Friends - quick q on the Megaflo unvented indirect cylinder - ive been trying to get to the bottom of why my tank isnt holding its heat overnight when no hot water taps are on.. i use evohome hot water kit to set the temp at 55 overnight , by morning its 35 degrees. Suggests to me that hot water is being drawn somewhere in my system - something that seems to be supported by the fact the outlet pipe at the top is always hot (or should this be the case) - and that its gradually taking cold water from the mains. I had the air gap recharged, nothing coming out the tundish etc. Any ideas?
Should that pipe out the top be permanently hot? or should it only be hot when hot water is being drawn?
Should that pipe out the top be permanently hot? or should it only be hot when hot water is being drawn?