Quote:
	
	
		
			
				
					Originally Posted by  intarsiabox
					 
				 
				A friend of mine just did in floor heating in his new garage. He was going to use a hot water tank but found that it is a code violation. 
			
		 | 
	
	
 Well not totally true. You can't mix your domestic hot water supply with a radiant heating system, but they do make hot water tanks that can be used in radiant floor applications. Can be cheaper than the cost of a boiler based system.
CMHC radiant link