Installation wiring help

[Weezy]

I can't tell if this is compatible. Do I have a Heat pump and a gas heater?  My number 919-3455041. #

[zoeuvre]

Hi Weezy, 

Thanks for posting here in the Community forum and for showing interest in our Nest Thermostats. Fortunately, your heat pump system's thermostat wires are compatible with our Nest Learning Thermostat 3rd generation and should be wired to the Nest Learning Thermostat as shown:

Also, here's a guide for the installation and setup of your Nest Learning Thermostat. 

Let us know if you have any other questions.

Best,

Zoe