This invention relates to a heater. A combustion air blower feeds combustion air to a burner device. The burner device burns a gas-air mixture from the combustion air and a fuel and serves for heating air. A circulating air blower discharges heated air from the heater. A control device acts on at least one component of the heater, wherein a night mode parameter set associated with an operation of the heater in a night mode and a default parameter set are stored in a data storage device. After an activation of the night mode, the control device accesses the night mode parameter set and uses the same for acting on the component. The night mode parameter set effects a reduction of background noise generated by the heater.

A system and method for heating a vehicle component is provided and comprises one or more cells for retaining a fluid, each cell including one or more electrode pairs positioned therein. The one or more cells are arranged along a flow path including an inlet to and an outlet from the one or more cells. A controller is provided which is configured to: regulate the flow of the fluid from the inlet to the one or more cells; determine at the one or more cells the electrical conductivity, or specific conductance, of the fluid; determine from the electrical conductivity, or specific conductance, of the fluid a voltage to apply from a high voltage battery, or an external power source located outside of the vehicle, across the one or more electrode pairs at a current sufficient to heat the fluid therein; and pass the current from the one or more electrode pairs to the fluid to produce a heated fluid, wherein the heated fluid transfers heat to one or more vehicle components via the outlet.

This invention relates to a heater. A combustion air blower feeds combustion air to a burner device. The burner device burns a gas-air mixture from the combustion air and a fuel and serves for heating air. A circulating air blower discharges heated air from the heater. A control device acts on at least one component of the heater, wherein a night mode parameter set associated with an operation of the heater in a night mode and a default parameter set are stored in a data storage device. After an activation of the night mode, the control device accesses the night mode parameter set and uses the same for acting on the component. The night mode parameter set effects a reduction of background noise generated by the heater.

This invention relates to a heater. A combustion air blower feeds combustion air to a burner device. The burner device burns a gas-air mixture from the combustion air and a fuel and serves for heating air. A circulating air blower discharges heated air from the heater. A control device acts on at least one component of the heater, wherein a night mode parameter set associated with an operation of the heater in a night mode and a default parameter set are stored in a data storage device. After an activation of the night mode, the control device accesses the night mode parameter set and uses the same for acting on the component. The night mode parameter set effects a reduction of background noise generated by the heater.

A hot water supply system includes a plurality of hot water supply devices. The plurality of hot water supply devices include a first hot water supply device having a first hot water supply wireless communication module and a first power supply part configured to turn on and off power to the first hot water supply wireless communication module, and a second hot water supply device having a second hot water supply wireless communication module and a second power supply part configured to turn on and off power to the second hot water supply wireless communication module. Each of the plurality of hot water supply devices is configured to turn on power to their respective wireless communication module when there is a need to perform wireless communication, and turn off power to their respective wireless communication module when there is no need to perform wireless communication.

A hot water supply system includes a plurality of hot water supply devices. The plurality of hot water supply devices include a first hot water supply device having a first hot water supply wireless communication module and a first power supply part configured to turn on and off power to the first hot water supply wireless communication module, and a second hot water supply device having a second hot water supply wireless communication module and a second power supply part configured to turn on and off power to the second hot water supply wireless communication module. Each of the plurality of hot water supply devices is configured to turn on power to their respective wireless communication module when there is a need to perform wireless communication, and turn off power to their respective wireless communication module when there is no need to perform wireless communication.