Low head loss hydronic floor heating

mephistopheles · 10-09-12, 02:39 PM

All those tee fittings will increase the required head significantly through friction losses. I don't have a Crane or Cameron book that includes PEX but I would use 1.38 or so for the K value of each tee fitting. You also run the risk of short-circuiting your heat transfer if for some reason there is a flow obstruction or something to absorb more heat on one side of the room than the other (such as a rug covering the middle).

10-09-12, 02:39 PM	#2
mephistopheles Lurking Renovator Join Date: Jan 2011 Location: Ohio Posts: 3 Thanks: 0 Thanked 0 Times in 0 Posts	All those tee fittings will increase the required head significantly through friction losses. I don't have a Crane or Cameron book that includes PEX but I would use 1.38 or so for the K value of each tee fitting. You also run the risk of short-circuiting your heat transfer if for some reason there is a flow obstruction or something to absorb more heat on one side of the room than the other (such as a rug covering the middle).