Apparatus and method for measuring the heating value of gases

The heating value meter (1) for gases, comprising an outer mantle (10) with thermostatically controlled heating and with at least one air inlet (103) for introduction of air and at least one as inlet (105) for introduction of test gas or for introduction of calibration gas, and a measuring block (11) placed inside the outer mantle (10), characterized in, that outer mantle (10) is cylindrical, it is equipped with a heating mantle (101) on its outer surface and its bottom part contains an outer sensor (102) of an first electrical remote thermometer of the outer thermostatic apparatus (2) placed axially in the wall, and a measuring block (11) is also cylindrical with an axial through-hole (113), it is located coaxially inside the outer mantle (10) and its upper part is equipped with an outlet (104) and an axially inserted internal sensor (112) of a second electrical remote thermometer of the internal thermostatic apparatus (3), while the heating mantle (101) and the outer sensor (102), and also the electrical heating block (111) and the internal sensor (112), are interconnected via the outer and internal thermostatic apparatus (2, 3), adjusted for maintaining of a constant temperature value by regulation of an electrical input to the electrical heating block (111), or of the electrical input to the heating mantle (101), wherein the measuring apparatus (31) of the electrical input of the heating block (111) is connected to an electric lead of the electrical heating block (111).