Fire at my old house

I was at my old house and there was a large fire pit in the back yard.  The pit was about 20 by 20 yards and about 4 feet deep.  It was full of scrap lumber and parts for a wall that had been pulled out of the house.  Nobody was around and the wood was smoldering.  I decided to put the fire out since it could have easily spread to the house.  I moved some of the wood around and the flames shot up.  I had a hose and sprayed it into the fire.  I could see right in to the hottest part of the fire and aimed the hose there.  The fire went out but came right back twice as big.   The people who own the house now come home and started complaining about me putting the fire out.  I showed them the piece of wood that was leaning against the house.  If I had not put the fire out it would have crawled right up the wood and set fire to the house.  Just then the wall that was in the fire flipped over and fell against a wooden deck that was attached to the house.  The fire was very hot and no matter how much water I sprayed on it it kept burning.