i am looking to install a new combi boiler and am in the process of researching the various options. something i find worrying here is the corporate stock reply from veissman to poor reviews. clearly there's a problem with the control system being unfit for purpose but no solution is offered. just how many bad reviews does a company need to have before they take the appropriate action to fix the problem? these are clearly good efficient boilers but i'm not prepared to take the risk of having a control system i am unable to operate. has the control system been greatly simplified on the latest domestic models? furthermore, people are talking of a 10 year guarantee but, from what i have read, this seems to have been reduced to seven years in the uk. is this the case and if so why?