Currently extending my house and it looks like I won't be able to re-site my old Worcester Bosch 12/14 oil boiler so I guess it's time to buy a new condensing one. Had one set of plumbers out who seemed liked good guys but they only fit Worcester Bosch boilers and I'm sure I've read mixed reviews about them on here. Looking at a heat only boiler around 18/25kw, any thoughts on Worcester vs Grant vs Firebird (or any other recommendations for that matter). Thanks