Circulating fireplace with adjustable controls for selectively heating one or more rooms

Patent · Tue Jul 10 04:00:00 EDT 1979

OSTI ID:5474010

Stiber, C W

A wood burning system is disclosed for selectively heating one or several rooms in a structure, such system including a fireplace with a firebox, a chimney based on a thermal vacuum principle of operation, a combustion dome interconnecting the firebox and chimney, an inlet passage and an outlet passage defined in the bottom wall of the firebox, and a barrier situated between the inlet and outlet passage to control communication therebetween. When the barrier in the firebox is closed and a glass door seals off the open side of the firebox, the outlet passage in the firebox introduces heated air for distribution through several rooms, while the inlet passage receives the return flow of thermally spent air from the ductwork. The thermally spent air passes over the fire in the firebox and escapes up the flue. When the barrier in the firebox is opened, direct communication is established between the inlet and outlet passages so that the firebox is isolated from the ductwork and the fireplace provides heat only to the room in which it is situated. The fireplace and ductwork comprise a closed-loop heating system.

• Assignee: TIC; EDB-80-049663
• Patent Number(s): US 4160524
• OSTI ID: 5474010
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320100* -- Energy Conservation
Consumption
& Utilization-- Buildings
APPLIANCES
BUILDINGS
CONTROL SYSTEMS
DESIGN
DUCTS
FIREPLACES
HEAT SOURCES
HEATING
SPACE HEATING
VENTILATION
WOOD BURNING APPLIANCES