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 solid pellet fueled heater having a base unit with forced air blowers and a dual tube chimney structure is disclosed. The dual tube chimney structure may be used to warm incoming air for distribution around the heater. The pellet heater may also include a dual auger system and multi/high speed auger motor. The dual auger may include first and second auger blades mounted on a single auger shaft having blade pitches configured to convey solid fuel in opposite directions.

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 solid pellet fueled heater having a base unit with forced air blowers and a dual tube chimney structure is disclosed. The dual tube chimney structure may be used to warm incoming air for distribution around the heater. The pellet heater may also include a dual auger system and multi/high speed auger motor. The dual auger may include first and second auger blades mounted on a single auger shaft having blade pitches configured to convey solid fuel in opposite directions.

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 grill using a flue, of the present invention, can provide healthy food by allowing meat, fish and the like to be cooked without being burnt since high-temperature smoke, which is to be generated while firewood burns in the combustion chamber of a firewood combustion cylinder, is supplied to the inside of the flue chamber of a cooking hot plate, is guided along a smoke guide plate, and is simultaneously discharged to the outside through a smoke outlet, thereby slowly heating a cooking iron plate. In addition, support members fixed to the bottom surface are provided so as to be height-adjustable, thereby stably fixing the grill. Additionally, since an oil outlet is formed at the upper edge of the cooking iron plate, the oil to be generated during meat cooking is discharged to the combustion chamber of the firewood combustion cylinder so as not to remain on the cooking iron plate, and thus the present invention is sanitary and provides an ease of cleaning and the like.

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.

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.