Ashful
Minister of Fire
That's kind of how my set up works. Stove in a fireplace and heats all the stone in the fireplace I can even feel warm stones upstairs, when I let the stove go out the stones radiate heat for hours.
Same here, except increase Seasoned Oak’s 2 tons to 1 million pounds for the stone part of my house. Unfortunately, due to the greater temperature difference being on the outside face of the stone, more net energy is radiated in that direction.