The first time showering in our apartment was quite memorable. Poor Steve learned the hard way that you cannot take hot water for granted here in Ireland. Meet the immersion water heater controller: When we moved in, I noticed this contraption on the wall but for whatever reason, I disregarded it. I remember thinking to myself, “This looks ancient and it’s set to ‘off’ anyway. Maybe it’s something that’s just been here for years and isn’t important.” I couldn’t have been more wrong. This important device controls the hot water supply for our entire apartment. When it’s off, you won’t have hot water. The previous tenants naturally turned it off…