Fishing Camp Heater.

2 set ups in a fishing camp
- barrels are identical
- heat source and flame out put is identical
- 8" stove pipe and outside roof vent identical
- double barrel has 4' of 8" dia. stove pipe to the ceiling
- single barrel has 7' of 8" dia. stove pipe to the ceiling ( not shown to scale in pix)
Question was posed here at the shop.
I said the double barrel set up will be warmer in the enclosed camp as there is MORE metal surface to heat up and radiate heat in the room.
Comments, please.