Before you go and remove the appearance in Deathly Hallows: Part 1, look at this picture: AlastorMoody 05:14, August 24, 2011 (UTC)
Wikipedia says that modern kitchen stoves can have both an oven (defined as a "thermally insulated chamber used for the heating, baking or drying of a substance") and burners on top. I once lived in an apartment that didn't have a stove, but burners on the counter and an oven in the wall, but, in my experience, such arrangements are rare.
Thus I assume the image depicts a stove with an oven. It's in the wrong place to be a microwave, and though British kitchens frequently have washing machines in them (at least based on what I've seen on British home shows like Location, Location, Location), the window on one would be round, not square. ★ Starstuff(Owl me!) 06:06, August 24, 2011 (UTC)