HOW!! Converting from back boiler to a Combi boiler???????

[Corgigrouch]

It isn't impossible to learn but to try to learn with no prior experience on your first project is madness... Most DIYers start with small jobs and build their confidence and experience over years 'till they are as good if not better than many pros... but with the questions that you have asked it suggests to me that this project is too much for you to start on....Start small and work yourself up to it....Your other half will love us for this advice.

 

[bluemoon729]

Haha that's a fair point thank you

 

[denso13]

Part p in some cases

No, part P in all cases.