| CPC F24D 11/02 (2013.01) [F24D 11/0214 (2013.01); F24F 11/64 (2018.01); F24F 11/65 (2018.01); F24F 2120/14 (2018.01); F24F 2130/10 (2018.01)] | 12 Claims |

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1. A heating installation for premises, the installation comprising:
a controller, and coupled to the controller:
an air source heat pump configured to extract energy from surrounding air;
a premises heating arrangement; and
a local weather sensing arrangement;
wherein the controller is configured to:
receive weather forecast data from a remote source, and local weather status information from the local weather sensing arrangement;
set a control algorithm based on both the weather forecast data and the local weather status information;
control a supply of energy from the air source heat pump to the premises heating arrangement based on the set control algorithm;
determine a forecast period of lowered temperature of the air from which the air source heat pump extracts energy based on the weather forecast data;
predict a likelihood that the premises heating arrangement will be used during the forecast period of lowered temperature, wherein the controller is configured to take account of occupancy or predicted occupancy of the premises and of scheduled activity of occupants of the premises in predicting the likelihood; and
control the supply of energy based on the predicted likelihood that the premises heating arrangement will be used during the forecast period of lowered temperature and increase energy input into the premises heating arrangement before the forecast period of lowered temperature of the air from which the air source heat pump extracts energy.
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