This Is Your Brain on Cornwall boiler installations

http://newprocesses.co.uk/Several-Opinions-On-Economical-Boilers-That-You-May-Not-Have-Wrestled-With.html

We always advise that you check your purchase with a qualified Gas Safe engineer. If you reside in an EU member state besides UK, import VAT on this purchase is not recoverable. She needed to install a new boiler