Just remind me of the name of your company Tony, so that I know not to use you.
What would be the point of these sites if everyone were to go straight to their installer first?
Dont worry we dont work north of the border! In any case we only work for the property owner, or whoever is going to pay us and not for their "mates".
The point of this site is to help people understand problems with their heating and boilers. In some cases we can help reasonable competent DIYers to repair their system themselves or at least to get an idea of what might be wrong and how much that might cost to put right.
Safety dictates that gas and oil boilers are installed by competent qualified people. Its normal for an installer to visit and discuss with the owner what is required and how that can be accommodated.
Installation questions can only be answered at the property except when highly detailed pictures and/or plans are submitted.
Tony
Looking back at your posts I don't think it is the first time you have rubbed people up the wrong way Agile.
I don't see where I have been 'mildly argumentative'? I take your points on board and have no reason to doubt you. Most of the time you are quite unhelpful and seem do have a go at the OP rather than give a constructive answer.