Since the games don t have elemental damage mechanics the fire effect instead increases damage power slightly has a chance to stun enemies on impact and leaves behind an orange particle effect with each hit. But if you mean the door next to the witch who gives you a key then it s like s4nji said above. It grants fire damage to melee and ranged attacks as well as active item attacks ex. 
				
			
										moen 8714 wall mount
											marbles that look like eyes
											mobile bars for events in ct
											mobile home 7 range hood roof vent
											motion sensor outdoor wall light
											mariner s compass wall hanging
											marine carpet 8 wide
											modern wall lights for lounge