Hi, this is the first video of yours, that I saw, so if you already discussed what I'm about to suggest, feel free to ignore this comment. 1. I did some unscientific experiments with a strip of iron (~3'' x 2') painted with matt black oven pipe paint. I can't remember to temperature reading I got from my IR camera, but I think it was in the high 50°C (+122°F) behind a 3x glazed window in the winter sun in germany. Iron has a high absorption capacity for thermal radiation and combined with the high-temp-rated matt black paint it has some serious solar heating abaility. A few of those strips along the air path of your fans might increase the kilns efficiency. 2. To lower the thermal shock from the day-night cycles and smooth out that temperature curve you could place some closed barrels or jerry cans full of water inside the kiln. Water has a high thermal energy capacity, so small-ish amounts could have an effect. It's just an assumption, but this might prevent some cracking in the wood.
Hi,
this is the first video of yours, that I saw, so if you already discussed what I'm about to suggest, feel free to ignore this comment.
1. I did some unscientific experiments with a strip of iron (~3'' x 2') painted with matt black oven pipe paint. I can't remember to temperature reading I got from my IR camera, but I think it was in the high 50°C (+122°F) behind a 3x glazed window in the winter sun in germany. Iron has a high absorption capacity for thermal radiation and combined with the high-temp-rated matt black paint it has some serious solar heating abaility. A few of those strips along the air path of your fans might increase the kilns efficiency.
2. To lower the thermal shock from the day-night cycles and smooth out that temperature curve you could place some closed barrels or jerry cans full of water inside the kiln. Water has a high thermal energy capacity, so small-ish amounts could have an effect. It's just an assumption, but this might prevent some cracking in the wood.
Thanks for the info. Great!👍