I'm setting up the plumbing for my new boiler- it's a Viessmann 100W-26 mod/con unit, connecting to my radiant floor.
Some specs:
floor- 2000 sq', 1/2" pex tubing 2100', spaced 12" in the grid
manifolds- simple copper 1" , with 9 branches
circulator pump- Grundfos UPS 26 3 speed
I've done...