Looking for advice with a lpg combi replacement in a static caravan. The existing one is a Worcester cdi24 boiler, way past it’s sell by date and is leaking water from numerous places. Had two different guys look at it and said parts cannot be obtained for the boiler and quoted £2000+ pounds to change it. If I was to disconnect the gas bottles then remove the old boiler leaving all pipe work in situ I could purchase a Vokera easyheat 25 for less than £500 how much could I expect to pay a Gas Safe to fit and commission the new boiler. As it is only used a few weeks of the year by family members I do not want to go overboard with the cost. Any help would be appreciated.