Fireplace with preheated secondary air supply

Patent · Tue Sep 24 04:00:00 EDT 1985

OSTI ID:5900870

Scheler, P E

A fireplace cap is positioned outside the firebox of the fireplace. The cap has a framework comprised of first and second side members, an upper cross member and a lower damper section. A pair of hinged doors are mounted to this framework. Dampers selectively control the passage of primary combustion air directly to the firebox. A mantel overlies the upper cross member and a secondary air deflector baffle extends downwardly from the underside of the mantel. This baffle, together with the upper cross member, defines a transversely extending secondary air preheating chamber. Preheated air from the chamber is directed by the baffle across the doors prior to passing into the firebox. In one embodiment, secondary air enters the chamber through a space between the mantel and upper cross member. A valve controls the flow of secondary air to this space. In another embodiment, the damper section and side members define passageways which direct outside combustion air upwardly along the sides of the cap and into the chamber. Valves in the side passageways control the flow of air to the chamber.

• Assignee: ASSIGNED
• Patent Number(s): US 4542736
• OSTI ID: 5900870
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320101* -- Energy Conservation
Consumption
& Utilization-- Residential Buildings-- (-1987)
BAFFLES
BUILDINGS
CONTROL EQUIPMENT
DESIGN
DRAFT CONTROL SYSTEMS
EFFICIENCY
ENERGY EFFICIENCY
EQUIPMENT
FIREPLACES
FLOW REGULATORS
HEATING
HOUSES
RESIDENTIAL BUILDINGS
SPACE HEATING
VALVES