Rgi required. Need to know if modulating which i suspect not. Could be one of a few offenders but only way to find out is with the right equipment and knowledge....
You really need somone who is not scared of this boiler. Know of many an engineer who will not go near them. Generally though it is the usual suspects and really not that scary.
More than lightly the main burner is not modulating, sensor still available,,,worst case senario calorifior choked. Gas man req. Simple case for someone qualifyed to diagnois or however it is spelt.
Fitted nothing other than WB and installed correctly never had a minutes problem with them,,,,pin holing,,,,where??????? Vaillant are good i agree but hear nothing but problems with there customer service.
73%,,,very very optomistic. Many newer cast iron heat exchangers which are much smaller are well below 70%. "E" type Mmmm cut and run is the only realistic advice.
Hello all. Usually a contributer on this site on the heating side but need a bit of help. Have a couple of cloudy double glassed units upstairs. Think i will be moving soon so would just like to tidy them up rather than replace the whole window. Found a company called Cloudy2Clear...Has anyone...