Love them. I have had the herpstat 2 redline for a while now, and I got a Herpstat 4 in the mail yesterday for my shiny new stack of T10s (setup pics coming soon!).

It was a bit confusing in the beginning, but honestly once I read the manual once or twice it has become a breeze to use for me. I would absolutely recommend them as the best thermostat you could buy. The safety features are unparalelled by anything else in this space.

Side note, during setup last night, I realized that as-is I would never be able to fit 4 of the silly sideways pro-products RHP plugs into the Herpstat without blockage and overlap. So I picked up these triple plug extender things for 2 bucks at home depot. Solved the problem.

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