Abstract: A modular-hinged grilling grate system may include a modular outer support structure and at least one attachable swivel grill grate section.

Abstract: A system for generating, storing and releasing heat comprises a tank surrounding a reservoir for holding a heat transfer fluid, heat releasing means in fluid communication with the reservoir for controllably releasing heat from the fluid to an object or space to be heated, and means for regulating flow of the fluid between the reservoir and the heat releasing means. A heat conductive fire chamber is disposed within and substantially surrounded by the reservoir, the system also comprising an air supply means for carrying combustion air to the fire chamber, and a heat conductive exhaust means for carrying hot exhaust gases through the reservoir. Access passageways are provided for fuel insertion and ash removal. Boiler tubes supporting the fuel as well as collecting heat from the fire chamber communicate with fluid in the reservoir. Shaker bars interspersed between the boiler tubes supporting the fuel may be actuated to agitate and more completely combust the fuel.

Abstract: A coal or wood-burning, thermostatically-operated space heater is shown and described. The heater includes a single thermostatically-operated draft control damper for controlling the supply of primary and secondary air to the fire chamber to avoid extreme temperature fluctuations and thus provide more even heating, to avoid excessive fuel consumption, and maximize burning efficiency. A movable grate assembly provides a simple, efficient mechanism for stirring the fuel and clearing the fire of ashes and spent fuel.