Abstract: The present disclosure provides a combustion furnace with controllable firepower, including a furnace body, wherein the furnace body is provided with a combustion chamber in which combustible materials are placed, wherein the furnace body further includes an adjusting mechanism and an air inlet, the air inlet is provided on the side wall of the furnace body and is configured to be communicated with the combustion chamber, the adjusting mechanism includes a baffle, the baffle is provided at the air inlet and closely clings to the side wall of the furnace body to turn off the air inlet, and the baffle is configured to move up and down with respect to the furnace body to control the air inlet to be turned on and off.

Abstract: A universal device for the automation of solid fuel barbecues and ovens is provided that includes an automated draft butterfly-type valve housed in a chimney module. The chimney module can be installed at the smoke exhaust of the oven or barbecue over which control is intended. An electronic board is housed in a control module linked to a motor. The motor rotates the butterfly-type valve that in turn drives the exit of the gas flow via an exit signal that supplies the butterfly-type valve. The electronic board is in connection with at least a room temperature probe located within the chamber of the oven or barbecue. The control module has a control means and a power supply. A solid fuel barbeque can be fitted with the universal device.

Abstract: A camouflaged structure and a method of camouflaging a structure against a background having a generally uniform composition of hue, saturation and brightness. In one embodiment, the camouflaged structures comprises a cell tower (100) camouflaged to decrease its visual impact when viewed by a viewer against a background sky (122) from an expected vantage point (102) using camouflaging techniques according to various aspects of the present invention. In a first aspect, the camouflage technique of the present invention comprises applying regions of color to one or more components of cell tower, wherein the colors are selected to match the composition (hue, saturation and brightness) of the background sky. In a seconds aspect, the camouflage technique of the present invention comprises providing one or more components of cell tower with reflectors that reflect light from an ambient sky (124) to a viewer.

Abstract: A damper-controlled gas delivery system for use with gas-fired fireplaces, the system having a solenoid valve controlling the supply of gas to a burner, a manipulable damper control lever, and a wire linkage connecting the damper control lever to a switch that controls the supply of electrical power to the solenoid valve, the damper control lever and switch, thereby preventing operation of the burner unless the damper is open.

Abstract: A fireplace downdraft regulator having a first end and a second end, such regulator extending across the top of a fireplace opening, such regulator having an aerodynamic draft header portion having a front face and a height and length, such draft header portion extending downwardly and rearwardly from the fireplace top at approximately 45 degrees to a vertical to form a corner angle and then extending upwards at approximately 90 degrees to the aerodynamic draft header portion to form a deflector portion with the deflector portion angled upwards into the chimney such that the inside portion of the regulator deflects downdrafts back upwards within the chimney and the aerodynamic draft header portion aids in drawing air from the room, which air travels down its front face and around the corner angle and back up the outside face of the deflector portion to help increase the updraft of air within the chimney.

Abstract: A fireplace, comprising an inner jacket and an outer jacket defining an air circulation path therebetween, is provided with a smoke chamber convection wall and a baffle convection wall oriented so as to efficiently transfer heat from the fire box to the air circulation path. A damper plate and a back draft blocking wall are positioned in the fireplace so as to effectively block back drafts in both the open and closed damper positions. The fireplace also includes exterior controls whereby the damper plate and an outside air vent can be controlled in a safe manner. A clean out shaft and a draft control are also provided to facilitate safe operation of the fireplace.

Abstract: This invention discloses a filter-and-fan assembly that can be installed into new fireplaces or retrofitted into existing fireplaces, for filtering dust and smoke out of the hot exhaust gases that are created when wood is burned in fireplaces. This filter assembly is provided with a mechanism that can move the filter out of the flue channel (i.e., the chimney or other exhaust outlet) if the filter becomes clogged by creosote and/or smoke particles. If desired, the mechanism that moves the filter out of the flue path can be automated under the control of a device such as an electronic smoke detector mounted in front of the fireplace, above the fireplace opening. Alternately, a thin filter-paper type of filtering element can be continuously scrolled through the flue channel. A rotating fan blade can be provided directly above the filter element, to ensure that exhaust gases are actively drawn up through the filter.

Abstract: A double walled fireplace insert is shown with an inner firebox and an outer shell to provide convection air channels between the parallel walls of the inner and outer units. A front panel is integral with the outer shell, and it covers the front of the insert. This front panel has room air intake vents that open into the said air channels, and warmed air outlet vents that open into the room to be heated by this fireplace. There is a circulating fan positioned within the convection air channels for governing the air movement through the said channels.