Abstract: An apparatus for both improving the heat distribution throughout a room from a portable kerosene heater and for collecting undesirable emissions resulting from the burning of the kerosene, includes a base adapted to be mounted on the top of the heater, the base supporting a vertically extending shaft on which is mounted a heat-driven fan formed of either paper or metal, and a disposable disk mounted a spaced distance above the fan on the same shaft, the disk serving as a collector for the undesirable emissions. When the device is placed on an operating kerosene heater, the rising hot air and gases from the heater cause the fan to rotate, which in turn causes emissions from the burning fuel to move upwardly in a more or less cylindrical path. As the products of combustion move upwardly, certain emissions therein such as soot, oily vapors, etc. deposit or condense onto the surface of the spinner and disposable disk.

Abstract: A sheetmetal water tank has spaced vapor ports in its upper end arranged in a circle. An inverted, generally can-shaped shroud, which has an outer diameter smaller than that of the tank, is secured coaxially on the tank with its lower, open end positioned in spaced, near tangential registry with the vapor ports. An electric fan is mounted in the shroud to rotate in a horizontal plane positioned axially inwardly from the lower, open end of the shroud. The fan is controlled by a combination switch-rheostat unit, which is mounted on top of the shroud for operation by a manually rotatable knob.In use the tank is placed on a heated surface, and its fan is energized to draw fresh air through vent openings in the top of the shroud, and to force the air radially out of the lower end of the shroud and over the vapor ports so that the air entrains moisture for delivery to the surrounding room.

Abstract: The present invention relates to a stove of the type having a firebox and a second outer wall that defines an air passageway around the fire-box. Provided with the stove is a fan for forcing air around the defined air passageway for collecting heat from a burning fire within the firebox. A flue is communicatively connected with the firebox and extends therefrom through the defined air passageway and on through the outer wall structure of the stove. Co-axially disposed around the flue and communicatively connected with the air passageway is a vent for directing heated air from the stove. The co-axial relationship of the vent and flue assures that the flue gases must pass within the heated air passing in the vent or vice versa, and this gives rise to a very efficient stove inasmuch as a substantial portion of the heat associated with the flue gases being exhausted is transferred to the vented air.