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.
Exactly. Solutions that rely on a single means of producing energy (i.e. microwavable bag, electric heat blanket) have a huge disadvantage compared to hot water bottles because hot water bottles can be “powered” through all kinds of water heating methods. Stove top, induction plate, water boiler, fire, etc.
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depends on your main power source i guess
Exactly. Solutions that rely on a single means of producing energy (i.e. microwavable bag, electric heat blanket) have a huge disadvantage compared to hot water bottles because hot water bottles can be “powered” through all kinds of water heating methods. Stove top, induction plate, water boiler, fire, etc.