Hi Gary, thanks for responding to my post.
1: The entire core is made from hard fire brick recycled from an incinerator. 4.5" by 9" I have noticed it takes 30 minutes for the fire brick to get warm on the out side. I will measure
the temp on my next burn. I have also noticed that the burns are getting more rocketty with each burn. Maybe the result of the core drying out.
2: I did wonder if some of the smell is coming from the Rockwool. I know lots of products off gas and it does have some small odor when being installed in a house. According to their
website it is good to temps of 1000 c and I didn't think the outside of the core would ever get that hot. Inside yes hopefully.
3: I have been burning Black walnut. Several years old and seasoned in a completely dry wood shed. I did notice that my last burn where I used split wood instead of 2-3" diameter
sticks burned hotter and faster. I have read that tree bark is fire resistant compared to the interior wood. No painted, preserved or wet wood.
4: I am using a primary air opening of 2" by 4". Slightly bigger than the recommended 2 6/16 by 2 6/16, but it seems to run better that way. I haven't made a door yet so I am
blocking the rest of the opening with bricks. I have noticed that chemically smell when using my vertical coal/wood stove in the past. Getting rid of that smell is part of my interest in
5: I made the P channel 2 1/4 wide by 5/8 high. I always run with both wide open.
6: I am building it in a garage with a 6" stove pipe collecting the exhaust and running it into the chimney. The chimney is only 8' high and made of brick so long term I intend to build it
higher and line it with more 6" stove pipe then insulate it with a clay perlite mixture to maintain exit temperature. Since the heat riser is the "engine" of a rocket I'm not sure that's
necessary but it can only help right? I am still in the process of building the bell.
1: I need to a better way to measure temperatures and exhaust quality. Any recommendations? Where in the rocket are you measuring temp for the 1200-1800 F goals? Interior fire
2: Advice on raising the temperature in the rocket for complete combustion?
Thanks again for your time and help, Lesleigh