Controls for Supplemental/Mixed Heat Sources + Joined Spaces; Multiple Rads on Single Manifold Port

rossn

Would appreciate some guidance for these situations for a mid-temp system:

1. Simplifying Controls: Looking for ideas to simplify controls for a master suite has bath and bedroom joined (open-air), and multiple heat sources. Details are longer, so see below, with diagram.
2. Supplemental Heat Controls Approach: For areas with hydronic or electric floor where supplemental heat is needed, do you just put a TRV on the supplemental heat (panel rad) and call it good or is there a better approach? For baths, when when calculating heat generated by electric floor, do you count area under shower/tub or vanities that are floating or open underneath?
3. Plumbing: What’s the preferred way to plumb two panel radiators (one room) on a single manifold port (< 6000BTUs)? Options I’m aware of: H-valves (if rad supports), reverse return piping with monoflow tees, and simply teeing off the manifold. I would use a thermostatic valve inline with remote operator.

Appreciate your help.

*** Additional info for Master Suite ***

What’s a good more-consolidated control plan, using thermostatic valves and existing manifolds?

• 6 heat hydronic emitters: 3 panel radiators, 1 towel warmer, 1 HO baseboard in the closet, and heated floor in the bathroom (trackplate underneath subfloor)
• Currently, everything below is on TRVs, except the floor that has an inline thermostatic valve, but has been running wild.
• We don’t like having to adjust so many TRVs when turning a room down/up, and wife tends to adjust just the panel near the bed.
• 5 heaters on one 5-port manifold, closet on a separate shared manifold (though closet and floor could be swapped)
• Hydronic floor (track plates) converts to electric floor when re-tiling in 5 years
• Possible remote operator positions shown: A-E. Thanks for the ideas.