Julius D. Geier - Decatur IL
Assignee:
Illinois Power Company - Decatur IL
International Classification:
F25B 2900
Abstract:
A building heating system includes a plenum for distributing heated air and returning cool air to the heater. In accordance with this invention, additional heat pump means are provided comprising condenser or heat rejecter means positioned in the cold air plenum, heat absorber means which are preferably positioned in the attic of the building underneath the roof and/or in heat exchange relation with warmed gases from a chimney, and conduit and compressor means for providing heat transfer flow communication therebetween.