Sounds to me that yes that is what you read.

However I read that for him and his supply of cheap coal where he lives that burning combinations of coal and wood works for him. I have lots of hardwood available to me however because a few of my big poplars on my lawn blew down in a wind storm last summer I have been burning the poplar just to at least get some valve out of it. So if I did keep track I'm likely burning twice as many cords as I should be so my numbers would look insane for wood use. My neighbour (he has a homebuilt owb) came over the other day and seen that I was burning poplar,told me I was crazy he just had 40 acres of bush logged and told me to push the poplar in a pile and come over to his place and get all I want. I'm a cheap bastage and hate to waste anything so I'll burn up the poplar 1st. There is only a few owbs around here and everyone who stops in says I must be burning tons of wood in it.
You and I both know there are lots of people who should not even consider an owb.
Top 10 reasons why you should not own an wood OWB, if you answer yes to 4 or more of these stop thinking about it.
1. You live on 1/2 acre and you neighbour is 75' away.
2. You have a 1100 square foot house and no shop.
3. You have natural gas to your house.
4. You work away from home for days at a time and your wife is a princess.
5. You spend 6 months a year in Florida.
6. You haven't driven or ridden in a pick up truck in the last 2 weeks.
7. You faint at the sight of blood.
8. Something breaks in your home and your wife makes you call a plumber, electrician, heating tech or fire dept before you tackle fixing.
9. You wear a suit to work and it doesn't have your name stitched on the front pocket.
10. You have a sweet deal to buy coal for $110 a ton.