The wireless wall thermostat of the present invention utilizes a push-contact mechanical system that allows a user to raise or lower the temperature within a space by applying a force on the top or bottom center of the front of the thermostat. The perpendicular force applied by the user generates a moment arm around pivot connectors, which rotates the thermostat clockwise or counter-clockwise. When rotated clockwise or counter-clockwise, contact buttons attached to the back of the thermostat come into contact with the trigger tabs of a stationary trigger plate mounted to a wall through use of an electromagnetic attraction between a steel disc and a magnet. When the trigger tabs press the contact buttons, the contact buttons send a signal to the central processing unit of the thermostat's internal circuit board to modulate the temperature setting. In addition, the wireless wall thermostat can be detachable by utilizing a magnetic release smart mount.

A control device causes an air conditioning apparatus to execute a temperature adjustment operation of causing a first temperature to approach a first target temperature at a target time point and causing a second temperature to approach a second target temperature at the target time point. The first temperature is a surface temperature of a partition portion including at least one of a floor, a wall, and a ceiling facing a target space. The second temperature is an indoor temperature of the target space.

A micro-combined heat and power (mCHP) system includes a liquid cooled variable speed genset that is located to the exterior of a building and that is provides heat and power to the interior of the building. The genset may be configured to output an electrical supply of between approximately between 500W and 40 kW. A coolant loop may extend from the exterior genset to the interior of a building and is configured to reclaim heat from one or more sources of waste heat at the engine, generator, oil and/or exhaust. The reclaimed heat is then transferred, directly or indirectly, to the air flow path of a building heating system. In one embodiment, the reclaimed heat is transferred to a liquid circuit via a liquid-to-liquid heat exchanger and thence to the cold air intake of a forced air furnace via a liquid-to-air heat exchanger. A thermostat may control heat transfer from the mCHP to the heating system.

A heated water device is disclosed. The heated water device includes a cold water tank configured to receive cold water from a cold water source and a hot water tank configured to receive water from a hot water source and discharge water to the cold water source. The heated water device includes a pump configured to selectively pump water from the hot water source and to the hot water tank and a valve configured to selectively permit water to flow from the hot water tank to the cold water source. The heated water device includes a thermoelectric generator configured to generate electrical energy from a water temperature differential between cold water in the cold water tank and heated water in the hot water tank.

A water heating system can include a water heater having a tank, and a first temperature sensor disposed toward a top end of the tank to measure a first temperature and a second temperature sensor disposed toward a bottom end of the tank to measure a second temperature. The water heating system can further include a controller communicably coupled to the first temperature sensor and the second temperature sensor, where the controller determines an amount of heated water in the tank based on a plurality of algorithms and measurements made by the first and second temperature sensors. The plurality of algorithms solves for at least one calculated temperature for at least one point between a first location of the first temperature sensor and a second location of the second temperature sensor, where the at least one calculated temperature is used to determine the amount of heated water in the tank.

Disclosed herein is a water heating system including a water heater having a tank, and a first temperature sensor disposed toward a top end of the tank to measure a first temperature and a second temperature sensor disposed toward a bottom end of the tank to measure a second temperature. The water heating system can further include a controller communicably coupled to the first temperature sensor and the second temperature sensor, where the controller determines an amount of heated water in the tank based on one or more algorithms and measurements made by the first and second temperature sensors.

A heat pump system includes a compressor coupled to a first variable speed motor, a first heat exchanger, a geothermal heat exchanger, a fan coupled to a second variable speed motor, and an expansion device. The heat pump system also includes a refrigerant loop which fluidly couples the compressor, the geothermal heat exchanger, the expansion device, and the first heat exchanger. The heat pump system also includes a controller configured to adjust a first speed of the first variable speed motor, a second speed of the second variable speed motor, and an operation of the expansion device based upon a thermal energy demand.

A fluid heating system intended for use in recreational vehicles that circulates glycol in a system loop with various heat sources and other devices that distribute this heat to an enclosure or a domestic water system. It has a system controller operationally connected to a remove tactile display unit that allows for the input of the operation parameters to the system controller. The control unit is operatively connected for data and signal transfer to the user's cell phone via a non-internet connected localized wi-fi network. This provides the user with system status information, fault codes and allows selected operational functions and resets to be remotely initiated that heretofore required local manipulation. It also incorporates altimeter to allow the furnace controller to maximize its burn efficiency.

The purpose of the present invention is to provide a hot water supplying apparatus which enables supply of hot water by utilizing waste heat of a pipe and a boiler as a heat source if there is a small quantity of residual hot water to use therefor, the residual hot water being required when using hot water of an instantaneous boiler, and a method for utilizing waste heat of a hot water supplying apparatus. The hot water supplying apparatus of the present invention for achieving said purpose comprises: a sensible heat exchanger for heating a heating fluid by means of combustion heat from a burner; a hot water supply heat exchanger for generating hot water by means of a heat exchange between the heating fluid heated by the sensible heat exchanger and direct water, and supplying the hot water to a faucet; and a pump for circulating the heating fluid via a heating fluid flow path which connects the sensible heat exchanger and the hot water supply heat exchanger, wherein the hot water supplying apparatus comprises: a signal reception unit for receiving a final hot water use signal; and a control unit for stopping the operation of the burner on the basis of the signal received by the signal reception unit and controlling the pump to circulate the heating fluid.

A wireless water control system includes a water heater connected to a water supply, a water line sensor device connected to a water line in fluid communication with the water heater, a wireless flow control valve connected to the water line, and at least one outlet faucet in fluid communication with the water line. The components are in wireless communication via a shared wireless network such as a Bluetooth connection. The control circuit receives user information including one or more parameters from an external device via the wireless network. The control circuit wirelessly activates the outlet faucet via a command sent through the wireless network, such that the outlet faucet emits water in a manner corresponding to the received user information. The outlet faucet also includes a speaker and microphone which facilitates voice activation. The speaker can emit music, text-to-speech for written information received from the internet, and other sounds.