This is the place to have a look how this stove works. The operational temps between 100 and 250оС and strong set up exceeding 350оС (on the top plate above heat riser). The 12 hour record include subtitles for better understanding of burning process.
What do you see on the screen? The camera points to the primary chamber double glazzed opening while the thermal probe is placed on top plate located above the heat riser. In my zero stove version the exhaust gases pass through a heat exchanger first to produce hot water and supply couple of radiators. They come out from the narrow chamber and expand in a much bigger space leading to temperature distribution and drop which is actually the intention. This way the metal parts are preserved from damage. You should read this temp data only as a reference point. I can assure those who see it as a source of danger for the kids that actually Chimneything is heated that much only on the top plate. Due to the extremly low air flow inside the stove the heated gases cool down significantly while moving to the lower parts of the stove surface before leaving to the chimney. Normally temps at the low parts are about 50-60оС excluding some spots such as glazed opening, the zone around the door and generally around the primary fire pit. Therefore a risk typical for wood stove exists in the normal frames.
The video contains subtitles for better understanding of processes being shown.
As the long recording above was going decided to make another one showing what happens in the primary chamber. At 8.00AM I shot the remaining charcoal in the camera. It wasn’t smoking at all. If I opened the door while the logs still emitted fumes and smoke the premises where stove is located would be full of smoke in seconds. Here is the clip: I’m speaking in Bulgarian what is written in this paragraph.
Коминче - място за една добра печка 