In one aspect, the present invention is directed to boiler heating system, comprising: a hollowed-walls cylinder, for storing therein water to be heated; a partition in a form of a cylinder, disposed inside the hollowed-walls cylinder, distantly from its vertical walls; the partition having an upper water passage and a lower water passage, for allowing water transition between the inner side of the partition and the outer side of the partition; a heating element disposed inside the inner space of the hollowed-walls cylinder; a water inlet, disposed in the lower side of the hollowed-walls cylinder; and a water outlet, disposed in an upper side of the hollowed-walls cylinder, thereby (a) allowing heating the water without being in direct contact between the heating element and the water, resulting with no scale accumulation, and (b) separation between ascending water and descending water, thereby accelerating the water warming.

In one aspect, the present invention is directed to boiler heating system, comprising: a hollowed-walls cylinder, for storing therein water to be heated; a partition in a form of a cylinder, disposed inside the hollowed-walls cylinder, distantly from its vertical walls; the partition having an upper water passage and a lower water passage, for allowing water transition between the inner side of the partition and the outer side of the partition; a heating element disposed inside the inner space of the hollowed-walls cylinder; a water inlet, disposed in the lower side of the hollowed-walls cylinder; and a water outlet, disposed in an upper side of the hollowed-walls cylinder, thereby (a) allowing heating the water without being in direct contact between the heating element and the water, resulting with no scale accumulation, and (b) separation between ascending water and descending water, thereby accelerating the water warming.

Heat transfer systems employing a heat transfer means (e.g., circulating fluid, thermally conductive material, etc.) to transfer heat from the heat source (e.g., fireplace, wood stove or other heat source) to a remote location of a home, residence, building or other structure.

The utility model relates to thermal power engineering, particularly to heating devices in which wood fuel undergoes high-temperature gasification (pyrolysis). The problem which the claimed utility model addresses is that of the consistent and environmentally clean combustion of wood fuel possessing a natural (that is, high) moisture content. The technical result is achieved in that the device includes a vertically-oriented additional gas duct through which the moisture contained in the fuel is removed in the form of of steam from the upper part of a fuel hopper to a flame in an afterburn chamber, wherein carbon monoxide mixed with steam is burned off and does not enter the atmosphere.

Heat transfer systems employing a heat transfer means (e.g., circulating fluid, thermally conductive material, etc.) to transfer heat from the heat source (e.g., fireplace, wood stove or other heat source) to a remote location of a home, residence, building or other structure.

A method for producing a component with a predetermined gloss level, including the steps of: preparing a component with a metallic surface; producing a matte/glossy mixture by mixing glossy paint and matte paint in a predetermined mixing ratio; applying the matte/glossy mixture to the metallic surface of the component; and cross-linking the matte/glossy mixture.

A stove includes a stove chamber, a chimney, and a water heater couplable to the chimney. The stove chamber includes a body with an opening. The stove chamber includes one or more interchangeable reducers couplable to the body. The one or more interchangeable reducers includes an opening of a selected size. The opening is at least partially coverable by a door of a door assembly. The stove chamber includes a fuel tray. The stove includes a stand couplable to the body and configured to raise the body a selected height from a ground surface. The chimney includes a stove pipe with one or more sections and a flue cap couplable to the stove pipe. The water heater includes a water heater body and a spout couplable to the water heater body. At least one of the stove chamber or the water heater includes one or more insulation layers.

An apparatus and system for efficiently and safely transferring heat from a masonry heater to an external heating device using coil pipes and a liquid circulation pump. Circulation of a heat transfer liquid in the apparatus and system is controlled based on the measured temperature of the heat transfer liquid in the coil pipe on a return side of the masonry heater. Two additional sensors near the external heating device are used to control the flow rate of the circulation of the heat transfer liquid in the apparatus and system, thereby controlling the amount of heat actually transferred to the external heating device.

An apparatus and system for efficiently and safely transferring heat from a masonry heater to an external heating device using coil pipes and a liquid circulation pump. Circulation of a heat transfer liquid in the apparatus and system is controlled based on the measured temperature of the heat transfer liquid in the coil pipe on a return side of the masonry heater. Two additional sensors near the external heating device are used to control the flow rate of the circulation of the heat transfer liquid in the apparatus and system, thereby controlling the amount of heat actually transferred to the external heating device.

An apparatus and system for efficiently and safely transferring heat from a masonry heater to an external heating device using coil pipes and a liquid circulation pump. Circulation of a heat transfer liquid in the apparatus and system is controlled based on the measured temperature of the heat transfer liquid in the coil pipe on a return side of the masonry heater. Two additional sensors near the external heating device are used to control the flow rate of the circulation of the heat transfer liquid in the apparatus and system, thereby controlling the amount of heat actually transferred to the external heating device.