My mom with dementia continually hangs clothes on a chair in her room, turning on the heater to high. Most are not damp. Ideas?

My sister noted that her cami was a little damp but that some items, such as sheets may just have felt colder. When she was told the clothes were dry, Mother said they were not. In a phone conversation, she also told me that she had an iron and ironing board; she would then iron the clothes. It seems as if, in her mind, she is going back to a former time. I would like to try to curtail this activity as my dad is also in the room and it keeps everything in a mess. She is so certain the clothes are damp. I need help on refocusing her. She does not have a diagnosis of Alzheimer's, we think is is not Alzheimer's.