You really should check out Telldus (http://www.telldus.se http://www.telldus.se). Their Tellstick Net is simple enough that my father installed his own setup a

You really should check out Telldus (http://www.telldus.se http://www.telldus.se). Their Tellstick Net is simple enough that my father installed his own setup at the summer house, where he has a thermo sensor and two heaters plugged in to remote socket receivers. So when my parents are going there for the weekend, he checks the app on his phone before leaving to see how cold it is, turns on one or both heaters from the app, and the place is warm when they arrive. All of this is available in brick-and-mortar stores in Europe, total cost is something like $200.