The Yukon Husky has 2 rows of firebricks on the outside and back walls of the wood box. But on the inside wall of the firebox there is only a single row of firebrick. The manual says not to load above the firebricks. Does this mean you can only load to the top of the single row of firebricks on the inside wall? If this is the case, then why have the double row of firebricks on the other two sides?
Thanks,
Jeff

