I have used one of the oil-filled radiator heaters for 5 or 6 yrs. However, this yr. it started to show burn marks & peeling paint betwin the fins as well as truning a scortched borwn all over. I purchased a new one in Nov. & it started leaking & showing burn marks at the top between the fins. If your using these type heaters, do not leave them on when leaving the house or sleeping. Read the many reviews on Amazon regarding oil leaking & catching on fire.