Leaving my amplifier on ok?

I left my Naim 42/110 combo on for forty years: no problem.

@pindac 

I have never heard of an insurance company not paying because of the reasons you state, do you have some examples?

Further, I’ve never heard of an audio component bursting into flames and causing a fire.  But whatever. 

Since the argument against leaving your SS amps on 24/7 is the damage caused by heat (mostly), what is the temp of your equipment both when in use and when idling?  At Idle, my Hegel H30 measures +/- 90F on the warmest part of the case and 100F is the warmest temp I can shoot inside the case.  When in operation, both go up about 10 degrees F.  It would seem my equipment would suffer more heat damage sitting in Pheonix completed turned off.  

The other concern is electrical storms, odd power fluctuations, etc., and not being there to shut down until the situation is over.  Still, when I ran solid state I did leave the electronics on all of the time to avoid warmup issues (I still leave my server on all of the time for this reason).