A settings data storage stores unique serial numbers and information regarding a plurality of patterns for alternately switching between normal operation for operating at high capacity and suppressed operation for operating at low capacity each unit time. A pattern specifier determines information for a pattern set in accordance with even and odd serial numbers. A water-heating heat amount determiner determines a heat amount necessary for water heating. A water heating scheduler establishes a water heating plan based on information regarding the pattern determined by the pattern determiner and the water-heating heat amount as determined by the water-heating heat amount determiner. A water heating controller alternately switches between normal operating and suppressed operation to heat water in accordance with the water heating plan established by the water heating scheduler.

A fuel-fired heating appliance has two fuel flow paths to a burner, each actuatable to a closed state and to an open state. A heat exchanger is in fluid communication with an area proximate the burner. A controller executes the steps: (a) while the first fuel flow path is closed, opening the second flow path; (b) following ignition of fuel flowing from the second flow path, opening the first fuel flow path; and (c) following step (b), closing the second fuel flow path while opening the first fuel flow path.

A hydronic water heating system heats water for various types of heat emitters. A boiler assembly includes a user interface which receives user-defined water temperature set point corresponding to a minimum outdoor temperature, and an integrated controller generates a nonlinear outdoor reset curve between the user-defined set point and a second set point corresponding to maximum outdoor temperature for which heating is required, and regulates the boiler to heat water to a temperature corresponding to a set point along the nonlinear output reset curve and based on a detected outdoor temperature. The nonlinear outdoor reset curve may be generated based on aggregated heat output functions for various types of heat emitters. A linear outdoor reset curve may be generated between a maximum water temperature set point and the user-defined set point, having a slope equal to an instantaneous slope of the nonlinear outdoor reset curve at the user-defined set point.

In an immediate hot water supply operation mode in which a circulation pump is activated while a hot water supply faucet is closed, a water heating apparatus forms an immediate hot water supply circulation path by an inner path including a water entry path, a heat exchanger, and a hot water output path and an outer path bypassing the hot water supply faucet, as being combined. A controller stores as an actual flow rate value for each immediate hot water supply operation mode, a flow rate detection value by a flow rate sensor at predetermined timing, and calculates a flow rate learning value based on a plurality of stored actual flow rate values. When the flow rate detection value becomes larger than a criterion value set in accordance with the flow rate learning value, use of the hot water supply faucet is detected and the circulation pump is deactivated.

A thermostatic radiator valve (TRV) assembly or automatic temperature balanced actuator (ABA) assembly controls a manifold assembly through a push pin bearing mechanism. The push pin bearing mechanism comprises a push pin that moves in a linear direction responsive to rotational movement of a motor gear that is coupled through a helical gear. Rotational movement of the push pin is prevented by a ball bearing assembly. Movement of the push pin is transferred to a manifold pin, which in turn, controls the manifold assembly. Because the push pin moves in a linear rather than a rotational fashion, erosion of the mated manifold pin is substantially reduced with respect to transitional approaches.

An apparatus for heating water has a tank for storing water and an air conditioning system that defines a refrigerant flow path through which refrigerant flows. The refrigerant flow path passes through the heat exchanger so that refrigerant heat is contributed to the tank. A control system controls operation of the water heating apparatus.

A heating device, including at least one heating unit, which is configured to heat at least one fluid; at least one fluid supply line, which is provided for supplying the fluid to the heating unit for heating; at least one fluid discharge line, which is provided for discharging the fluid from the heating unit after the heating; and a control and/or regulating unit, which is configured to operate the heating unit in a pulsed manner, in at least one operating state, in order to set a particular temperature. The heating device includes a valve unit, which is configured to mix the fluid in the fluid discharge line with fluid from the fluid supply line, upstream from an outlet.

A heating device, including at least one heating unit, which is configured to heat at least one fluid; at least one fluid supply line, which is provided for supplying the fluid to the heating unit for heating; at least one fluid discharge line, which is provided for discharging the fluid from the heating unit after the heating; and a control and/or regulating unit, which is configured to operate the heating unit in a pulsed manner, in at least one operating state, in order to set a particular temperature. The heating device includes a valve unit, which is configured to mix the fluid in the fluid discharge line with fluid from the fluid supply line, upstream from an outlet.

A method of monitoring or controlling electronic devices and monitoring enclosures in which the electronic devices are installed includes receiving data related to one or more electronic devices registered with a device management system and associated with a user account; and generating a user interface for monitoring or controlling the conditions from a computing device. The user interface may include an image of a first enclosure that is associated with the user account; images of first one or more electronic devices in the one or more electronic devices that are installed in the first enclosure; and current conditions displayed on each of the images of the first one or more electronic devices reflecting aspects of the first enclosure that are controlled or monitored by the first one or more electronic devices.

In a joint water boiler-air/air heat pump air conditioning system coupled to a photovoltaic system and intended to air condition a closed environment formed by one or more rooms and comprising an electrical system to which electrical appliances are connected, an electronic control system is programmed to compute electrical power production of the photovoltaic system and electrical power consumption of the electrical appliances in the closed environment, and, based thereon, a surplus electrical power production of the photovoltaic system with respect to the electrical power consumption of the electrical appliances in the closed environment. If a surplus of electrical power production of the photovoltaic system is determined to exist with respect to the electrical power consumption of the electrical appliances in the closed environment, it may be determined how many indoor units of the hot/cold air/air heat pump system can be electrically supplied simultaneously with the electrical power surplus.