D dickhop New Member Messages 5 Reaction score 0 Points 0 Nov 5, 2007 #1 just installed a robertshaw thermostat. working good, but not sure what to set the differential at and what they mean. the first stage is set at 1 and the second stage is set at 4. is this the temp. different for when the heat comes on.
just installed a robertshaw thermostat. working good, but not sure what to set the differential at and what they mean. the first stage is set at 1 and the second stage is set at 4. is this the temp. different for when the heat comes on.
