Hi, I've got a hot water cylinder without a hot water topper tank - it' s a "Tribune Premier" by IMI waterheating - about 10 years old. a mate of mine said this is sometimes called megaflow. Does the hot water that I use actually sit in that tank - all 160 litres of it - at mains pressure? Or does the water I use sit in a coil within the tank directly connected to the mains supply and heated by the hot water from the boiler in the tank as I use it? Put it this way, my two showers in my house are very forceful and it only takes a couple of minutes to fill the bath. It is definitely not a combination boiler, i.e. the boiler does not come on when I want hot water. IF the mains water is heated by the tank contents as I use it, why don't I get a blast of really hotly water when I first run the shower (water that would have been sitting in the coil in the tank)? The other day I had to change taps downstairs. I switched the water off at the mains stop c*ck and ran the hot water. Only about two buckets full's came out.
On megaflow, if I add central heating inhibiter, does that get mixed to the heating contents of the hot water system? Is the hot water system a different hot water circuit, not connected together to the central heating? IF that's the case how would I get to drain the hot water cylinder? When I drained the radiators the other day, there didn't seem to be an excessive amount of water as would be the case if the cylinder was being drained.
My house is a common or garden modern detached house, 10 years old.
Confused... !!!! Steve