It is a disaster when you are old, infirm with respiratory problems such as Asthma, Obstructive Sleep Apnoea and other bronchial problems, plus arthritic problems that are also exacerbated by cold and damp...we live in a very old house! It was my first time on here and I had no idea where to post my problem so chose disasters after I posted it on another forum page where I read about replacements but had no idea which forum page that was, as I could not identify it! Show some sympathy and empathy to strangers...you never know their personal circumstances!