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Does anyone else’s upstairs overheat? We need "Vertical Learning" for multi-story homes!

gzub
Community Member

Hey everyone,

I’ve been using Nest for a while, and there is a huge missed opportunity for those of us with multi-story homes.

The Problem: Physics vs. The Algorithm

Heat rises and Cool air sinks. Right now, my Nests act like they don't know they are in the same home.

If my lower zone is blasting heat, that warm air drifts upwards. But my upper Nest ignores this reality and runs its own heating cycle simultaneously.

The result? The upper floors roast and overshoot the target temp by 3-4 degrees. It’s a huge waste of energy.

The Feature Request: "Vertical Learning"

Since this is a "Learning Thermostat," it should learn my home’s vertical airflow.

Nest notices: "Every time the lower floor runs heat for 45 mins, the upper floor warms up by 2 degrees on its own."

Nest acts: "Okay, next time the lower floor runs, I'll delay the upper floor heat because I know free warmth is coming."

1 REPLY 1

ByronP
Community Specialist
Community Specialist

Hi gzub,

 

Thank you for posting in the community. I see you're having trouble with your Nest Thermostat displaying an incorrect temperature that overshoots the target reading by about 3-4 degrees, especially when using multiple area rooms. I appreciate all the detailed information and suggestions you provided, and I understand how frustrating this must be. I'm here to help.

To assist you better, please answer the following questions:

  • What type of Nest Thermostat do you have? (Here is a helpful article to identify the model of your Nest Thermostat).
  • When was the thermostat installed?
  • Where did you install your thermostat? (e.g., which room and whether it's on a wall or a stand).
  • Do you have other active Nest thermostats? If so, are they experiencing the same situation?
  • When did the situation start?
  • Have you tried any troubleshooting steps? If yes, would you mind listing them?
  • What is the brand/model of the HVAC/heat pump system?
  • Have there been any recent changes to the HVAC system?
  • Did you experience any recent power outages or power issues?
  • Could you send a picture of your HVAC system control board (if available)?

Please keep me posted on your findings.

 

Regards,

Byron