In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
Losing my head over head loss....
I'm in the process of calculating head loss for a radiant floor in my house. Why is it that everywhere I look I get a different result for head loss? It is frustrating the $**** out of me. I checked uponor's manual like 15 times. They gave me a high head. I thought it might be a mistake in their manual so I went online and found a different copy of their manual which listed different numbers which resulted in different answers. I used the pex manual, system syzer, Dan's books, my own pencil and paper calculations...All different. I'm in the radiant twilight zone. I'm using Everhot radiant barrier 1/2" which has the same i.d as uponor hePex. My longest run is 211' . The active loop is 147ft. I need 6k BTU for 190sf. I want to supply 35btu at 140-150 per sf. For 1.7gpm with 10^T Uponor gives me 58ft head loss while Everhot gives me 3.5psi which I calculate to be about 8ft head loss. Can someone help?