I am a newbie but I am also a BioBrick believer. First year burner with a Regency I2400 insert. I bought 3 cords of "seasoned" wood. I also bought 3 tons of BioBricks figuring between the two I'll be all set for the season. I would run the air wide open with the wood and struggle to keep temperatures up. Symptom of not so seasoned wood.
I found that with BioBricks, ya want more heat, you give it more air. I usually burn 3 or 4 bricks from a cold start to get coals going. I push them to the back of the stove and then lay 2 layers deep and 2 high by 3 wide (2 east/west, 1 north/south, second row the opposite). So that's 10 bricks, plus whatever to start with. The key is to keep the space between the bricks tight so they burn slower, from the outside, instead of all sides all at once. I could stack 3 deep by 3 wide by 3 tall for longer run times (approx. 16 bricks) plus starter bricks and then watch that air. If you leave the air turned up, the stove will overheat. When I was experimenting I slowed the heat down by cutting more air and hitting the "high" fan switch. Overnight is great and in the AM you have brick size coals glowing red, many keeping their shape. You can turn down the air about ¾-7/8ths in my Regency to get and keep a good secondary burn once the flameage is cranking (doesn’t take long).
So, I am not worried about number of bricks (more = equals more run time), you just have to perfect the air flow from your stove to maintain the temperature you are after.
I think I am going to let my not so seasoned wood pile season until next season (by the seashore?). I bought 2 more tons of BioBricks for a 5 ton total as I am now a believer. I am also addicted to wood and wish my cords were good, but they are not, so I will not struggle with wet wood this winter.
My BioBricks guy said they have plenty of demand and have trouble with supply. But they believe they will be out by Thanksgiving. I'm not a gambler so I'll sleep easier with them tucked away. Pellets already have a supply problem... There may be a better supply of BioBricks right now because at least the wood burning crowd have options.
That's my take on it, from a newbie who is still expanding my wood burning horizons. (The addiction has begun!)
Official instructions on loading/burning BioBricks:
http://www.biopellet.net/instructions.html
Good luck and enjoy keeping toasty!