Hot Water System

Hot Water System FAQ:


I am building a new construction home, and I have a water heater closet in the middle of the house ( IN conditioned space). And was wondering why the inspector wants me to insulate the hot water line if it is in conditioned space? Keep in mind that I do not have a circulating pump. I tried looking everywhere in the IRC 2006, IECC 2006, IPC 2006 and could not find anything. But online I ran across this:

“ALL DOMESTIC HOT WATER SYSTEM PIPING running through unconditioned space shall be insulated to a minimum of R-4. Circulating domestic hot water system piping shall be insulated to R-4 even within conditioned spaces.”

And was wondering where exactly this caption is from in the code?

Hot Water System FAQ:


including waste water system and hot water line system

Hot Water System FAQ:


the problem is there are rooms connected on a long hallway the water should circulate to all points and return to the hot water tank, but there are two rooms right next to each other one room the water gets hot the next not could there be a blockage or bad valve somewhere?