Dries a full load indoors for pennies instead of running the tumble dryer. Zip-on cover traps the heat and cuts drying time roughly in half.

Key specs • Capacity: 15kg of wet washing, 20 bars • Power: 300W, roughly 6p an hour to run • Cover: zip-on, cuts drying time by about half • Folds: flat to 5cm for storage • Safety: overheat cut-off, cool to touch

In the box Airer, zip-on cover, UK power lead

UK notes This is a very British product and it earns its place: drying a load costs pennies against a tumble dryer, and it works in a flat with no outside space. Peak season October to March.