Heat transfer duct work

[Nico1986]

I’m looking to add some heat transfers duct work into my attic to move heat from my living room where stove is to bedrooms, looking for guidance. What size duct should I have in ceiling in living room to move heat would be around 30’ to furthest bedroom. Living room is about 20’x15’ bedrooms are 15’x10’. Thanks in advance

 

[begreen]

The heat loss through the ductwork may make this a zero gain system. It's better to move the cooler air from the bedroom(s) via insulated ducts to the stove room. Warmer air from the stove room will replace it.

Is the house on a slab or is there a basement? If there is a basement, that is a better place for the ductwork.

 

[brenndatomu]

If you research it, you'll find a pretty high failure rate with moving heat from the stove room to other parts of the house via ductwork.
What does work pretty well however is to put a small fan, running on low, at the furthest point away from the stove that you are trying to warm up. Leave it set on the floor, blowing cold air back toward the stove room. Cold air is much easier to move then warm air...when you push cold air back toward the stove, warm air is pushed out to replace it.