G
Gray0689
Personally I work on oil boilers all day long, avoid a combi at all costs. Worcester bosch oil boilers tend to be awkward and pigs to work on. In my view grant or warmflow. I personally have a warmflow external kabin pak which works a treat. From a servicing point of view grant + warmflow are practicly the same. Just the warmflowhas a slightly higher burner making it easier to service.
Agree on grant burners I normally fit of a concrete slab if just boiler house model