A:Answer Hi there, this is Tia from Dyson. You'll be happy to know the Dyson Hot + Cool™ fan heater is energy efficient because it heats the room quickly and evenly and it uses an intelligent thermostat to control the temperature, switching heat on and off automatically.
The actual energy usage over time, and therefore the cost, is specific to the exact environment in which the heater is being used, so it is impossible to calculate a ‘running cost’ without knowing room dimensions, start temperature, building materials, window and door number and size etc. as well as specific energy prices which also vary widely.
Thanks for your support of Dyson technology!
Best wishes,
Tia
Dyson Customer Support