Well coming from a land where they're pretty much all we've got (except where people plant non-indigenous types for decorative purposes) i can say they burn very well !!
Dried out burns best, the green sort doesn't do so well .....btw pine has too much resin for clen burning.
Depends what sort of Eucalyptus. Many types are excellent for a stove.
As for splitting them, put your back into it.
We burn, ironbark, yellow box, white box and speckled gum during the winter, perfect.
Hi Seekeerz I'm well thanks, hope you are too, lovely morning here. Alas I need to duck out, buy car parts and then have fun pretending to be a mechanic.
They do smell divine when burning.
Cya
Take care.