Dear Offended readers: I've obviously upset folks by offering alternatives and advice to people with waterheating, electrical and plumbing problems. It would be so easy for me to get irritated with you guys, who have nothing better to do with their time than criticise others for helping in the only way they know: but I won't. You may have noticed, though, that I answer queries specifically on water heating! If you can answer them better, go for it. Waterguyser.