Not many can help you with the links you posted. A wiring diagram for both components will be needed.
Did you press the temperature adjustment buttons on the front of the T-stat? (Instructions Step 3)Here's the wiring for the thermostat:
http://pdf.lowes.com/operatingguides/085267264501_oper.pdf
The heater, is simply a 3 prong plug, that I want to plug into an outlet.
Yes, tried both buttons, and nothing displays. And outlet/heater is on all the time.Did you press the temperature adjustment buttons on the front of the T-stat? (Instructions Step 3)
It is a quartz heater. Here's a better link to it:What kind of heater is this? This thermostat needs a resistive load to work.
It's a simple 2-wire hookup, just like a light switch. The circuit is completed via the resistive load in the heater.If your thermostat is like this one: http://pdf.lowes.com/operatingguides/085267264501_oper.pdf
It sounds like you are hooking up the black (line) and the black (load) to your thermostat black wires, but the diagram shows black & white being hooked up to your thermostat. You are not powering your thermostat because you're not completing the circuit.
The line-thermostat I put in the link in my previous post would do what you want though (break the hot like a light switch)