Radiant furniture made of a concrete mix includes one or more heating elements or hot water supplied hydronic tubing that provide comfortable radiant heat. Tabletops can be heated to a temperature that is comfortable for people seated at the table. Other tabletops can be heated to a lower temperature for use in a greenhouse. Benches and seats can be heated to provide comfortable heated seating. Combinations can also be used together, such as a heated tabletop with heated seats. A controller senses the temperature of the furniture and the ambient temperature, then applies power to one or more heating elements in the furniture according to programmed temperature thresholds to provide comfortable radiant heat from the furniture.

A micro multi-array heater and a micro multi-array sensor provided with the micro multi-array heater are provided. The micro multi-array heater includes a substrate and a heater electrode formed on the substrate. The heater electrode includes a first heater electrode having a first heat generation pattern and a second heater electrode having a second heat generation pattern. The first heat generation pattern and the second heat generation pattern are formed to have different heat generation amounts.

The present invention involves calibrating a control system to enable resistance-based control of a heat tracing circuit, that includes characterizing a piece of heat trace to determine a relationship between resistance and temperature, allowing for more precise control. Also described are different methods for practical resistance-based control of a heat trace system. Further described are several methods to monitor heat trace: including methods to enhance monitoring capabilities using a system operating model; comparison to historical operating data; and inclusion of information from external sources. Also provided is a method by which a piece of heat trace of unknown length and power factor can be controlled using the resistance-based method when other system information is available.

A refrigerator planar heating element is arranged inside a refrigerator to radiate heat. The refrigerator planar heating element includes a defrosting planar heating element including a first substrate having one surface on which a first pattern for radiating heat is printed with conductive ink, a second substrate having one surface on which a second pattern for radiating heat and having the same form as the pattern of the first substrate is printed with conductive ink, and an adhesive layer performing bonding such that the patterns of the first substrate and the second substrate are overlapped in a vertical direction. The invention has heating performance more excellent than that of conventional heating elements, and applies an inverse current patterning technique so as to make a current flow in opposite directions at both surfaces of a substrate, thereby effectively shielding electromagnetic waves.

The present disclosure relates to a massage stone heater, and belongs to the technical field of massage apparatuses. In the present disclosure, a user issues an instruction by means of operating the button of the controller, so that the circuit board in the controller supplies power to heating mechanisms inside the heating plates; the heating mechanisms generate heat after being powered on; and the heat of the heating mechanisms is conducted to the massage stones and the massage oil bottle through metal heat conduction plates of the heating plates.

A system for controlling heating of a screed plate includes screed plate disposed along the paving material delivery path. A first temperature sensor is operative to monitor a screed plate temperature and a second temperature sensor along the paving material delivery path is operative to monitor an actual paving material temperature of a paving material being applied to a work surface. A controller is configured to determine an estimated paving material temperature adjacent the screed plate based upon the actual paving material temperature and operate a heater to maintain the screed plate temperature within a temperature variation range relative to the estimated paving material temperature.

Heating systems, methods for manufacturing heating systems, and methods for using heating systems are provided. A heating system includes a nano-layer a first polymer layer contacting and extending along a first side of the nano-layer, and a second polymer layer contacting and extending along a second side of the nano-layer. The seat heater also includes lead wires connected between the nano-layer and a heater control system operatively connected to a power supply. The control system may be controlled using an application programming interface running on a mobile electronic device. The nano-layer, the first polymer layer, and the second polymer layer form a flexible sheet that is attached to or incorporated in an item to be heated.

The present disclosure relates to a control circuit for an electric blanket. The control circuit includes a main control circuit composed of a relatively low voltage power conversion circuit, a heating main loop, a micro control unit (MCU) main control circuit, an active/passive protection circuit and a main power carrier serial port circuit. The control circuit further includes a sub-control circuit. The sub-control circuit is composed of an auxiliary power carrier serial port circuit, a sub-control power extraction circuit, an MCU sub-control circuit, a function key input circuit and a display circuit. The main control circuit and the sub-control circuit exchange operating state information and user control information through the main power carrier serial port circuit and the auxiliary power carrier serial port circuit to implement heating control of the electric blanket in a mutually cooperative control mode.

A system for controlling heating of a screed plate includes screed plate disposed along the paving material delivery path. A first temperature sensor is operative to monitor a screed plate temperature and a second temperature sensor along the paving material delivery path is operative to monitor an actual paving material temperature of a paving material being applied to a work surface. A controller is configured to determine an estimated paving material temperature adjacent the screed plate based upon the actual paving material temperature and operate a heater to maintain the screed plate temperature within a temperature variation range relative to the estimated paving material temperature.

A system for controlling heating of a screed plate includes screed plate disposed along the paving material delivery path. A first temperature sensor is operative to monitor a screed plate temperature and a second temperature sensor along the paving material delivery path is operative to monitor an actual paving material temperature of a paving material being applied to a work surface. A controller is configured to determine an estimated paving material temperature adjacent the screed plate based upon the actual paving material temperature and operate a heater to maintain the screed plate temperature within a temperature variation range relative to the estimated paving material temperature.