Dylan said:
Warren said:
Once they start burning and expand...If you touch them with a poker, they fall apart and the firebox becomes an inferno.
Yikes
That's not good.
If you don't poke them, they burn fine for a very long time. If you pack your stove with them, only the surface burns (with some difficulty) and I'm not sure the firebox temps are as high as needed for quite some time to achieve a smokeless burn.
Consider this. Pack your stove on top of a good bed of coals with a chunk of something almost as massive as coal (biobricks will sink in water), all at once, surrounded by a burnable surface. This is exactly what you get with them. What happens to the temp of the stove? The the bricks and the stove reach the average. So 70 degree bricks, 500 degree stove...you get instant firebox temps of something around 300 degrees. Now only the surface can burn. Takes a while for the stove interior temp to reach secondary combustion temps.
If you pack them more loosly, the problem is solves due to surface area. I think it's like anything...You have to play with it to achieve the best results.
Some observations: I do believe is that they burn very clean, almost no ash, No bugs, and you can get very long burn times out of them. They're expensive, they also don't burn very hot for a while if packed tightly, they are not any cleaner than wood since they do shed, and you burn your hands putting them in the stove in order to pack them correctly...Use gloves
Overall, a nice alternative to wood if wood is hard to come by.
An alternative perspective is that Presto logs (same technology, different shape) also work VERY well.