I would love some help. Last winter I moved to a new condo. The lever to open/close the damper was stuck and I was told to spray some WD40. I did and problem got solved. But I might have sprayed a bit too much as since then every time I put a fire on it smells toxic after like 20 mins. Issue is: I put on some 20 fires and the smell is still there! Does it ever burn off or did I ruin my prefab fireplace permanently? I tried sime grease remover but nothing happenef. Would appreciate so much some help.