A radiant heater device for generating a radiant heat, includes a substrate portion having a plate shape and made of an electrically insulating material, a surface member having a sheet shape and disposed on one surface side of the substrate portion, and a heat generation portion formed on the other surface side of the substrate portion. The surface member is formed of a fiber fabric that is provided with a space portion recessed toward the substrate portion in a thickness direction of the surface member and that restricts a heat transfer in a surface direction of the surface member by the space portion.

A stationary infrared radiator which is to be operated in a decentralized manner for heating buildings, including a reflector and at least two different components which emit IR radiation for heating, the reflector having a longitudinal axis (L) and a transverse axis (Q), which runs at right angles to the longitudinal axis (L) and parallel to the reflector, and a reflector surface. The first component is designed as a bright radiator or as a dark radiator and has a connection for supplying fuel gas. The second component is designed as an electrical resistance heater having at least one heating element. The aim is to control the temperature more precisely and simultaneously to produce the infrared radiator more simply. The first component and the second component are respectively disposed offset from one another in a direction of the transverse axis (Q) and in a direction at right angles to both axes (L, Q) in front of the reflector surface.

A stationary infrared radiator which is to be operated in a decentralized manner for heating buildings, including a reflector and at least two different components which emit IR radiation for heating, the reflector having a longitudinal axis (L) and a transverse axis (Q), which runs at right angles to the longitudinal axis (L) and parallel to the reflector, and a reflector surface. The first component is designed as a bright radiator or as a dark radiator and has a connection for supplying fuel gas. The second component is designed as an electrical resistance heater having at least one heating element. The aim is to control the temperature more precisely and simultaneously to produce the infrared radiator more simply. The first component and the second component are respectively disposed offset from one another in a direction of the transverse axis (Q) and in a direction at right angles to both axes (L, Q) in front of the reflector surface.

A radiant heater includes a generally U-shaped radiative heating element having a first straight section, a second straight section, and an interconnecting U-shaped section. The non-connected end of the first straight section is arranged for communication with a burner and the non-connected end of the second straight section is arranged for communication with an extractor for extracting combustion gases from the tube. A redirecting element including opposed helical vanes, each executing a 180 turn about a central, common tube, is arranged within the first straight section so as to redirect, in use, at least a portion of the combusted gases flowing within the upper half of the tube towards the lower half, and gases flowing in the lower half towards the upper half.

A radiant heater includes a generally U-shaped radiative heating element having a first straight section, a second straight section, and an interconnecting U-shaped section. The non-connected end of the first straight section is arranged for communication with a burner and the non-connected end of the second straight section is arranged for communication with an extractor for extracting combustion gases from the tube. A redirecting element including opposed helical vanes, each executing a 180 turn about a central, common tube, is arranged within the first straight section so as to redirect, in use, at least a portion of the combusted gases flowing within the upper half of the tube towards the lower half, and gases flowing in the lower half towards the upper half.

There is provided a system for securing a tube heater to a structure, the tube heater having a burner and a radiant tube extending to an exhaust outlet. The system includes an elongate canopy with an exhaust end securable to the exhaust outlet, an opposed burner end securable adjacent to the burner, and a reflector extending there between. An exhaust hanger is rigidly coupled to the structure and to the canopy proximate the exhaust end, and rigidly receives the exhaust outlet. A burner hanger is coupled to the canopy proximate the burner end and is slidably coupled to the structure. The burner hanger receives the radiant tube therethrough. The burner hanger allows the burner and burner end of the canopy to slide relative to the structure to accommodate thermal expansion of the radiant tube and the canopy from the exhaust end towards the burner end.

There is provided a system for securing a tube heater to a structure, the tube heater having a burner and a radiant tube extending to an exhaust outlet. The system includes an elongate canopy with an exhaust end securable to the exhaust outlet, an opposed burner end securable adjacent to the burner, and a reflector extending there between. An exhaust hanger is rigidly coupled to the structure and to the canopy proximate the exhaust end, and rigidly receives the exhaust outlet. A burner hanger is coupled to the canopy proximate the burner end and is slidably coupled to the structure. The burner hanger receives the radiant tube therethrough. The burner hanger allows the burner and burner end of the canopy to slide relative to the structure to accommodate thermal expansion of the radiant tube and the canopy from the exhaust end towards the burner end.

Apparatus and method of heating and ventilating an enclosed area comprising a floor arranged as a number of floor zones. The method comprises providing a radiant heater spaced above each floor zone so as in use to direct heat downwards towards the floor; providing a ventilating air inlet spaced above at least part of each floor zone, the air inlet being at the same level as, or closer to, the floor than the radiant heater, the air inlet being arranged in use to draw-in a controllable quantity of air from outside of the enclosed area; providing a ventilating air outlet spaced above at least part of each floor zone, the air outlet being spaced further from the floor than the radiant heater and air inlet, the air outlet being arranged in use to extract a controllable quantity of air from inside of the enclosed area, wherein the method further comprises, for each floor zone, independently controlling the quantity of air being drawn in and extracted from said floor zone based on the sensed temperature inside and outside the enclosed space.

Apparatus and method of heating and ventilating an enclosed area comprising a floor arranged as a number of floor zones. The method comprises providing a radiant heater spaced above each floor zone so as in use to direct heat downwards towards the floor; providing a ventilating air inlet spaced above at least part of each floor zone, the air inlet being at the same level as, or closer to, the floor than the radiant heater, the air inlet being arranged in use to draw-in a controllable quantity of air from outside of the enclosed area; providing a ventilating air outlet spaced above at least part of each floor zone, the air outlet being spaced further from the floor than the radiant heater and air inlet, the air outlet being arranged in use to extract a controllable quantity of air from inside of the enclosed area, wherein the method further comprises, for each floor zone, independently controlling the quantity of air being drawn in and extracted from said floor zone based on the sensed temperature inside and outside the enclosed space.

A dark radiator includes a first burner, a fan and a radiant tube. The first burner is connected to a fuel gas supply, the fan is designed to supply the first burner with combustion air and the first burner is designed to output a flame into the radiant tube. The fuel gas supply is connected to a hydrogen source as a fuel gas source and a secondary burner is connected downstream in the radiant tube spaced apart from the first burner functioning as the primary burner in the flame direction. The fuel gas supply thereof is connected to a hydrogen source as a fuel gas source and the exhaust gas flow of the upstream primary burner is supplied to the secondary burner as combustion air.