These are independent reviews of the products mentioned, but TIME receives a commission when purchases are made through affiliate links at no additional cost to the purchaser.

Fireplaces create pollution and are difficult to maintain. Electric heaters can be bulky and energy-sucking. South Korea’s Graphene Square is using graphene, an ultra-thin, highly thermally conductive material made of carbon atoms, to provide an alternative. The Graphene Radiator is a virtual fireplace (featuring computer-generated holographic flames) that folds flat and can heat up to 167° F using just 200 watts of power—30% more efficient than electric coil heaters. With backing from Samsung, Graphene Square plans to produce 40,000 devices annually starting next year.

More Must-Reads from TIME

Contact us at

Hydration Made Fun
A Modern Flip Phone
A Saliva Pregnancy Test
More Than a Fast Car
A Breakthrough Bassinet