Thanks a combi would only get it above 48c in the summer. With a 35c rise it needs the incoming water to be above 18c. I'm sure when I did college level 3. 2015/2017 that it was just for storaged water. But this appears to have changed?
Does anyone that uses 15mm service valves to pipe up toilets. Put the hep2o flat rubber washers in that come with there tap connectors? Instead of the fibre washers?
If turning of the water to do work in the kitchen, with an unvented cylinder on the 2nd floor. Am I correct in saying turning off and draining the water won't effect/drain drain the cylinder, just the pipework?
Does the 2 port valve that's fitted on the central heating flow to an unvented cylinder coil. Have added a added safety device on to over a standard 2 port valve? To stop over heating? Thanks