Take it from someone that DID have a fire in her house (me), the smoke is the enemy for you right now! If your furnace could have run during that time, they need to PAY to have someone clean out your ducts and furnace. I ended up taking the cupboard doors off to paint and discovered there was soot behind the hinges. I had a grandfather clock -- found out they had to take that in and have the insides cleaned out -- soot is acidic! Oh -- the smoke smell. If they don't put fans in to get it out of your house, then put bowls of white vinegar in your rooms...keep it fresh --- for about a month. When I sold my house, no one could tell I'd had a fire!!!