Looking for some advice on removing right and left inserts on inside of 1980's Vermont Castings resolute II to get better access to vqcumn out after 40 years -I have removed both bolts on the right and left insert and looking for guidance on what tool or techinique to use to remove mainly the right insert on the inside of the resolute so I can vacuum out the ash behind the right insert and get the vqcumn hose behind the fireback -I have removed the bolt and used a flat pry bar on the right insert and it moves but will not come out-thanx