My father, always the romantic, bought my mother a new log splitter for their anniversary from Northern Tool. It's a 20T vertical/horizontal.
They used to heat exclusively with wood but are at the age now (mid-60's) that it's more supplemental. He used to offset the cost of their big boat fuel (about 5000 gals./yr.) every winter but they are downsizing to make things easier and that's all part of the trickle-down. For non-commercial, it's getting used comparatively less so no need to go real crazy and buy the biggest and fastest (unless that's your M.O.
). Depending on your log size, a 20T dual split (splits in both directions) should be sufficiently powerful and speed up the splitting process.