A faux fireplace having synchronized lighting. The faux fireplace includes a firebox having a video display generating a colored faux flame at the back of the firebox, a faux ember bed with lighting having user selectable colors along a bottom of the firebox and in front of the video display, and down-lighting generating user selectable colors. A user input allows a user to synchronize the colors of the faux flame, the faux ember bed lighting, and the down-lighting in a setting. The user input allows the user to save a plurality of settings such that the controller generates the synchronized colors upon a single user touch. The firebox has a shallow depth such that it can be mounted in many settings, such as on the ground or inserted in a wall.

A faux fireplace having synchronized lighting. The faux fireplace includes a firebox having a video display generating a colored faux flame at the back of the firebox, a faux ember bed with lighting having user selectable colors along a bottom of the firebox and in front of the video display, and down-lighting generating user selectable colors. A user input allows a user to synchronize the colors of the faux flame, the faux ember bed lighting, and the down-lighting in a setting. The user input allows the user to save a plurality of settings such that the controller generates the synchronized colors upon a single user touch. The firebox has a shallow depth such that it can be mounted in many settings, such as on the ground or inserted in a wall.

According to aspects of the embodiments, an integrated light and heat arrangement of low profile light-emitting diode (LED) fixture to harness both the light and the heat generated by the LEDs is described. New system architectures and example form factors are provided for the development of new LED fixtures for integrative lighting and heating arrangement to increase their overall luminaire system efficiency. The integrative lighting and heating arrangement of the LED fixture in low profile design can minimize interference of harvesting the heat from LEDs with their light output. The heat which would otherwise be wasted from LEDs is harvested for the purpose of heating up some nearby body, such as a body of air, or a component, or a lens to accomplish some benefits, including, for example, reduction in overall energy uses for space heating, cooling, and lighting and associated cost, and melting snow and de-icing on outdoor LED fixtures for safety and security.

A temperature controller is provided, which includes a first temperature sensor, a heater, a logic circuit, a watchdog circuit and a second temperature sensor. The first temperature sensor may detect the environmental temperature. The heater may be turned on after the temperature controller is turned on. The logic circuit may turn on the watchdog circuit after the environmental temperature is higher than the first temperature for the watchdog circuit to keep detecting whether the main circuit of an electronic device is turned on until the main circuit is turned on. The second temperature sensor may be turned on after the main circuit is turned on and then detect the environmental temperature. The logic circuit may turn off the heater after the second temperature sensor detects the environmental temperature is higher than a second temperature, or turn on the heater when the environmental temperature is lower than a third temperature.

The present disclosure relates to a heating ventilation and air conditioning (HVAC) system. The system includes a primary heat transfer loop configured to be disposed at least partially outside of a building, and the primary heat transfer loop includes a heat exchanger, a compressor configured to compress a refrigerant, where the refrigerant is reactive, a condenser configured to receive and condense the refrigerant, and an expansion device configured to reduce a temperature of the refrigerant. The system further includes a secondary heat transfer loop configured to circulate a two-phase fluid at least partially inside the building, wherein the two-phase fluid is less reactive than the refrigerant. The secondary heat transfer loop includes the heat exchanger, where the heat exchanger is configured to transfer energy from the two-phase fluid circulating in the secondary heat transfer loop to the refrigerant, and an evaporator configured to evaporate the two-phase fluid by exchanging energy with an air supply stream flowing across the evaporator.

The present disclosure relates to a heating ventilation and air conditioning (HVAC) system. The system includes a primary heat transfer loop configured to be disposed at least partially outside of a building, and the primary heat transfer loop includes a heat exchanger, a compressor configured to compress a refrigerant, where the refrigerant is reactive, a condenser configured to receive and condense the refrigerant, and an expansion device configured to reduce a temperature of the refrigerant. The system further includes a secondary heat transfer loop configured to circulate a two-phase fluid at least partially inside the building, wherein the two-phase fluid is less reactive than the refrigerant. The secondary heat transfer loop includes the heat exchanger, where the heat exchanger is configured to transfer energy from the two-phase fluid circulating in the secondary heat transfer loop to the refrigerant, and an evaporator configured to evaporate the two-phase fluid by exchanging energy with an air supply stream flowing across the evaporator.

A faux fireplace having a controller generating an imitation log crackling sound synchronized to an ember flicker of a faux log. The faux fireplace includes a video display displaying a video flame having releasing embers based on a video loop stored as a video file in memory. The controller generates the imitation log crackling sound for the displayed releasing embers as well. The type of crackling sounds and the volume of the crackling sound are different for each of tile faux logs to create an authentic visual and audio experience. The ember flickers are generated by lighting associated with each of the faux logs.

A faux fireplace having a controller generating an imitation log crackling sound synchronized to an ember flicker of a faux log. The faux fireplace includes a video display displaying a video flame having releasing embers based on a video loop stored as a video file in memory. The controller generates the imitation log crackling sound for the displayed releasing embers as well. The type of crackling sounds and the volume of the crackling sound are different for each of the faux logs to create an authentic visual and audio experience. The ember flickers are generated by lighting associated with each of the faux logs.

The vacuum steam heating system relates to the field of heat power, and specifically to energy saving technologies and is intended for autonomous heating of residential, public, industrial buildings and greenhouses, livestock farms, etc. In order to achieve the high-efficiency transfer of a thermal flow from a source of thermal energy, a vacuum steam method of heat transfer is used in conjunction of a closed evaporation-condensation cycle having a high rate of molar heat transfer via steam, with separate subsystems of condensate return and vacuum-creation and rarification control within the system, with the possibility of installing a heat supply point in a basement variant, floor-mounted variant and roof variant. The system reliability is achieved via the safe and uninterrupted operation, including in the presence of unsatisfactory levels of the system air-tightness (prior to eliminating leaks). The system efficiency reaches 89%, with 38% energy-carrier conservation.

The vacuum steam heating system relates to the field of heat power, and specifically to energy saving technologies and is intended for autonomous heating of residential, public, industrial buildings and greenhouses, livestock farms, etc. In order to achieve the high-efficiency transfer of a thermal flow from a source of thermal energy, a vacuum steam method of heat transfer is used in conjunction of a closed evaporation-condensation cycle having a high rate of molar heat transfer via steam, with separate subsystems of condensate return and vacuum-creation and rarification control within the system, with the possibility of installing a heat supply point in a basement variant, floor-mounted variant and roof variant. The system reliability is achieved via the safe and uninterrupted operation, including in the presence of unsatisfactory levels of the system air-tightness (prior to eliminating leaks). The system efficiency reaches 89%, with 38% energy-carrier conservation.