Need help viewing this PDF document? Follow the link to our Help With PDFs Section     Gain without pain ... ς High efficiency condensing system boiler ς Automatic boiler bypass ς Anti-scale control system ς Frost protection system ς Electronic ignition system ς Ultra-compact dimensions ς 24 hour electronic programmer ς No compartment ventilation required ς 1 year guarantee If You Are Considering Purchasing a Flue Kit Please Take Into Consideration: Ο60 / 100mm is the flue diameter for horizontally exiting kits and Ο80 / 125mm is the flue diameter for vertically exiting kits Product Brochure View Riva Compact HE Brochure Installation and User 2004 Edition - June 2004 Edition - July 2004 Edition - Sept (1) 2004 Edition - Sept (2) Service 2004 Edition - June 2004 Edition - July 2004 Edition - August 2004 Edition - September Spares 2004 Edition - Feb The 'Boiler Product & Technical Data' links on these pages are Adobe« Acrobat« PDF files. Clicking on a link will attempt to open the PDF in a separate Explorer window. As some of these technical documents are large, we recommend RIGHT-CLICKING on the link and choosing 'Save Target As' to download the file to your local hard drive before opening.