what is your thoughts on this invention,, ive got a prototype made up of a devise that ,, will guarantee to fill an old styly central heating system ie tank and cylinder,,,with out creating air locks in the dwh or heating,, it will do this in under 15 mins ,, ive used it were plumbers have drained down a system, then have left the cylinder or a few radiators cold,, my concern is would it be bought ??in my area there is say 10 to 15 % who have yet to convert to a combi,, whats the percentage of old conventional systems in your areas?? its based on a refrigeration technology and would cost say 50 quid
