Excellent job! It is nice to have everything all in one enclosure, a lot neater than what I have. Nice build description. It does look like a tight fit, ever notice that there is always less room than you thought.
It is great that you were able to get the
PID's read higher than 400
. Can thy read in
rather than
?
I use the waterjet at work to cut out panels, makes things really easy. You might try a dremel tool with a cut off wheel or a hand held nibbler, a bit gentler than a saw.
Here is some info on magnets:
http://www.mcmaster.com/#rare-earth-magnets/=lpai4z
some rear earth magnets are only good to 300
. Alnico magnets are good to 975
.
The one I used is Master Magnetics #07270 , The TC is from
http://www.ppe.com/
#WTCK-160. Works well.
Now some ideas for the upgrades:
Latching relay
Have the stove top PID turn on the blower on high temp alarm.
Have the flue temp PID automatically close the air control.