Picture posting is enabled for all :)
Thermostatic?
Check TG's guide - http://tinyurl.com/yv9u3hYou will see that most things germinate at room temperature, or less - & some, like Lettuce, do not like it too warm.
Each morning I take off the tops and either let the lids dry or wipe the moisture off with a towel. I leave my lids off all day then and just have the bottom heat on.