To answer a couple of points .
Blackrose : If i fit a cooker which has hob & oven in one unit with one gas feed then the other feed is in the perfect position for where the morco would be sited . Its the location of the redundant isolator that makes me think of installing a morco .
Ditchcrawler . My current set up for hot water is by eberspacher . The morco would be useful i feel as a way of avoiding battery usage and to be honest the fact that i will have a " spare " gas connection within 2ft of the morcos ideal ( only ) location . Because the worktops will be getting replaced i just see it as the best opportunity to install one . Another method of making hot water seems worthwhile ?
Ultimately , i do have an eber that is behaving well so the morco is not necessarily "essential " but if fitting one is feasable whilst the kitchen refit is going on then i thought it worth attempting to find out if it ll be a straightforward job or problematic
cheers again
ETA :,the subject of the bosch alternative was brought up by a chap at the boatyard . He suspected that the bosch has soldered pipework connections internally which he believes make it a possible BSS fail . At least , i think thats what was said