Personally I would use a big one. A 60 maybe. It would burn the top fast but you would need a big wick to properly burn the middle---depending on the diameter of the sphere of course--and I only do pie not math! Merry Christmas.
A forum community dedicated to beekeeping, bee owners and enthusiasts. Come join the discussion about breeding, honey production, health, behavior, hives, housing, adopting, care, classifieds, and more!