The boiler is fine, just as expected from my research. Fitters were less than helpful appearing only to want to finish up quickly. Their tidying up also left a lot to be desired, leaving behind some of the old boiler parts which I had to dispose of myself. I also spent some considerable time cleaning after they left. I believe this was mostly due in part to them being sub-contracted or self employed and I believe they would have paid more attention to detail had they been members of Stay Warm staff who were all most attentive. Hope this helps, regards. Peter