Apparatus, systems, and methods to monitor and control operation of an aquatic facility comprising a water basin, a water supply subsystem, and other subsystems. A simplified, centralized, scalable control subsystem comprises a base controller including with inputs and outputs and a human-machine interface. Sensors are operatively connected to the base controller and adapted to directly or indirectly sense one of a pre-selected set of parameters related to the operation of the aquatic facility. Actuators are operatively connected to the base controller and adapted to directly or indirectly actuate one of a pre-selected set of operations of the aquatic facility. The base controller is programmable relative to setpoints or other operational criteria of the aquatic facility; and actuation of at least a base subset of the actuators and graphical representation of the facility and the water supply, and the at least one subsystem, and the pre-selected operations of the aquatic system.

A heating assembly for a vapour generating device includes a heating device arranged to heat, in use, a body, the body including a vaporisable substance located in use in a heating compartment of the heating assembly, the heating assembly being arranged to supply, in use, power to the heating device to heat the body; a temperature sensor arranged to monitor, in use, a temperature related to heat generated from the body, temperature information related to heat generated from the body being determinable from the monitored temperature; and a memory accessor arranged to access, in use, a memory that holds a relationship between the temperature information, the amount of power supplied to the heating device or the profile of power supplied to the heating device, and at least one condition including an age of the body, or a type of the body, or the presence of the body.

A system for heating water to improve safety and efficiency. The system may have normal operation measured in time. After a time of normal operation, a water temperature setpoint may be checked. If the setpoint is not at a certain level, normal operation may continue. If the setpoint is within the certain level, water temperature may be measured. If the water temperature is less than a desired level, one or more draws of water may be measured for a preset temperature drop. If the draws do not meet the temperature drop, a return to check the setpoint may be made. If the draws meet the temperature drop, the setpoint may be reduced and a time of normal operation may be measured to determine whether a burn cycle occurs within the time. If not, normal operation may continue; but if so, a return to check the setpoint may be made.

An energy cutoff apparatus for a water heating system includes a safety cutoff circuit and a presence detection circuit. The safety cutoff circuit receives a temperature signal from a temperature sensor. The temperature signal is indicative of whether a temperature of water in the water heating system within a permissible temperature range. The safety cutoff circuit disables a safe operation current branch when the temperature signal indicates the water temperature is outside the permissible water temperature range. The presence detection circuit detects a presence of the temperature sensor and disables a presence detection current branch if the temperature sensor is absent. Switches can power heating elements of the water heating system responsive to the safe operation current branch being enabled and the temperature sensor being present and can disable the heat elements responsive to the safe operation current branch being disabled or the temperature sensor being absent.