piLogger is an open source project for monitoring heating systems for houses and apartment buildings.

A lot is to be learned from gathering temperature data from your heating system, and there is a lot of money to save.

Based on:

  • Raspberry pi
  • 1-wire interfaced thermometers, sensors and devices
  • Automatic data gathering
  • Dynamically generated graphs
  • Notifications for important events
  • Nagios integration

Find more info here: https://github.com/maglub/pilogger