Older boilers are now so inefficient compared to modern, eco-friendly models that upgrading can save you up to £235 a year. Hi, i currently have a baxi 133he combi plus boiler that has stopped working i need a like for like replacement and installation i live in se14 5ae,... Year parts & labour warranty. The vertical flue terminal is not including any adaptors. Online discount is available to domestic gas and lpg customers who receive an online quote for.