if you dont feel like talking about it I understand, but what exactly happened to your setup? You said it stopped working or shut off I think...I cant exactly remember. Do you live in a hot area that the room would go to such a high temp (120f) if the thermostat shut off? Or did the thermostat stop working or malfunction and this caused the heater element to peg out on full blast?
Some reasons to discuss this sad event:
1) I am sure you have alot of thoughts in retrospect on how you will do things differently moving forward, and alot of people can benefit by your observations and from hearing your corrective action plan.
2) If you had a controller or thermostat go bad, it could be a brand that many people on here use and a fatal malfunction of the device, or even if it was because of user error, this information could help others avoid the terrible thing that happened to you...
2) Aot of people may have suggestions on how you can improve things so this doesnt happen to you again. I am sure you are working on this, but maybe someone has an idea you are not thinking of. We all know thermostats are alot of cash, maybe by discussing things you can come up with a plan that will save you some bucks and may even work better?
I have alot of experience with electronics and heating elements, wiring, digital and analog controllers, etc.. and I will be moore than happy to help out if I can.