Is anyone aware of something like the Nest or Filtrete/3M thermostats that works with line voltage (220V) electric baseboard heat?

I've installed Nests in my parent's house and just outfitted our warehouse with the Filtrete/3M model. I think both are pretty great and I would love to have them in my house. Unfortunately, I have electric baseboard heat. You would think this would be the easiest system to adapt to a wifi thermostat, but I can't seem to find a solution.

There is some mention on the 3M forums of adapting an electric baseboard system for a low voltage thermostat, but googling doesn't come up with much. Something that would sit between the 220V connection and Nest must exist. Right?