Hello guys! Is this normal that heat mat swell/bulge part of the plastic tub?

[MissterDog]

I currently use jump start and zilla thermostat. The Herpstats by Spyder Robotics looks so nice and seems kind of different with normal thermostat. Is the usage the same? Oh I even see its store have humidity probe lol!

Herpstats overall function the same they are just better quality with more features and having dimming and pulse control options. They also look nicer :p

Zilla and Jumpstart are decent thermostats to start with on a budget but they don't have as much of a long life span. If I remember correctly they are limited to on/off controls settings which tends to create fluctuations in temperatures and are not as accurate compared to proportional thermostats like Herpstats and Vivarium Electronics.

There is a chance you may need to replace Zilla/Jumpstart within a year due to it failing or growing more inaccurate. So in a long run I'd definitely recommend getting a Herpstats which will pretty much last forever. Well, not forever but a life expectancy of at least 10 years is a far better investment long term