The Radiator Booster 2 is an upgraded version of the original innovative idea. But we'll get to the improvements in just a moment. First of all, an explanation.
The Radiator Booster works by directing the wasted heat from the back of the radiator into the room. To do this it uses a small, low power fan to "suck" up the heat from behind the radiator and circulate it evenly around the room. It is so effective that in most cases cold spots are eliminated, and rooms take 50% less time to heat up.
As if that wasn't enough, the designers have added an automated thermostat feature, meaning that you don't have to remember to turn it off or on. When the heating is turned on and your radiator reaches approximately 32 degrees the Radiator Booster will turn itself on. It turns off when the radiator becomes cooler that temperature. The upgraded version features a larger, quieter, cheaper-to-run fan; it can also be adjusted to fit radiators of varying sizes.
Okay, now for some stats: the radiator booster costs approximately 30 pence each year to run; it can save the average household between £70 to £140 per year in heating bills. This represents around a 50% improvement in efficiency. Retailing at under £20 from the Natural Collection  or the Ethical Superstore , it will have more than paid for itself by Christmas.