Abstract: A heating system (100), a controller (110) for a heating system and a method of controlling a heating system (100) suitable for responding to grid stress events are disclosed. A heating system (100) comprises a tank (104) for holding water; a heat pump (102) arranged to provide heat to the tank (104); an electric heating element (108) disposed in the tank for heating water; and, a controller (110) configured to: control electric power from an electric power grid to the heat pump (102) and the electric heating element (108); detect a grid stress event; determine a heat pump energy penalty for providing heat in response to the grid stress event under a present operating condition; and, vary, in dependence on the determined heat pump energy penalty, a power provided to the electric heating element (108).

Abstract: A heating system is provided. The heating system includes a heat pump to provide heat. The heating system includes a circuit of heat transfer fluid to transfer heat to or from the heat pump. The heating system includes a space heating system configured to transfer heat from the heat transfer fluid to an environment. The heating system includes a water heating system comprising a water tank for storing hot water to be provided to a user, a cold water inlet, a hot water outlet for drawing off hot water for supply to a user, and a heat exchanger configured to exchange heat between the heat transfer fluid and water from the cold water inlet. The heating system includes a means of sensing a tank status, the tank status being indicative of a quantity of thermal energy stored in the tank. The heating system includes a controller adapted to control the transfer of heat to and from the tank in dependence on the tank status.

Abstract: Systems, kits of parts and methods for heating water are provided. A tank is provided for holding water and a heat pump provides heat to water of the tank via a heat exchanger. A variable speed pump pumps water from the tank to the heat exchanger and back to the tank and a three port valve is arranged to provide a flow path from the heat exchanger either to the top of the tank or to the bottom of the tank depending on a flow rate. A controller controls the variable speed pump depending on a hot water demand.

Abstract: A controller interface (B12) between a hot water tank controller (B13) and a heat pump controller (B2) in a heating system is provided. The controller interface (B12) comprises a response module configured to receive, from the hot water tank controller (B13), a first signal indicative of a temperature. The response module provides a response signal based on the first signal and a temperature response characteristic and communicates the response signal to the heat pump controller (B2). The controller interface (B12) enables interoperability of a heat pump controller (B2) and a legacy hot water tank system and hot water tank controller (B13).

Abstract: A heating system (100), a controller (110) for a heating system and a method of controlling a heating system (100) suitable for responding to grid stress events are disclosed. A heating system (100) comprises a tank (104) for holding water; a heat pump (102) arranged to provide heat to the tank (104); an electric heating element (108) disposed in the tank for heating water; and, a controller (110) configured to: control electric power from an electric power grid to the heat pump (102) and the electric heating element (108); detect a grid stress event; determine a heat pump energy penalty for providing heat in response to the grid stress event under a present operating condition; and, vary, in dependence on the determined heat pump energy penalty, a power provided to the electric heating element (108).

Abstract: A system configured to be installed in an aircraft, the system comprising a first functional domain and a second functional domain. The first and second functional domains are configured to provide a first and service, respectively. The system further comprises a wireless access point configured to be externally managed by a controller and configured to communicate with a mobile terminal. The system comprises a controller configured to communicate with the wireless access point, the first and the second functional domains, configured to control the wireless access point and configured to control wireless access of the mobile terminal to the first and second functional domains. Further, the use of such a system in an aircraft, an aircraft comprising such a system and a method of controlling wireless access of a mobile terminal to a first functional domain and a second functional domain in an aircraft are disclosed.

Abstract: A system configured to be installed in an aircraft, the system comprising a first functional domain and a second functional domain. The first and second functional domains are configured to provide a first and service, respectively. The system further comprises a wireless access point configured to be externally managed by a controller and configured to communicate with a mobile terminal. The system comprises a controller configured to communicate with the wireless access point, the first and the second functional domains, configured to control the wireless access point and configured to control wireless access of the mobile terminal to the first and second functional domains. Further, the use of such a system in an aircraft, an aircraft comprising such a system and a method of controlling wireless access of a mobile terminal to a first functional domain and a second functional domain in an aircraft are disclosed.