i have recently built a new house and put in an Opel 2.  I have just started burning and have mixed results.  I am burning hickory that I got from a local handle factory.  The wood is all kiln dried chunks about the size of a hammer handle.  I am trying to be cautious about over loading the firebox.  The fireplace works great but I can only get about 2hrs of burn time in about 8 hammer handle size chunks.  They are about 16" long and 2" square.  I am pretty well sure I could add more but I really don't want to overfire.  There are no temp gauges in the fireplace for me to look at so I am just staring at the flue pipe on top of the fireplace and looking for it to glow (which it hasn't).  Am I being too cautious?  I have read about people loading these full to the top with seasoned wood, but I really don't want a runaway.  Any advice?  Thanks
	
		
			
		
		
	
				
			 
	 
	 
 
		 
 
		