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I built a new home two years ago and installed a lot of O2 pex pipe. I have a total of nine zones in both concrete and staple up plates. I'm using a 199 BTU instant water tank to run it. All my concrete areas run fine and retain heat fine. The areas that I'm having issues is the areas that have the staple up plates. I have two runs in each bay with all run kept as close to 300' as possible. These areas consist of a (4) port, (3) port, and a (8) port manifold. right now, these areas have a mixture of both carpet, tile, and lots of hardwood flooring. I was told to use the staple up metal faced bubble wrap as the insulation since the basement below was climate controlled.
The problem that I'm having is that these areas don't feel warm to the touch and see to run quite a bit to maintain. Leads me back to what i believe is the issue. The installer that did the final connections used a 1" copper line to connect all the taco pumps together (supply and return). There is a 3/4" copper line coming off the boiler.
I had another company look and they said that I don't have enough flow and need to remove all the supply / return lines and reinstall 2" copper in its place along with installing a buster pump.
The two items that I have in question are - Do I need R19 insulation with metal facing install in the floor
trusses or is the bubble wrap fine. No i not have enough flow.
Any help would be appreciated. Thanks.
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