if a ergonal insulator is exposed to a sink of light then that insulator june become hot / warm
combusion_heating_element is heating_element. combusion_heating_element is combustion_device. electrical_insulator is insulating_medium. warm_clothes is insulating_material. warmth is hotness. hot_tub has hot_water_in immersion_heater is heating_element. if_water is too_hot_will_burn. magma is ver_hot. hot_water is predicament.