In the process of renovating and installing hydronic heat in my basement, which didn't have any heat prior.
For all of the other rooms (bedroom, laundry, bathroom) a single radiator or baseboard should be sufficient per load calcs, but in the family room (pictured) I think I would want a radiator/baseboard underneath each window.
The bare walls shown, I plan on framing out with 2x4 walls, with some foam insulation against the block. Question is, what is the best to plumb to the radiators/baseboard with PEX? Along the wall (Red) or coming down from the ceiling (blue)?
Required BTU at DD is about 13,000 BTU and I'd prefer to size at 140*F to ensure condensing on my new Evergreen 70. Load for the remaining rooms are about 12k BTU.