Many of us (like me) lack a so-called common or "C wire" in our home's HVAC wiring. That's a complicated way of saying there's no way for a smart thermostat to draw continuous power separately from the wires that actually control stuff, and that means you might run into issues, like your heating system flipping on when it shouldn't to top up your thermostat's battery, or a non-rechargeable model like the new Nest Thermostat dying faster than expected.

It's all honestly pretty obnoxious to deal with, but thankfully Google just announced a new Nest Power Connector that you can install yourself to fix the problem.

Read More