I currently have a one pipe loop system in place. There are 2 heating zones and one DHW zone. The boiler is new as well as the indirect water heater. Radiators were existing.
The first floor is big old heavy rads and there is no problem there.
The second floor has all baseboard.
The second floor was modified to become a second zone and the loop
goes up to the radiators on the south side of the house which contains one bath and two bedrooms.That side of the house seems fine. The loop then returns to the basement and crosses the width of the basement where it then goes up an outside wall to the Master bedroom with approximately 14 feet of baseboard before returning to the boiler.
This bedroom never seems to get warm enough. It is on the north side of the house.
The house is 120 years old with very little insulation but that is a project I am working on.
I've begun insulating the pipes in the basement but I was wondering if it was possible to have just this radiator configured with a monoflow tee arrangement so I can have some hotter water feeding that radiator.