Chrisfraser05- my experience with my VeraPlus is EXACTLY the same as yours! I can not understand this behavior, but I don't know the inner workings/programming of the Vera, so I've accepted this, makes troubleshooting a very time consuming exercise though!
As for the thermostat issue, I'm not accessing the heating elements in the electric furnace via the thermostat I am looking to control with Vera, just the fan, so I'm not concerned with overheating and/or underheating. My home is a passive solar design, I use this thermostat to cool the house in the winter when the solar gain drives the inside temp over 70 deg. The fan is activated by the thermostat and pulls the inside air through a solar mass, storing the excess heat. I use the same thermostat in the "heat" position to activate the fan when the temp falls below 50, pulling the heat from the solar mass to maintain the 50 deg (when I'm away). It works beautifully as long as I remember to change the setting when I'm going away (which I forgot to do, hence my search for a remote accessible thermostat).
thanks for the input. I see that a z-wave simple thermostat is the way to go rather than just a temp sensor. I'm looking at the 2gig unit, once I determine what voltage is available from the furnace. Right now there are 4 wires hooked to this thermostat, but there are additional unused wires coming from the wall that I may be able to employ for the "C" power source.