Connecting a 240v Water Heater to a Timer/Switch

[Danger]

I see by your avatar there has been some deterioration since then. :)

Actually, the avatar came before the member photo. A lot of people don't realize that the avatar is a photo of me in one of my Hallowe'en outfits. It took quite some time for me to get comfortable enough to post a real one.
Only my furnace, stove and water heater are gas appliances. My lights run on wax and fire, the fridge, freezer and main computer are water-powered, and my laptop has a gerbil on a treadmill turning a generator.