A network for an aircraft, comprising: a first fluid circuit and a plurality of modules (30A, B, C) in network communication with one another, each of the plurality of modules comprising: a first node for communicating a local temperature signal corresponding to a local temperature of a first fluid of the first fluid circuit; a second node for communicating a signal corresponding to operation of a heating element to selectively apply heat to the first fluid circuit; and a local controller in network communication with the first and second nodes and at least one of the plurality of modules, the local controller programmed to receive the local temperature signal, or another networked temperature signal, and operate the heating element in response thereto; characterised in that: upon loss of communication with the first node, the local controller is configured to communicate with a local controller in at least another one of the plurality of modules, such that the local controller in the at least another one of the plurality of modules provides the another temperature signal; and, optionally, upon loss of communication with the second node, the local controller is configured to communicate with a local controller in at least another one of the plurality of modules, such that the local controller in the at least another one of the plurality of modules operates a corresponding heating element. a first fluid circuit and a plurality of modules (30A, B, C) in network communication with one another, each of the plurality of modules comprising: a first node for communicating a local temperature signal corresponding to a local temperature of a first fluid of the first fluid circuit; a second node for communicating a signal corresponding to operation of a heating element to selectively apply heat to the first fluid circuit; and a local controller in network communication with the first and second nodes and at least one of the plurality of modules, the local controller programmed to receive the local temperature signal, or another networked temperature signal, and operate the heating element in response thereto; characterised in that: upon loss of communication with the first node, the local controller is configured to communicate with a local controller in at least another one of the plurality of modules, such that the local controller in the at least another one of the plurality of modules provides the another temperature signal; and, optionally, upon loss of communication with the second node, the local controller is configured to communicate with a local controller in at least another one of the plurality of modules, such that the local controller in the at least another one of the plurality of modules operates a corresponding heating element. a first node for communicating a local temperature signal corresponding to a local temperature of a first fluid of the first fluid circuit; a second node for communicating a signal corresponding to operation of a heating element to selectively apply heat to the first fluid circuit; and a local controller in network communication with the first and second nodes and at least one of the plurality of modules, the local controller programmed to receive the local temperature signal, or another networked temperature signal, and operate the heating element in response thereto; characterised in that: upon loss of communication with the first node, the local controller is configured to communicate with a local controller in at least another one of the plurality of modules, such that the local controller in the at least another one of the plurality of modules provides the another temperature signal; and, optionally, upon loss of communication with the second node, the local controller is configured to communicate with a local controller in at least another one of the plurality of modules, such that the local controller in the at least another one of the plurality of modules operates a corresponding heating element. upon loss of communication with the first node, the local controller is configured to communicate with a local controller in at least another one of the plurality of modules, such that the local controller in the at least another one of the plurality of modules provides the another temperature signal; and, optionally, upon loss of communication with the second node, the local controller is configured to communicate with a local controller in at least another one of the plurality of modules, such that the local controller in the at least another one of the plurality of modules operates a corresponding heating element.