Dangers of overheating

Hi, I'm new to leopard gecko keeping. I have a 20 long and I'm currently running a reptitherm Uth rated for 10-20 gallons without a thermostat; my digital thermometer, laying on top of the Uth, reads between 90-95 degrees, but sometimes 100 degrees F. My room temp is generally around 60 degrees F. I've had my geckos for about a month now and they're doing well; they're eating, pooping, shedding, exploring, etc.. Everything seems to be normal. Should I be worried about running my uth without a thermostat? Thanks for any advice you can give me.


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Yes stable temps are much better and a tstat protects the animal from burns and your house from burning down...all uth and heat tape mist be ran on a tstat.

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As long as they can escape the heat and get to cooler temps when needed 90-95 shouldn't be an issue. Babies especially seem to like warmer temps in the low 90s. If they're older I might snag a $10 dimmer from amazon and try to keep it 85-90 to play it safe as long term overheating can cause issues. Also, make sure they have a nice moist hide that's not right on the hot side. Good luck with them!