For those out there with a connected thermostat, Keen is a startup worth watching if you want to get the most out of your investment. The two-year-old company has built a connected air vent cover that you swap with your existing vents. The idea is that the app or overall home automation system will control the flow of hot or cool air into rooms that need it.

So if you aren’t in your bedroom all day, the vent will close and open later in time to make sure the room is comfortable for sleeping. The system may tie into motion detectors or presence tags eventually, but for now it’s going to track how you control it and use some pre-programmed common sense. I’m interested because I work in my office all day, and would love to try to cool and heat that smaller space as opposed to my entire house…