In the UK domestic heat pumps are typically only capable of heating water, in order to be a drop-in replacement for gas boilers for central heating. These heat

In the UK domestic heat pumps are typically only capable of heating water, in order to be a drop-in replacement for gas boilers for central heating. These heat pumps are not reversible, and there's no cooling option at all, since houses don't have air ducts for AC, and retrofit is usually infeasible.