mar 7, 2018 · this shorthand means the thermostat supports up to 2 stages of heating and 2 stages of cooling. It’s okay if you have just 1 stage of heating or cooling. How to tell if. jul 2, 2011 · it is a 2 stage heat pump and the alternate heating is a natural gas furnace. In the nest controls there is a slider bar that lets you decide when the alternate heat should. jan 9, 2023 · this article describes how the nest learning thermostat controls this feature. Note that there are also models called nest thermostat (without the word learning). you'll need to set all your heat sources to electric and get the nest out of dual fuel mode. This should make it so that the wire in w2/aux is being treated as auxiliary heat (not.
