Abstract: A boiler gas flow distribution fin includes an elongated flow distribution fin protruding from a back wall of a flow distribution channel into a hot gas flow path from a boiler combustion chamber. The flow distribution fin can include a leading segment with a leading ridge, a medial segment with a medial ridge, and a trailing segment with a trailing ridge. A gap between the fin ridges and a set of convective fins in an adjacent flue passageway segment can vary from a larger gap at the leading ridge to a smaller gap at the trailing ridge, transitioning along the medial ridge. The flow distribution fin can aid in directing a hot gas flow from a combustion chamber into the flue passageway segment, resulting in a substantially balanced mass flow rate through each of a series of flue passageway sections.

Abstract: A system and method for controlling one or more appliances includes a control system where one appliance is in a condition such as having operated at full capacity for a predetermined period of time, and activation signal is sent to a secondary appliance. Appliances may be linked together to control each other, so that when a second appliance is operating at full capacity a third appliance is activated and so on.

Abstract: A control system and method for environmental devices such as heating and cooling devices provides a control system for controlling the environmental device. The control system has a first condition sensor for sensing a first condition of the environment, a memory for recording the sensed first condition at predetermined intervals, a clock associated with the controller that supplies time data, a controller for activating and/or deactivating the environmental device, a memory for storing data relating to the sensed condition, data relating to events of activating and/or deactivating the environmental device and time data, and a processor that controls the activation and deactivation events of the controller based on data including the stored time, activation event, and condition data.

Abstract: A controller for a waste water heat recovery system includes a processor configured to process data received from sensors. The controller receives data from a cold water sensor, a second receiver for receiving data from a hot water sensor and a third receiver for data from a waste water sensor. Further, the controller transmits a controller to a water flow director. Other embodiments of the invention may include a method controlling recovery of waste water heat, including detecting a water temperature of various locations and hot water supply and dispensing system flowing dispensed hot water through a heat exchanger to heat water flowing into a hot water supply and controlling a water director that can selectively supply water to the heat exchanger and the disposal system based on the detected water temperatures.

Abstract: A system and method for controlling one or more appliances includes a control system where one appliance is in a condition such as having operated at full capacity for a predetermined period of time, and activation signal is sent to a secondary appliance. Appliances may be linked together to control each other, so that when a second appliance is operating at full capacity a third appliance is activated and so on.

Abstract: A boiler gas flow distribution fin includes an elongated flow distribution fin protruding from a back wall of a flow distribution channel into a hot gas flow path from a boiler combustion chamber. The flow distribution fin can include a leading segment with a leading ridge, a medial segment with a medial ridge, and a trailing segment with a trailing ridge. A gap between the fin ridges and a set of convective fins in an adjacent flue passageway segment can vary from a larger gap at the leading ridge to a smaller gap at the trailing ridge, transitioning along the medial ridge. The flow distribution fin can aid in directing a hot gas flow from a combustion chamber into the flue passageway segment, resulting in a substantially balanced mass flow rate through each of a series of flue passageway sections.

Abstract: A system and method for reducing NOx emissions in a hydrocarbon fired burned is provided. The method and apparatus selectively recirculate exhaust gases from the burner into the burner inlet gases to achieve a desired NOx output.