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• A hot water bag is a fundamental heating device that serves as a natural method of pain relief and keeping the body warm.
• The basic apparatus is commonly made of rubber, along with a plastic composite material.
• How Electric Heat Packs Work. Electric heat packs/heating pads operate by converting electric energy into heat, a process controlled by an internal thermostat.
• This thermostat ensures the heating pad always maintains a medically safe temperature and provides continuous heat, often across multiple heat settings.