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 furnace includes a gas burner exposed to a heat-exchange tube. An inducer is fluidly coupled to the heat-exchange tube and configured to induce draft air through the heat-exchange tube. A regulator is fluidly coupled to the gas burner. A rollout shield is disposed adjacent to the gas burner. A rollout switch is disposed in the rollout shield. The rollout switch is electrically coupled to the regulator. At least one vent is formed through the rollout shield adjacent to the rollout switch. The vent provides a path for a rollout flame to the rollout switch. The at least one vent is disposed on at least two sides of the rollout switch.

A supply-water warming system includes a steam compression heat pump circuit, a heat recovery heat exchanger, a heat source fluid line in which heat source fluid flows in the heat recovery heat exchanger and the evaporator in this order, a water supply line in which supply water flows in the heat recovery heat exchanger and the condenser in this order, a refrigerant flow rate adjustment section controlled based on the superheat degree of gas refrigerant flowing into the compressor and configured to adjust a refrigerant flow rate, a supply water flow rate adjustment section controlled based on the tapping temperature of the supply water flowing out of the condenser and configured to adjust a supply water flow rate, and a control section configured to control the refrigerant flow rate adjustment section and the supply water flow rate adjustment section.

A tankless water heater and manifold system is provided. The system includes a self-contained unit for providing hot water distribution throughout the system. The unit includes a tankless water heater having a hot water outlet pipe with outlet ports that function as a built-in manifold for distributing water directly from the unit through hot water lines that connect each plumbing fixture in the system directly to the unit.

Provided is a hot-water supply device which stabilizes hot-water supply even at low water pressure. A process performed by a hot-water supply device includes: a step (S510) of detecting that hot-water supply performed by the hot-water supply device is stopped; a step (S520) of reading a set temperature of the hot-water supply from a memory; a step (S530) of calculating a target opening degree of a total water amount servo based on the read set temperature; a step (S540) of sending, to the total water amount servo, a command for setting an opening degree of a passage through which water flows from the total water amount servo into a heat exchanger to the target opening degree; and a step (S550) in which a stepping motor of the total water amount servo moves in response to the command.

Disclosed herein are water monitoring systems comprising a water condition monitor and a controller in communication with a water heater system. The controller can be configured to receive baseline water data, which can be indicative of one or more water properties measured by the water condition monitor and determine a normal operating range for each of the one or more water properties based on the baseline water data. The controller can receive operational water data from the water condition monitor and compare the operational water data to the normal operating range to detect an anomaly. The anomaly can be indicative of a value of the one or more water properties being outside of the normal operating range. In response to detecting the anomaly, the controller can output instructions for performing one or more corrective actions to correct the anomaly.

The present disclosure provides a method for controlling rate of heat delivery in a hydronic system, which includes receiving, by a control unit, at least a first temperature, a second temperature from two spatially separated points in the hydronic system and a flow rate. The two spatially separated points correspond to inlet of heat transfer device and outlet of heat transfer device. The method also includes calculating at predefined interval, by the control unit, an actual rate of heat delivery to the heat transfer device based on flow rate and temperature difference between the two spatially separated points. The control unit determines heat delivery rate difference between actual rate of heat delivery and target rate of heat delivery. The control unit adapts flow rate of fluid into inlet of heat transfer device based on heat delivery rate difference to maintain target rate of heat delivery in heat transfer device.

A method of operating a heating or cooling system, comprising (1) providing a heating or cooling apparatus comprising first and second heat exchangers, (2) providing a conduit module modularly coupled to the heating or cooling apparatus and adapted to be coupled to a plurality of fluid circuits for heating or cooling loads, and (3) operating a control system configured to operate the conduit module in a heating or cooling mode. The conduit module is positioned between the heating or cooling apparatus and the plurality of fluid circuits. The conduit module comprises first, second, and third supply conduits and first, second, and third return conduits, to convey first, second, and source fluids to and from respective first, second, and source fluid circuits. The conduit module comprises first, second, third, and fourth three-way valves to selectively regulate flow of the first, second, and source fluids.

A heating, ventilation, and air conditioning (HVAC) system may be zoned into one or more zone. The HVAC system may include HVAC components, sensors, and one or more register vents that may include vent dampers (e.g., electronically controllable vent dampers or manually operated vent dampers). Opening and closing of the vent dampers may facilitate creating zones or sub-zones in the HVAC system configuration. An HVAC control system may receive a request for conditioned air in one or more of the zones, determine a damper setting for at least one of the vent dampers, communicate the determined damper setting to a vent damper or user interface, determine which HVAC components should be active, if any, and/or provide controls signals to activate or keep active the HVAC components that are determined to be active.

A burner for use with an igniter for firing a flame into a heat-exchanger includes a body having a sidewall that defines an interior chamber. A first opening in the body receives a pre-mixed mixture of air and fuel. A second opening in the body is in fluid communication with the first opening. A distributor connected to the body closes the second opening. The distributor includes a first portion and at least one curved second, portion provided on the first portion. Each second portion includes a plurality of first perforations in fluid communication with the first opening in the body. The first perforations of one second portion are positioned adjacent to the igniter such that ignition of the pre-mix mixture flowing through the first perforations results in a flame through the second portion.