Other

The Majestic Products Company

Canadian Gas Research Institute

729819 Ontario Limited

Heinz H Rieger

Larry E Campbell

Sydney R Barkhouse

Martin Thomas

Dick D Gepilano

James Karl Georgieff

John Charles Kenzie Overall

Colin Adamson

Sydney Richard Barkhouse

A heating appliance including a firebox having an inlet and an outlet, the firebox inlet and outlet in communication with a space containing ambient air and within which the appliance is located. A gas burner is disposed within the firebox and provides a flame, the flame supported by ambient air entering the firebox through the firebox inlet, the flame producing products of combustion which exit the firebox throught the firebox outlet. A catalyst element is in communication with the firebox outlet, and at least a portion of the products of combustion which exit the firebox through the firebox outlet are directed through the catalyst element. At least some of the products of combustion directed through the catalyst element are catalyzed, the catalyzed products of combustion being directed into the space in which the appliance is located. A plenum is in thermal communication with the firebox. Ambient air received from the space in which the appliance is located is conveyed through the plenum, the plenum having an outlet from which the air conveyed through the plenum is directed into the space in which the applicance is located. The ambient air being conveyed through the plenum is substantially out of fluid communication with the catalyzed products of combustion within the appliance.

Unvented heating appliance having system for reducing undesirable combustion products

A gas-fueled heating appliance having a system for reducing the amount of undesirable combustion products released to the site in which the appliance is installed. The appliance includes a firebox partially surrounded by a heat exchanger. Ambient air is drawn into the heat exchanger below the firebox and a portion of the ambient air enters the firebox to assist in combustion, and the remaining portion travels through the heat exchanger to be heated by convection before being combined with combustion gases exiting through the top of the firebox. The heat exchanger creates a low pressure area relative to the firebox which induces a draft from the firebox into the heat exchanger and ultimately to the ambient environment through an exit provided above the firebox. A carbon monoxide catalyst element is provided in the exit passageway from the firebox to the heat exchanger to oxidize carbon monoxide into carbon dioxide and filter away airborne particulates which would otherwise be released to the ambient air.

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.

Fireplace having multi-zone heating control

A fireplace has a manifold positioned between a combustion chamber and a flue. The manifold has a pair of inlets to supply dilution air to the flue, one extending from a front face of the fireplace, and the other from a rearward location. A baffle extends across the outlet of the manifold to prevent direct communication between the combustion chamber and flue. The inlet at the front face enables the flow of dilution air to be checked with the fireplace installed without having to accomodate the full flow of dilution air. The baffle prevents downdrafts from adversely affecting the combustion in the combustion chamber.

Hood for fireplace

A method and adaptor for installing a flue liner in a fireplace chimney in the installation of a fireplace insert is shown. The adaptor can be slidably mounted on top of the firebox of the fireplace insert with two slider brackets mounted on top of the firebox. The adaptor has a sleeve therein for coupling to the flue liner. The flue liner can be conveniently installed by first inserting it into the chimney with its lower end connected to the sleeve. The adaptor is then slidably mounted to the firebox by slidably engaging with the two slider brackets while the firebox is being inset into the fireplace.

Method and adaptor for installing flue liner to a fireplace insert

The fireplace has a coaxial vent directly venting the exhaust gas through its top. The fresh air is directed through an outer jacket of the coaxial vent to a chamber located between the firebox and the rear panel and enters into the lower portion of the firebox while the exhaust air is conducted through the inner coaxial duct, located inside the fresh air duct, to be released to the outdoor. Residual heat in the exhaust gas is inherently recycled by the fresh air being drawn into the fireplace to enhance combustion and to increase the efficiency for heating purposes.

Direct top venting high efficiency fireplace

A fireplace provided with a sound reducer is shown. The sound reducer eliminates ambient noise feeding back to the indoor through the flue system of the fireplace.

Fireplace flue ambient noise reducing device

A gas burner assembly for a fireplace is shown. The assembly is operative to produce a flickering yellow flame pattern which closely resembles to that produced by a natural wood log fire, yet there is virtually no formation of carbon monoxide gas in the ignition. The assembly generally comprises four artificial logs arranged in a predetermined spaced relationship to a gas burner. The gas burner consists of a rectangular opened top casing having distribution means for emitting a gas and air mixture through its top. The artificial log comprises a flexible metal tube wrapped with a ceramic fibre blanked which is impregnated with a colloidal compound and thermally cured. The surface of the log is textured and painted to simulate the appearance of a natural wood log. Flame deflectors are provided either above or in the burner to baffle direct flame impingement on the logs so that the flames rise to a relatively high level above the logs to provide a full visibility of the flame in the fireplace.

Fireplace gas burner assembly

A burner assembly suitable for use in the fireplace is shown. The burner is operative with either natural gas or propane gas to produce a flame pattern closely resembles to that of a natural wood log fire yet there is virtually no formation of carbon monoxide gas in the exhaust.

Growing community of inventors

Toronto, Canada

Heinz H Rieger