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Other than an open flame, not really. You COULD do it with solar, but you'll spend a FORTUNE to do it, and it would be cheaper to simply run grid power to the coop
	
		
			
		
		
	
				
			Other than an open flame, not really. You COULD do it with solar, but you'll spend a FORTUNE to do it, and it would be cheaper to simply run grid power to the coop
	