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AssigneeCanadian Gas Research Institute
InventorsMartin Thomas, Sydney Richard Barkhouse, John Charles Kenzie Overall, Dick D. Gepilano, James Karl Georgieff, Heinz H. Rieger
Estimating the term…
A fireplace adapted to heat multiple heating zones of a building, controlled by a control circuit which adjusts the heat input to the fireplace, airflow through the fireplace and ducting of the airflow to the various zones individually in response to a call for heat by thermostats in the zones. The fireplace may also be adapted to provide cooled or circulated air to the zones and may also serve to provide heating to the zones in the event of an electrical power outage. The fireplace is provided with a cabinet having ducts through which air is conveyed by use of a fan to a tube-type heat exchanger, the heat exchanger also in communication with the hot flue gases exiting the combustion chamber of the fireplace. The air heated by the heat exchanger is conveyed to a multitude of fireplace outlets, each of which is provided with a damper which regulates the airflow through the outlet to one of the zones to be heated, depending on whether that zone calls for heat through its thermostat. The fireplace is also provided with an evaporator core in an evaporator case, the core being part of an air conditioning system. Air flowing through the fireplace may bypass the cabinet ducts and tube-type heat exchanger, instead being directed to flow through the evaporator core, where it may be cooled, and then to the fireplace outlets for distribution to the zones.
A fireplace comprising:
A fireplace comprising:
A fireplace comprising:
A system for heating a plurality of zones in a building, said system comprising:
A fireplace having a cabinet, a combustion chamber within said cabinet, said combustion chamber defined in part by a plurality of walls, decorative logs and a burner disposed in said combustion chamber, said cabinet including a transparent panel through which said logs are viewed, said cabinet having a first plenum and a second plenum, said first and second plenums located within said cabinet and defined in part by said combustion chamber walls, and a heat exchanger element in thermal communication with said combustion chamber and interposed between said first and second plenums, said heat exchanger element having an air inlet in fluid communication with an air outlet of said first plenum and an air outlet in fluid communication with an air inlet of said second plenum, said heat exchanger element comprising walls defining a generally U-shaped interior air flow path, said generally U-shaped interior air flow path extending between an air inlet and an air outlet of said heat exchanger element, and a plurality of conduits extending through said interior air flow path and through which conduits combustion gases flow.
Dependencies are inferred from the claim text.