I just had a new combi boiler installed on a tiled wall ... then decided to redecorate afterwards. I'm just wondering how big a job is it to remove the boiler so I can hack off the tiles behind and replaster, then put the boiler back. What would be involved, how long do you reckon it would take, and would it need to be done by a Gas Safe engineer? Any advice welcome (and yes I know I should have decorated BEFORE the boiler was installed!). Cheers