Imagine a personal heating system that works indoors as well as outdoors, can be taken anywhere, requires little energy, and is independent of any infrastructure. It exists – and is hundreds of years old.
Sure for emergencies it is probably good to keep a hot water bottle around your house, but for day to day use an electric blanket (ideally powered by renewable power) is more comfortable and efficient.
Sure for emergencies it is probably good to keep a hot water bottle around your house, but for day to day use an electric blanket (ideally powered by renewable power) is more comfortable and efficient.