Quote Originally Posted by JodanOrNoDan View Post
Without getting into a lot of detail, with the correct thermostat you can run entire racks off a single one. The the total number depends on the total length and size of the heat tape and the rating for that thermostat in question. That said you I always ran a backup thermostat when I was not on ambient.
What sort of thermostat would that be? Does it have multiple probes or there a certain brand name that breeders with RUBs might use?