globati, you said ‘a load’ as in delivered? was it dry? the eternal question. Wood is all the same really, its cellulose, lignin and water. the amount of water in the green tree varies and the cell structure and lignin content can affect how fast it dries, but once dry the only variation then really is cellulose to lignin content slightly. A more resiny wood (more lignin) will actually burn a bit hotter, so long as its given the air and there’s nothing there that should make tar, any more than any other wood that isn’t burnt hot. Some wood types are hard to dry though, oak because of its cell structure takes ages, birch and some other have such a resinous waterproof bark they can trap the water in and rot, but once this is overcome and the wood is properly dry, it should burn like any other. that said….AFAIK I’ve never had Larch so I don’t know what its like to dry…or burn.
I’m very much enjoying some silver birch currently, mixed with oak.