I figured it out and installed a new thermostat today, wish I could have figured it out at the beginning of the heating system. I figured out what the Single Pole LR10499 22A-120/v240;18A-277VAC means. I just had to think about it longer. So it means 22 amps for 120/240 Volt system or 18 amps for 277 volt system, and since I am in the america 277 does not matter. So I need something for 22 amp system. The next part was to figure out the voltage. I looked the breaker box and the heating system was on a double breaker so that means I need a 220/240 thermostat. I ordered a King ESP230-R Electronic Line-Voltage from amazon. I found the king page has a lot info on there thermostats.
I hope this helps someone else and they can too start saving the plant and there...