A hydronic heating system that may depend on pressure in the system for smooth operation. The pressure may be monitored. Pressure in the system may indicate health of the heating system. Certain pressures or variations of pressures may indicate one or more conditions in the system which may be good or adverse. An example of an adverse condition may be leakage of fluid from the system. Analyzes of pressures detected in the heating system may be performed by a computer programmed to indicate conditions of the system that are reflected by the detected pressures.

An indoor unit for an air-conditioning apparatus includes a case, an air-sending fan, and a heat exchanger unit. The heat exchanger unit includes a plurality of heat-transfer pipes extending in a vertical direction and forming a plurality of refrigerant passages in a width direction of the case and an air flow direction, and a plurality of headers connected to both ends of the plurality of heat-transfer pipes to allow the refrigerant to flow between the plurality of heat-transfer pipes. The plurality of headers include a plurality of division headers dividing and connecting the plurality of heat-transfer pipes arranged in the air flow direction and connecting in parallel the plurality of heat-transfer pipes arranged in the width direction, and a return header connecting and turning back the plurality of divided refrigerant passages arranged in the air flow direction and connecting in parallel the plurality of heat-transfer pipes arranged in the width direction.

A component for connecting a hydraulic unit of a heating device, which includes at least one means for the attachment to a housing structure. The at least one means for the attachment to a housing structure is developed as a plug-in element. A device for connecting a hydraulic unit of a heating device, which includes at least one component for connecting a hydraulic unit of a heating device is also provided. The component is disposed so as to be exchangeable. A heating device, which has at least one hydraulic unit, is also described. The hydraulic unit is fixed in place on a housing structure of the heating device via an exchangeable component. A method for mounting a hydraulic unit of a heating device is also described.

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.

The two-section wooden enclosure (10) has a first section (40) including a top panel (18) secured to a plurality of mounting brackets (42A, 42B), and a second section (60) including a front panel (20) having a first side panel (22) and a second side panel (26) secured to opposed side ends (24, 28) of the front panel (20). The first section (40) is secured to a hydropic finned tube heater (59) and a vertical wall (12). The first and second side panels (22, 26) of the second section (60) are secured to the vertical wall (12) so that the front panel (20) is adjacent and below the top panel (18) to cover the finned tube heater (59). The second section (60) may be removed from the vertical wall (12) without removal of the first section (40) from the vertical wall (12).

A ceiling-embedded air conditioner includes a decorative panel, a turbo fan, a heat exchanger, a drain pan, an air suction path, air blowoff paths provided at four places along the sides of a virtual square surrounding the air suction path, and an air blowoff opening communicating with the air blowoff path. The air blowoff path is formed in a cuboidal shape having a pair of long side walls disposed with a predetermined space therebetween in parallel to the sides of the virtual square and a pair of short side walls connecting the ends of the long side walls. Airflow guide vanes are provided in the air blowoff paths to direct part of blown airflow toward the short side of the air blowoff opening.

A heating panel including a thermally conductive (e.g. metal) layer, a laminar heating element disposed over a framing-facing side of the thermally conductive layer, an insulation layer disposed over the laminar heating element, and a room-facing surface layer disposed over at least the room-facing side of the thermally conductive layer. A method for heating a room may include installing at least one heating panel on a ceiling of the room and providing power to the heating element to generate heat that radiates into the room. The panel may be part of a heating system including a controller, such as a thermostat, for regulating power to the heating panel. A plurality of heating panels or a plurality of heating zones in one or more of the panels may be independently controllable.

A capsule-type heater device is provided. According to the present invention, a heating means is made from silicon carbide such that the durability thereof can be improved compared with a heating means made from metals, and a heating means is arranged inside a pair of ceramic cases so as to improve heat exchange efficiency of a thermal medium including air, which passes through the ceramic cases, thereby maximizing energy efficiency.

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.

The heater device is provided with a heater main body, and radiates radiant heat from the heater main body toward an object. The heater main body includes a sheet-like heat generating layer that generates heat and radiates the radiant heat, and a sheet-like heat insulating layer that is disposed on the side opposite to the object of the heat generating layer. The heat insulating layer has a sheet-like first layer having voids and a sheet-like second layer having voids arranged side by side in a thickness direction of the heat insulating layer with respect to the first layer. A porosity of the second layer is higher than that of the first layer.