dave marth wrote:The batch box dimensions say the depth of firebox can be 4 to 5.5 times base. Is that still accurate or is it just 4 times base at the maximum? I could definitely go for the 5.5!
dave marth wrote:I've searched clay slip and cob mortar. There's many recipes, some with sand and perlite also. If I just dip bricks in the straight clay slip (pancake batter consistency) that would be good for being permanent? Just worried if I can pop the bricks apart after a test run, is it sting enough to hold together strong for years to come?
dave marth wrote:Just saw another problem. My dimensions call for a 10inch wide burn box in my batch box. My fire bricks are only 9". How can I still use firebricks to span the sides for the top of the box?
dave marth wrote:Just one more question before I start cutting and stacking bricks bricks... Do you think I am making a mistake using a 7 inch heat riser with a 6inch insulated 18' chimney with 1 90 degrees bend upon entering the wall. I'm hoping the bell will cool everything off enough to squeeze it into a 6 inch chimney.
dave marth wrote:I have thought of 2 reasons it was smoking. Either it's because the firebox couldn't get hot enough since it was uninsulated. Or... Maybe it was because the firebox is too deep. I thought maybe it's too deep to concentrate the heat toward the back of the firebox. Also I know my p channel should be corrected. I will try to make a better one tonight.
dave marth wrote:Also I realize there will be smoke upon starting up the fire. With smoke there is creosote. It seems like with a batch box it will create more creosote than a standard j tube because there's more mass to a batch box. Am I correct or misunderstanding?