Finally stopped being lazy and wired the STC 1000. Impetus for completing the controller was another wort chilled way to low for the yeasts fermentation tempereature. Had to add warm water to the "swamp cooler" to warm it up.
Tested the controller this morning with a aquarium heater that is preset to 75°F. Plugged it in and no sparks. Set the parameters for the test. Set temperature agreed with two digital thermometers. I'm happy.
Added a toggle switch to reinstall the jumper on the hot side of the outlet. This will be for running two heaters at the same time and at the same temperature when necessary. Power to the cooling relay was disconnected to avoid burning it out.