Heating apparatus for heating and hot water supply of low-rise houses and flats. The aim of the present invention is to increase reliability, increase the thermal capacity and heating capacity by improving the design of the heating apparatus. The goal is achieved in that the heating device consists of a horizontal rectangular housing with a water jacket and a rectangular combustion chamber, which is installed at the end of the economizer, which is provided with a vertical beam smoke tubes. Flue tubes connects the combustion chamber and an upper dome camera, which is equipped with a removable hatches which is secured by bolts. A removable hatch for cleaning fire tubes and the upper chamber of the rotary eolian soot and ash. The device is equipped with a heating coil for hot water supply, which is disposed in a water jacket economizer. One advantage of the apparatus the heating is that it is equipped with an arched vault and configured as a water jacket, which is connected with a water jacket horizontal combustion chamber and the water jacket economizer, moreover, the rear end a water jacket connected to a water jacket of the combustion chamber and the water jacket through the economiser through-holes, forming a single water circuit of the heating apparatus, which increases the heat transfer surface and increases efficiency. To increase the removal of heat from the flue gases under the arched vault and before entering the flue tube bundle mounted screen pipe.; To expand the application of the heating device it can be equipped with a burner device for liquid or gaseous fuels, in addition, it can be equipped with heating elements (heating elements) integrated in the rear end a water jacket. Another advantage of the heating apparatus is that its design allows to extend its functional application by replacing the curved arch at a single or with two iron sheets and used not only for heating and hot water, but also for cooking, which is particularly economically advantageous for rural areas. As practice has shown operation of heating devices and their efficiency reaches 75 ... 78% and warranty period - not less than 10 years. Currently commercially available: AOTV-10; 16; 25 and 60 kW. Preparing to release AOTV-80 and 100 kW.
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