In April, we had a new combi boiler fitted. Over the last couple of weeks, it has stopped working a couple of times because the discharge pipe (for getting rid of the condensate) has frozen (it runs externally because it wasn?t really practical to keep it inside). The first time the boiler stopped working we called the installer ? he told us it was probably a frozen pipe, but suggested it was due to leaf blockage in the downpipe that the discharge pipe connects to. DH checked, and the downpipe was clear.
The discharge pipe is 32 mm, so I think the installer has done things properly. However, it isn?t lagged. From the googling I?ve done, that seems to be the next logical step. Would it be unreasonable to expect the installer to do this free of charge?