A sheet heater structured so that heating wire is fixed to air-passing base material by sewing. This structure can provide a sheet heater that has improved durability of heating wire 2 against the load imposed on the seat during sitting, comfortable feeling of sitting in the seat, and high air-passing capability.

A tank heater control that will control a heater used for heating pressurised tanks over a broad range of temperatures. The system uses a sensor for providing a signal to a processor, in which the signal is indicative of flow of gas from the tank. The processor energizes the heater when gas flows from the tank. In various embodiments, the sensor may be a flow sensor on an outlet from the tank, temperature sensors that detect a difference in temperature of the tank from ambient temperature, or a ...

A heater for heating elongated objects includes an elongated strip of flexible material having first and second ends and elongated opposite side edges defining a width therebetween. The strip of material comprises a fiber reinforced elastomeric material having at least a first portion that is set in a spiral. The heater also includes at least one elongated electrically conductive heating element imbedded in the elongated strip of elastomeric material. A thermostat is operably coupled to the heat...

The water includes a tank 10 which includes dual cold water inlets 21a, 21b. One or other of the cold water inlets 21a, 21b is in use connected to a cold water supply line. The cold water inlets 21a, 21b extend through inlet pipes 21c, 21d within the tank 10 and join at a cold water junction 22. Extending upwardly for cold water is a tempering tube or pipe 31, 31a, 31b that extends within the tank to the upper region of the tank 10 where the cold water can mix with hot water being drawn from the...

The present invention provides a cooking heater which continues cooking without apparently stopping the operation of the cooking heater when a door switch is momentarily turned OFF due to a shock during operation of the cooking heater though the door is not actually opened as far as continuation of the OFF-state is within a predetermined range. Upon receiving a door opening signal, a timer of control means starts counting and when a first period lapse judgment section judges that the count time ...

The present invention provides a burner (10) for a heater for combustion of a hydrocarbon liquid. The burner (10) comprises a combustion chamber having a combustion zone (17) for combusting the hydrocarbon liquid and at least one tank portion (13, 15) for containing an amount of the hydrocarbon liquid. The or each tank portion (13, 15) is positioned adjacent the combustion zone (17) and arranged to feed the hydrocarbon liquid into the combustion zone (17). The or each tank portion (13, 15) is at...

A ceramic substrate for a ceramic heater includes aluminum nitride, silicon nitride or silicon carbide as the main component for increasing mechanical strength and improving thermal shock resistance, and a proper additive for controlling thermal conductivity. A temperature gradient from a heating element to a power feeding electrode is reduced by providing a dimensional ratio of the substrate effective for preventing oxidation of a power feeding contact that contacts the electrode of the heating...

In a water heater, an outer casing includes a hollow flue tube that extends vertically from an inner periphery of a bottom wall thereof, and an outer surrounding wall that extends uprightly from an outer periphery of the bottom wall and that cooperates with the flue tube to confine a receiving space. A heat-conducting unit is mounted inside the receiving space so as to configure the receiving space with isolated first and second chambers. The first chamber is filled with a thermal superconductor...

A ceramic heater (1) includes a ceramic substrate (2) having a heating surface (2a) for supporting and heating an object to be processed, a hearing element (6) provided in the substrate (2), and embossed portions (4) on the heating surface (2a) which contact the object. The number of the embossed portions (4) per unit area on the heat spot (3) is less than that on the rest of the heating surface (2a). When the average temperature of the heating surface (2a) is raised to reach a target temperatur...

An infrared heating unit which finds particular application in paper making equipment for coating drying and moisture profile control. In one embodiment, the heating unit comprises a housing and a heat resistant, porous ceramic matrix received in the housing having an inner surface, side walls and an external surface. The inner surface of the ceramic matrix and the housing cooperate to define a chamber. There is at least one resilient anchoring strip extending between the ceramic matrix and the ...