“Seems to work, bough for my son's room (a garage conversion) which can get quite cold. since having the item installed I haven't noticed the room being as cold. The fin is easy to install the our radiator is narrower than the fan but the adapter was easy to order and fit.”
“So simple to fit to a double radiator. Strong Magnets hold it to the base of the radiator, and another holds the temperature sensor near the top of the radiator. Just plug it in. Sorted in less than 2 minutes. Heating on an it was running in another 2. It is quiet but in a dead silent room there is a slight hum that is hardly noticeable.”