For heating up my RO/DI, I bought a reptile heater cord (11W) off Ebay and I plan to figure some way to use it on or near the input cold water line.  Haven't figured it out yet but will sometime soon. 
		
	
		
		
		
		
			
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				Mark...
  
290g Peninsula Display, 425g total volume.  Setup Jan 2013.
			  
		
		
		
		
	
		
		
	
	
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