A furnace for combusting wood comprises a firebox floor in a primary burn chamber of the furnace, where the wood is received for generating a gas therefrom, that is defined by a thermally conductive body of refractory material. The body of refractory material defines an upper support surface arranged to support the wood above or over the same. The body of refractory material also defines, beneath the upper support surface, a duct as part of a secondary burn chamber of the furnace which is arranged (i) to be communicated with the primary burn chamber of the furnace to receive the gas generated by heating of the wood therein and carrying combustible products, and (ii) to convey the gas in a manner supporting combustion of the combustible products carried thereby.

A cooking appliance has a combustion zone air flow path which includes a combustion zone. A first cooking zone is positioned in thermal communication with the combustion zone. During operation of the cooking appliance, combustion products produced in the combustion zone indirectly heat air whereby heated air is produced that is then introduced into the combustion zone and/or the first cooking zone.

A furnace for combusting wood comprises a firebox floor in a primary burn chamber of the furnace, where the wood is received for generating a gas therefrom, that is defined by a thermally conductive body of refractory material. The body of refractory material defines an upper support surface arranged to support the wood above or over the same. The body of refractory material also defines, beneath the upper support surface, a duct as part of a secondary burn chamber of the furnace which is arranged (i) to be communicated with the primary burn chamber of the furnace to receive the gas generated by heating of the wood therein and carrying combustible products, and (ii) to convey the gas in a manner supporting combustion of the combustible products carried thereby.

Combustion appliances for providing heat for cooking meats and other foods are provided. The appliances are self-stoking, in that they do not need to be repeatedly re-filled with more fuel periodically, such as during an 18-hour slow cook procedure. A venturi assembly is provided which consists of a venturi duct and baffle, which creates a higher flow, lower pressure region within the venturi assembly, which gases mix with spent combustion gases to provide a more uniform temperature output.

A combination outdoor ventless fireplace and brick oven system includes a main body with a framework assembly. A fireplace firebox is formed in the framework assembly. An oven firebox is formed in the framework assembly and suspended above the fireplace firebox. A chimney flue is disposed above the oven firebox in the framework assembly. The framework assembly is covered by a refractory heat resistant mortar. The fireplace firebox has an aperture. The system also has a gas line disposed in the framework assembly below the aperture. The gas line is configured to connect the aperture with a gaseous fuel source. A burner pan may be disposed in the aperture.

A combination outdoor ventless fireplace and brick oven system includes a main body with a framework assembly. A fireplace firebox is formed in the framework assembly. An oven firebox is formed in the framework assembly and suspended above the fireplace firebox. A chimney flue is disposed above the oven firebox in the framework assembly. The framework assembly is covered by a refractory heat resistant mortar. The fireplace firebox has an aperture. The system also has a gas line disposed in the framework assembly below the aperture. The gas line is configured to connect the aperture with a gaseous fuel source. A burner pan may be disposed in the aperture.

A pellet stove to heat the interior of a structure and provide a heating surface for cooking. The pellet stove has a hopper storing pellet fuel, a core assembly inside a stove enclosure, a primary burn chamber assembly for burning pellet fuel and an air venting system. The hopper gravity feeds pellet fuel to the primary burn chamber assembly. The core assembly has a burn chamber housing connected to a flame chamber by a burn channel. The primary burn chamber assembly has a burn basket and a fuel control mechanism to control the amount of pellet fuel burned in the burn basket. The venting systems draws inlet air into and discharges exhaust air out of the pellet stove, which is sealed to prevent drawing inlet air from or discharging exhaust air to the structure interior. Fire in the flame chamber can be seen through an exterior glass panel.

A combination outdoor ventless fireplace and brick oven system includes a main body with a framework assembly. A fireplace firebox is formed in the framework assembly. An oven firebox is formed in the framework assembly and suspended above the fireplace firebox. A chimney flue is disposed above the oven firebox in the framework assembly. The framework assembly is covered by a refractory heat resistant mortar. The fireplace firebox has an aperture. The system also has a gas line disposed in the framework assembly below the aperture. The gas line is configured to connect the aperture with a gaseous fuel source. A burner pan may be disposed in the aperture.

A combination outdoor ventless fireplace and brick oven system includes a main body with a framework assembly. A fireplace firebox is formed in the framework assembly. An oven firebox is formed in the framework assembly and suspended above the fireplace firebox. A chimney flue is disposed above the oven firebox in the framework assembly. The framework assembly is covered by a refractory heat resistant mortar. The fireplace firebox has an aperture. The system also has a gas line disposed in the framework assembly below the aperture. The gas line is configured to connect the aperture with a gaseous fuel source. A burner pan may be disposed in the aperture.

A condensate neutralizer system for treating condensate of a condensate generating device, the condensate neutralizer system including a container having an inlet and an outlet, the inlet is configured to receive condensate from the condensate generating device, the container is configured to contain a condensate neutralizing material useful for treating the condensate and the outlet is configured to drain condensate treated with the condensate neutralizing material; a controller; and a pH meter functionally connected to said controller, the pH meter is configured to take pH measurements of the treated condensate, the measurements are configured to be compared to a fault pattern, wherein the fault pattern is defined by a condition where the pH measurements are lower than a pre-determined pH level and if a fault is determined to exist, a warning is raised or a delivery of replenishment of the condensate neutralizing material is initiated.