I'm currently building a gasifier and am concerned about creatose build up in the heat exhanger. I wondering if there's something that can be used to remove any build up inside. I was thinking an alkaline cleaner suck as sodium hydroxide or PBW (used for brewing but can take tar off the driveway 
) Is alkaline the way to go?
	
		
			
		
		
	
				
			
) Is alkaline the way to go?
	
	