Buying a condominium with electric underfloor heating

I now have the energy certificate. Unfortunately, I don’t understand a thing ^^. Where can I find out what it all means? G

This is not a normal heater. It works well as long as you can get wood easily and cheaply. Furthermore, you have to take care of the chimney, i.e., keep adding wood again and again. This no longer has anything to do with the romantic flair of a fireplace stove, which you install purely for luxury, but is associated with work. The other problem with such a heater is that it can practically only be regulated by the amount of wood you supply. It is not a comfort heater. But for that, you can turn on the electric underfloor heating, although this will probably become quite expensive to maintain if you use it constantly.

The energy certificate would really interest me in this case. Is it a consumption or a demand certificate? What is stated as the primary energy demand?
If it is the former, then at least the hot water will not be included, possibly even the heating itself.

So the final energy demand is 141 kWh and the primary energy demand "overall energy efficiency" is 365 kWh

Energy demand:
Energy source: Heating Hot water
Night-time electricity: 125.9
Electricity: 14.6

These are roughly the values I have read out.

Where can I see whether it is a consumption or a demand certificate?

what would be approximate costs for wood for 5 cubic meters of wood per year?

1 cubic meter of wood costs depending on the region and dealer approximately 50 to 100€.

Thank you for the answer. What do you say about the values of the [Energieausweis]?