pentioner whos boiler i look after has bloked domestic heat exchange and im looking for instructions on how to take it out i have done these before usally have screw and 7mm bolt to undo and they fall out BUT this heat exchange is a 7140 has nuts and internal threads im thinking must be early...
hi im new to this forum and have a ? is it busy out there. im a self employed heating engineer an advertise in local free papers as i have for the last 10 years but this seems to be the worst october i have experience in that time. i have work coming from existing customers but also need new...