I live in an ancient home in a honestly cold harsh conditions. Most of the time, my life isn’t affected by those living conditions. The only idea would be my laundry habits. I live about 20 minutes from the city, plus I don’t have a washer or drier at home, at all, I make the trip into city to do my wash, but most of the time I just wash our clothes by hand at home. I use oil gas furnaces to warm up our house, plus they regularly do the work honestly well. On top of heating our house, I use the oil gas furnaces to dry out the clothes inside when it is below freezing outside. One morning, I had just finished getting all our laundry over our heater, when it swiftly began pushing out black smoke. Upset, I unplugged the furnace plus called the HVAC business to diagnose the issue. She told myself and others that by putting our clothes over our oil heater, I was introducing a lot of water into the air around our oil heater. The moisture had ruined our heater’s thermal fuse, which is what works when the furnace turns off. With the thermal fuse ruined, our furnace hot plus started to fire up on oil inside. The burnt oil lead to all the black smoke in our house. The HVAC professional also told me I was lucky to catch the smoke when I was there. So, a disfigured thermal fuse can cause fires in oil heaters.