New ask Hacker News story: Ask HN: Is there a good reason why I can't set my oven below 200F?

Ask HN: Is there a good reason why I can't set my oven below 200F?
2 by johnnyApplePRNG | 9 comments on Hacker News.
Or almost every oven commercially available, for that matter? I am trying to keep the oven warm to rise some bread and I'm wondering if it's a pointlessly frustrating process or if there is any reason for this?