Nest

[corradio]

The Nest app provides a history of heating (in hours) https://nest.com/support/article/How-to-read-my-Energy-History-on-the-Nest-Learning-Thermostat#energy-history-icons

The Nest api provides an hvac state (heating...) see https://developers.nest.com/documentation/api-reference, but no access to history to my knowledge.

Also see this thread on SO: https://stackoverflow.com/questions/24411859/does-the-nest-api-provide-a-way-to-get-historical-energy-usage

[martincollignon]

The API has been closed. Closing due to inactivity. Let's reopen if someone finds an API to fetch data on heating.