Basement will have an Alaska Channing III 85k btu vented out a chimney. (A) It will heat sections (A) and (B). Sections (C),(D) and (E) are always closed.
1st floor (F) has a floor register which is 8x12". (G) is kitchen and is open. (H) is bathroom and is open and also has another floor register same size as the other. (I) is Office, can be open or closed. (J),(K) are bedrooms and would be closed at night and open during the day.
My thoughts are, the heat will go up the register that is above the stove. I also believe it will go up the stairway. I am not sure if the 2nd register outside the bathroom will act as a cold air return or will be bringing up heat. The stairs will probably also return cold air. I was thinking of putting in "passthrough registers" above the room doors at (H,J,K) to allow heat in, and putting in floor registers in (K,J) to bring cold air down to the floor of the basement. Any thoughts would be appreciated.

Thanks
Chris
