This isn't how a normal heatpump works. The w1 is actually your electric heat backup. The reversing valve is your 1st stage of heat. That said,if all of your controls are 24v, you can hook up almost any hp stat to do what you want as long as you install a remote sensor(normally closed) on the compressor circuit that opens on a drop in temperature,and the stat has the capability of calling for backup on it's own. Call a pro and have a Visionpro installed, like BL said.
Originally posted by kcroat
). However as I understand it the normal configuration for heat pump t'stats is for W2 to be hooked to supplimental electric heat, which is called for only when the heat pump (on W1) can't keep up. When it is too cold, I'd like to be able to not use the heat pump at all and go straight to the gas boiler (on W2). Do the typical 2-stage heating thermostats allow you to do this or do I need a more expensive model (other White-Rodgers or Honeywell)?