You are not an engineer, you are an installer or serviceman. It is as daft as calling mechanics engineers. I doubt you have ever seen the new Ferroli Modena.
He wants to get rid of gravity fed tanks. So a mains fed cylinder offers no more than a mains fed high flow combi. Even those off a tank are very limited to combis off a decent mains flow & pressure.
ianmcd, You are not an engineer, you are an installer or serviceman. Engineers are graduates not guys who have picked it up. It is clear you haven't a clue what an engineer is.
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