Hi guys i put my exaust blower fan back on my enviro ef3 pellet stove after i cleaned it.I had the side off again tonight and put my hand by the side of the fan towards the back of the stove and i can feel warm air blowing from a spot around where i pu the fan back in.It has 6 sheet metal screws holding it in place.Ok is this normal for air to be blowing from there? Do i have the blower in wrong? it mounted back in those holes???