Big logs that can burn as they are in a fireplace should not be split at all. It’s an unnecessary tircha. (ShA 2 – MB 8)
Cutting wood into chips is ossur because of the melacha of Tochayn. (MB 8)
If you crack off the shells of nuts on Yom Tov, the shells are muktza of nolad and may not be used to fuel a fire. (ShA 7)
You are allowed to fuel a fire with food on Yom Tov. (MB 31)
It is best to prepare wicks for Yom Tov Shayni from before Yom Tov. If you did not, you can reuse last night’s wicks. Since there is an opinion that does not allow reusing the improved charred wicks – turn the wicks upside down and light their uncharred side. (MB 34)
