To get your Nest HVAC runtime data, you'll need to use Google Takeout:
Step 1: Go to Google Takeout
Visit takeout.google.com and sign in with your Google account (the same one linked to your Nest device).
Step 2: Select Nest Data
In the list of Google products, find and check "Nest". You can deselect all other products to make the export faster and smaller.
Step 3: Choose Export Options
Click "Next step" and choose your export options:
- Delivery method: "Send download link via email" is usually easiest
- File type: Choose ".zip" or ".tgz"
- File size: Choose a size that works for you (2GB is usually fine)
Step 4: Wait for the Export
Google will email you when your export is ready (this can take several hours or even days).
Step 5: Find the HVAC Data
Download and extract the archive. Look for files like:
Nest/Thermostat/hvac_runtime_*.jsonl- Files containing "hvac_runtime" in the name
Step 6: Upload Here
Upload the JSONL file using the file picker above. The tool will automatically parse and visualize your HVAC runtime data!
Note: This tool works entirely in your browser - your data never leaves your device and is completely private.