Jon, I don't think it's the voltage. I think that calibration is something that shouldn't cause you to worry about dying. And no, dianavin didn't ask how to level a thermostat, but kendall said, "And, it must be perfectly level. If it is off just a bit, it wont work." That right there should have made me think there was a leg or several being pulled. Good one, Sparky.
The companies who deliver the gas have installation and repair guys. I'd ask somebody professional. Or you can invite kendall over. You know CPR?