Immersion heater is a convenient and handy device for heating small amounts of water in the office, at home or while traveling. Immersion heaters are perfect for heating the amount of water you need in a mug, teapot, heat-resistant glass or other vessel directly and quickly to the desired temperature. An immersion heater is especially convenient when traveling, because with its slim design and light weight, it fits into any pocket, no matter how small. Therefore, a travel immersion heater is a perfect alternative to a kettle or other bulky and heavy water heating devices. Since the heating element of an immersion heater is located directly in the water, its operation is very efficient and energy-saving. The use of an immersion heater is associated with a very low heat loss and therefore offers an efficiency of up to 98%. All our standard immersion heaters have a built-in fuse to protect the user.