Herpstat 2 Question

[The Serpent Merchant]

The racks do not need to be run independantly. There are 2 temp sensors on the Herpstat 2 and that is what it is meant to be used for. Plug the racks directly into the Herpstat 2 and then plug the Herpstat 2 into a nice surge protector. Ensure you are monitoring the proper sensor on the proper output control of the Herpstat 2.

I'd get a Herpstat 1 for the incubator.

That is what independently means... 1 rack per thermostat/thermostat channel.

The OP is asking if they can run 3 different heat sources on 2 thermostat channels. And the answer is no you cannot do that safely.