Quote Originally Posted by Marrissa View Post
I would get a herpstat 4. It'd make me very nervous to only have a probe on one of the racks. I'd want a probe on each rack. The herpstat 4 comes with four outlets and four probes. I have one for my two T8s (they're divided in half with radiant heat panels on either side) and it works well.
It's still all on only one thermostat though...If it malfunctions it affects all 4 probes...I only put 2-3 racks per thermostat in case one goes bad it doesn't wipe out too much.