I got two quotes for a new liner for my woodburning insert, 25', 8" diameter, flexible ss, complete and insulated. One was $979.99, the other was a little over $1800.00.  Before I start questioning them on the materials, etc., does anyone have suggestions as to what I should ask? Is there any reason there could be such a difference in cost like maybe, the gauge of the steel? Thank you.
	
		
			
		
		
	
				
			 
	 
	 
 
		 
 
		 
 
		 
 
		 
 
		