As the UK experiences hotter summers and more frequent heatwaves, households are increasingly looking for ways to keep their homes cool, driving a surge in demand for air conditioning. The article outlines the three main types of home air conditioning systems: portable units, split systems, and ducted systems. Portable units are standalone and can be plugged into a socket, while split systems involve an indoor and outdoor unit fixed to a wall. Ducted systems are designed to cool the entire home but require invasive renovation work. Costs vary significantly depending on the system. Portable units range from £350 to £650 on average, though some retailers have sold them for as low as £149. Wall-mounted split systems cost between £750 and £1,100 per unit, with full installation typically ranging from £2,000 to £3,500. Ducted systems are the most expensive, with installation costs estimated between £5,000 and £10,000. Running costs also vary, with a typical portable air conditioner adding roughly 25p to 40p per hour to an electricity bill.