UGH.
Finally cold enough this weekend to burn. Fired it up Fri morning, burned ok thought the day and at 9pm loaded up for an overnight. Did not pack it stuffed, just full with a mix of hard oak and some lighter stuff.
Outside temps where mild - maybe 28-30 overnight.
Of course it went nuclear. Got up to 1650 by 10pm so I opened the bypass to cool it off all the way down to 1000. Then reset and went to bed and in 45 minutes it ran back up to 1750 around 11:15pm. At this point the load was over half burned down so I figured it has to peak soon, knocked it down, left it on bypass for 10 min to cool off again and then shut it down and turned off the alarm to sleep.
It may have gone nuclear again overnight but no signs of damage this morning. Lord only knows how many times it went nuclear before I had an alarm.
I'm done. I'm just not going to pack it full for overnights anymore, period. I simply cant trust it and Ive tried EVERYTHING. rebuilds, gaskets all pass the dollar test, did reckless mod to close the secondary. nothing works.
From now on I'm going to use it more for backup heat and only put a few splits in overnight to carry some coals for hte morning. let hte gas heat do hte heavy lifting. Its just not worth the headache