Exemplary embodiments are disclosed of controls including circuit assemblies configured for determining igniter, inducer relay, and igniter relay faults. In exemplary embodiments, a control for a system includes an input configured to receive a control signal, an inducer relay, an igniter relay, and a circuit assembly. The circuit assembly is configured to be coupled to the inducer relay, the igniter relay, and an igniter of the system. The circuit assembly comprises a plurality of diodes and is configured to enable detection of and distinguishing between a failure of the igniter, a failure of the inducer relay, and a failure of the igniter relay as determined by a waveform of the control signal at the input of the control for a given one of a plurality of operational states of the control.

The showerhead includes a main body; a power generator disposed in the main body; a power monitor module, disposed in the main body, electrically connected to the power generator, and configured for monitoring quality of power from the power generator and switching on/off power supply of the power generator; and a control module, disposed in the main body, electrically connected to the power monitor module, and configured for controlling functions.

A burner supporting primary and secondary combustion reactions may include a primary combustion reaction actuator configured to select a location of the secondary combustion reaction. A burner may include a perforated flame holder structure configured to support a secondary combustion reaction above a partial premixing region. The secondary flame support location may be selected as a function of a turndown parameter. Selection logic may be of arbitrary complexity.

A method is provided for operating a fuel-operated vehicle heater (10) during a start phase of combustion operation. The heater includes a combustion air feed device (26) feeding air and a fuel feed device (22) feeding fuel (B) to a burner area (12) with a combustion chamber (16). An electrically energizable ignition element (32) ignites a fuel/air mixture formed. The method includes energizing the ignition element (32) in a preheating phase prior to the fuel feed, at a time of entry into an ignition phase, detecting electrical resistance of the ignition element (32) and determining a desired resistance based on the electrical resistance of the ignition element (32) detected and operating the ignition element (32) in a resistance-regulating operating mode during the ignition phase such that an actual resistance of the ignition element (32) is in the range of the determined desired resistance of the ignition element (32).

Disclosed herein is an ignition system for igniting a flame in a combustion chamber comprising a conduit secured to a windbox wall of the combustion chamber; where the conduit includes a fuel conduit for delivering fuel to the combustion chamber; and a single ignitor and flame rod assembly having a first end and a second end; where the first end comprises a high energy ignitor tip; where the second end is in electrical communication with an electrical power source; where the electrical power source comprises a spark transformer that comprises a primary winding and a secondary winding; a flame monitoring ignitor; where the flame monitoring ignitor is in direct electrical communication with a ground contact and with a low voltage side of the secondary winding; where the flame monitoring ignitor is disposed between the low voltage side of the secondary winding and a ground contact; and a transient voltage suppressor; that is disposed in parallel with the flame monitoring ignitor.

The showerhead includes a main body; a power generator disposed in the main body; a power monitor module, disposed in the main body, electrically connected to the power generator, and configured for monitoring quality of power from the power generator and switching on/off power supply of the power generator; and a control module, disposed in the main body, electrically connected to the power monitor module, and configured for controlling functions.

The ignition system includes a mini hydroelectric generator module connecting an inlet pipe for generating electricity by water flow passing through the inlet pipe and it; a power quality monitoring module electrically connecting the mini hydroelectric generator module for monitoring output electricity quality of the mini hydroelectric generator module and switching on/off the electricity; an ignitor electrically connecting the power quality monitoring module for receiving electricity from the power quality monitoring module to ignite; and an electronic valve electrically connecting the power quality monitoring module for receiving electricity from the power quality monitoring module to switch on/off a gas pipe.

Actuation of timed combustion events that may be emitted from an edifice. A system includes a mobile edifice, a controller, a fuel source comprising a fuel, and a combustion device mounted to the mobile edifice. The combustion device includes a heat source in electronic communication with the controller, and a gate in electronic communication with the controller. The system is such that the gate opens to permit fuel to flow from the fuel source to toward the heat source, and such that the controller actuates the heat source and the gate to trigger a combustion event.

A gas appliance includes a burning device, an igniting assembly, at least one additional device, and a modular control device. A manufacturing method of the modular control device includes steps below. First, provide a main circuit module which controls the igniting assembly. Second, provide a plurality of additional circuit modules, wherein at least one of the additional circuit modules corresponds to the at least one additional device. Each of the additional circuit modules is detachably connected to the main circuit module. Finally, select at least one of the additional circuit modules which corresponds to the at least one additional device, and connect the additional circuit modules to the main circuit module. Thus, the main circuit module and the selected at least one additional circuit module constitute the modular control device to satisfy a specific kind of gas appliance. Whereby, the manufacturing method lowers the inventory pressure of the control devices.

A combustion heat source device may include: a housing; a burner housed within the housing; a combustion fan configured to supply air for combustion to the burner; a heat exchanger configured to be heated by combustion of the burner; a temperature sensor configured to detect a temperature of fluid flowing into or out of the heat exchanger; and a controller configured to operate the fan when the burner is operating. A rotation speed of the fan when the burner is operating may correspond to a heating amount by the burner. The controller may be configured to increase the heating amount by the burner when the heating amount is within a first heating amount range and the temperature detected by the temperature sensor exceeds a first reference temperature corresponding to the first range, so that the heating amount enters a second heating amount range that is higher than the first range.