Does your house get its heat through radiators, rather than a ventilation system? If so, you’re probably used to your rooms being much warmer in the areas near a radiator, and cooler elsewhere. This is because while the radiator produces heat, it doesn’t do a good job of circulating that heat to other parts of the room. A nice ceiling fan can help spread it out, but it’s not necessary to run it while the radiator is off, as it’s just wasting electricity. What you might consider is getting one of these Radiator Boosters.

This gadget sits atop your radiator, and waits for it to kick on. Once it detects that the temperature has exceeded 30 degrees, it turns on and begins circulating the air in the room. This gets heat over to that corner that’s always freezing. However, once the radiator shuts off, and the temperature drops back down, the device will shut off, saving you energy. The company claims that the device will pay you back the $39 price in just 8 weeks.