Oh Sonny, you know me, I ALWAYS avoid conflict
.
I spoke of soft maple. There is a hard maple and yes it is considered hardwood, and I also believe not too far down the BTU chart for fire wood species from oak.
I spoke of my experience of the "soft" maple. Its burns, burns good, but does burn faster than the hard maples, and even more so than oak.
Now, if your a good feller, I'll send ya a couple splits of white oak for x-mas, and then you'll see what a long burn is really like
Heres Tom's chart from his site , Thanks Tom.
Notice the silver maple not far from white oak and same as red oak ( I even have a hard time swallowing that one), yet the red maple is nearly but a lil more than 1/2 the BTU's as white oak.
I just love white oak, its hard, dense coals great, burns long, and I love the smell of fresh split oak, yummy.
(broken link removed to http://chimneysweeponline.com/howood.htm)