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Heat Accumulators

Forced-air-channel-baffles

Heating, lighting and ventilation systems

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Forced air channel baffles

Details

Inventors: Buckner, Carrol E.;
Assignee: Smoky Mountain Enterprises, Inc. (Asheville, NC)
Primary Examiner: King; Lloyd L.
Assistant Examiner: Tapolcai, Jr.; William E.
Attorney, Agent or Firm: Leitner, Palan, Martin & Bernstein

A free-standing unit for heating air in a U-shaped channel surrounding a fire box having a pair of spaced vertical vents for directing the heated forced air to converge in front of the fire box opening to limit air flow towards said openings. Mesh in the vertical vents directs the forced air downward to be combined with the hot forced air from a bottom horizontal vent. A baffle plate depending from the top of the fire-box adjacent the flue port and an opening along the top of the doors ignite the gases adjacent the top and directs some gases back into the fire. By forcing heated air at a low level and drawing cool air from a high level, the air being heated is of a uniform temperature. A hood extending along the top edge of the fire box opening diverts exiting gases back into the fire box. A thermostatically controlled blower creates the forced air and cools the fire box walls.

DETAILED DESCRIPTION The present invention is a forced air heating unit having double walled sides, back, and bottom, and a single walled front and top.
A forced air channel, defined by the double sides, back and bottom wall, includes a system of baffles to direct forced air over substantially all of the surface area of the side, back, and bottom fire box walls.
The baffles in the back portion of the forced air channel direct forced air between the back portion and the two side and bottom portions.
The baffles in the bottom portion direct forced air between the bottom portion and the back and two side portions.
The baffles in the side direct forced air between the side portions and the back and bottom portions.
A blower is thermostatically controlled to introduce forced air into the air channel for maintaining the back, side and bottom fire box walls in a minimum temperature range to heat the forced air while maximizing the transfer of heat from the burning material to the forced air channel instead of up the flue.
The front wall of the heating unit includes an access opening and a pair of doors for covering the access opening.
An adjustable draft valve in each door includes a positive screw lock.
Depending from the top of the fire box adjacent the flue port in the rear of the fire box is a gas baffle for directing rising gas to an area of the fire box where the gases are ignited.
The gas baffle directs some of the gas downward to the burning material to be ignited and maintains some of the gases adjacent the top of the fire box in front of the gas baffle.
The top of the doors are spaced from the top edge of the access opening to allow air to circulate into the firebox adjacent the top wall for aiding ignition of the gases collected adjacent the top wall.
The major source of air is the space between the doors which is covered by a vertical strip mounted to one of the doors.
A hood is mounted adjacent the top edge of the access opening for directing gases exiting the top edge of the access opening back into the fire box

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