Hopefully I'll be considered to one of the chats soon.
I am the inventor of the soon to be released coal feed controller for any stove using the tri-burner units ( Alaska, Reading , U.S. Stove ) and you can use my unit to control the feed rate based on a dry-closure contact of any thermostat, I have tested the system for an entire season last year, and the results were better than expected ! The device is in a " Patent Pending" status .
The nice part about it : ( Under 200 Dollars complete with a programmable Energy Star thermostat, and it's designed to be easily retrofitted )
I am in the process of developing other units, for the Harman, and the Keystokers mechanisms.
Wish me luck !
For any additional information or any inquiry, feel free to contact me at:email@example.com
and place the word coal in the subject line.