When I used wood for heat - I split the only wood I have here. Ancient, huge Ponderosa pine. Most were 32" to 36" on the butt. A REAL PITA to roll up onto a horizontal splitter.
I dug a trench with the bucket on the FEL and a much smaller horizontal side trench down at one end. Roll the splitter down into the trench and push the rear wheel on the one side into the smaller horizontal side trench.
AH - HA - - now the horizontal I-beam of the splitter is dead level with the surrounding ground AND up tight against the one side of the trench. Made an almost impossible job, at least, doable.
What, other than this, is REAL aggravation. The splitter pushes the wedge completely thru the giant chunk without anything splitting off. So, pull the chunk off - rotate 180 degrees - try again.
By the time I got down to 24", or so, in diameter - things would usually be going much better.
All the aggravation, sweat, sore back, neck, arm muscles and I still miss everything involved in burning fire wood.
Knowing that there was five well seasoned full chords of pine out in the woodshed had a very satisfying feeling as I would go into the fall season. AND off to the side, but still in the woodshed, a freshly cut, stacked five chords, waiting for fall - next year.
Ah - but that was near 40 years ago - I was a young fellow then and could withstand all the necessary effort. Now - I turn a dial on the wall, forget all those days, relish in the comfort & ease that all electric heat can provide.