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Description How is this fireplace fan working without batteries or electricity... Description How is this fireplace fan working without batteries or electricity? It seems impossible but this stove fan runs without batteries cords or electricity. It works because heat is a form of energy. This stove fan is designed for usage on... more

KARMAS PRODUCT space heater uses the principle of air convection circulation. ... KARMAS PRODUCT space heater uses the principle of air convection circulation. Cold air is inhaled from the bottom quickly heated by the internal heating matrix and discharged from the top air outlet to form an indoor air circulation system and make the... more