Re: UPS in a wooden cupboard
20C? Do you mean that or 20C above ambient?
I would think a 40C or 50C stat would make more sense- it would cut the fan in at a sensible temperature UPS wise. (Most electronics is perfectly happy at 50C, though lead acid batteries don't like it- their expected life halves for every 10C above 20C!).
__________________
....__________
....|____||__|__\_____
.=.| _---\__|__|_---_|.
.........O..Chris....O
|