The vacuum steam heating system relates to the field of heat power, and specifically to energy saving technologies and is intended for autonomous heating of residential, public, industrial buildings and greenhouses, livestock farms, etc. In order to achieve the high-efficiency transfer of a thermal flow from a source of thermal energy, a vacuum steam method of heat transfer is used in conjunction of a closed evaporation-condensation cycle having a high rate of molar heat transfer via steam, with separate subsystems of condensate return and vacuum-creation and rarification control within the system, with the possibility of installing a heat supply point in a basement variant, floor-mounted variant and roof variant. The system reliability is achieved via the safe and uninterrupted operation, including in the presence of unsatisfactory levels of the system air-tightness (prior to eliminating leaks). The system efficiency reaches 89%, with 38% energy-carrier conservation.

The vacuum steam heating system relates to the field of heat power, and specifically to energy saving technologies and is intended for autonomous heating of residential, public, industrial buildings and greenhouses, livestock farms, etc. In order to achieve the high-efficiency transfer of a thermal flow from a source of thermal energy, a vacuum steam method of heat transfer is used in conjunction of a closed evaporation-condensation cycle having a high rate of molar heat transfer via steam, with separate subsystems of condensate return and vacuum-creation and rarification control within the system, with the possibility of installing a heat supply point in a basement variant, floor-mounted variant and roof variant. The system reliability is achieved via the safe and uninterrupted operation, including in the presence of unsatisfactory levels of the system air-tightness (prior to eliminating leaks). The system efficiency reaches 89%, with 38% energy-carrier conservation.

A vaporizer includes a vaporizer body, spheres, and a heater. The vaporizer body includes a liquid material supply unit that supplies a liquid material, a vaporization unit having therein a vaporization space for vaporizing the liquid material, and a source gas discharge unit that feeds a source gas obtained through vaporization to a subsequent step. The spheres are loaded in the vaporization unit. The heater emits infrared radiation. The heater is disposed with a gap from the vaporization unit. The vaporization unit and the spheres are formed of infrared-transmissive transparent members. A liquid pool into which the liquid material flows is provided in the vaporization unit so as to be positioned lower than flow paths of the liquid material flowing through the vaporization space.