1-Our House has two complete heat-pump systems. Do we need two Nests?  2-Uur two thermostats are not on ideal locations. Can Nest be placed else where

Our 2 thermostats are both downstairs near each other. It creates many bad decisions. Is there a way to use a remote to separate them and get better control? Is this a wifi replacement but still a hard wired system. Can it controll 5000 sq feet?

  • Asked by William W from Villanova
  • May 30, 2012
Nest Learning Thermostat

Nest Learning Thermostat

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6 Answers from the Community

  • Answer

    You would require two thermostats. I have two heat pumps and two Nests, but one is upstairs. The nests are hardwired just like your current themostats. My Nests are both on my house wi-fi and identified by the location. This allows me to access them from my iPhone and iPad (and from the web). It seems weird that your thermostats are located next to each other. I can imagine that it does "make bad decisions."

    Nest Customer Support may be able to help. Just take a picture of your thermostats (with the covers off), send it to them, and they will tell you if it's compatible.

    My house is about 3000 sq feet. I've enjoyed my Nests completely. My wife does too.

    • Answered by Michael B from Henderson
    • May 30, 2012
  • Nest can only controll one heat pump, so two Nests will be needed.

    Nest needs a hard wire to your heat pumps, like your old thermostats, so you would need a HVAC installer to come out if you wanted to relocate them.

    • Answered by David K from San Jose
    • May 30, 2012
  • The Nest thermostats are wired thermostats. They have to be placed where the wiring goes from your heat pump systems to the existing thermostats -- unless you want to move that wiring. That said, two points:

    The Nests are smarter than your existing smart thermostats. I suspect they would do a better job than what you have today.

    The Nests are wifi enabled. I envision a future upgrade where you could place a remote sensor elsewhere in your home and have it control the Nest. Not available now and I have no unique knowledge of Nest's plans. But I do know that there are literally millions of homes with thermostats placed not for the comfort of the home's occupants, but for the convenience of the builder. It seems a natural extension of the line to me. So, keep watching.

    • Answered by Michael B from Cincinnati
    • May 30, 2012
  • 1. Yes, if they are individually controlled by separate thermostats, then you will need 2 Nests.
    2. They do need to be connected to the system they are controlling directly so they would have to go where the existing thermostats are located.

    • Answered by Josip M from San Diego
    • May 30, 2012
  • Answer 1) Although you dont NEED two nests, if you want to control them both via the nest platform it would be required. Also the Nests will communicate with each other to help cut down on unnecessary energy waste. For the best results, replace all of your thermostats with a nest.
    Answer 2)The Nests wire in to the same places where your thermostats are located currently. I had poorly placed units myself and just had the wires moved to a better location. Depending on your ability, you may be able to do this yourself.

    • Answered by Matthew S from Canton
    • May 31, 2012
  • 1. It depends on the heat pump systems. If they are two-stage, it probably won't work. It would be best to enter your wiring into the wizard on the Nest website, or send them a photo of the business end of your existing stats.

    2. No, it's hardwired to the place on the wall where your existing stats are. You would have to rewire to move them.

    Each Nest is a single unit. It connects to wifi only for settings control via smartphone app and software updates. There are no remote sensors. It's hard to answer the 5000 sqft question, but if both your existing stats are right next to each other, it would beg the question if they are placed well enough to sense the general/average temperature of the area that the system they control heats/cools. You may need professional evaluation, if you don't want to conduct a ~$500 experiment (not including the possibility of increased energy costs).

    I have had a Nest in my ~3500 sqft 2 story home in the midwest for a few weeks. We've only had to cool the house a couple days in that time, so I don't have good data in terms of performance yet.

    • Answered by Ben S from Cedar Falls
    • May 30, 2012