Other tools NBS offers a range of tools for specification and collaboration National BIM Library The most trusted BIM Library in the UK, certified to the internationally-recognised NBS BIM Object Standard Uniclass 2015 A dynamic and unified classification system for the construction industry covering all sectors Construction Information Service (CIS) A comprehensive online collection of construction related standards, regulations, technical advice and articles Plug-ins NBS provides a range of tools to help connect your CAD model to your specification model
Platform Resources Support Events About TheNBS.com Manufacturers Uniclass 2015 Get in touch

Platform

NBS Chorus Features and pricing Book a demonstration Sign in to NBS Chorus Other tools National BIM Library Uniclass 2015 Construction Information Service (CIS) Plug-ins

Resources

Knowledge Sample Specification Case studies Authors

Support

Training Downloads and updates

About

About NBS Newsroom

Platform

NBS Chorus Features and pricing Book a demonstration Sign in to NBS Chorus Other tools National BIM Library Uniclass 2015 Construction Information Service (CIS) Plug-ins

Resources

Knowledge Sample Specification Case studies Authors

Support

Training Downloads and updates

About

About NBS Newsroom

BS EN 677:1998 Gas-fired central heating boilers - Specific requirements for condensing boilers with a nominal heat input not exceeding 70 kW (Withdrawn)

Publication Year

1998

Document Status

Withdrawn

Abstract

Applies to gas-fired central heating boilers, which are declared by the manufacturer to be 'condensing boilers': of types B (excluding appliances without a fan) and C; using one or more gases corresponding to the three gas families; and for which the nominal heat input is less than or equal to 70kW.

Document History

Superseded by BS EN 15502-1:2012, BS EN 15502-2-1:2012 and BS EN 15502-2-2:2014.

ISBN

0580282066

Publisher Information

British Standards Institution

With over 100 years of experience the British Standards Institute is recognised as the UK’s National standards body. Their committees work with the manufacturing and service industries, government, businesses and consumers to facilitate the production of British, European and International standards.

389 Chiswick High Road
London
BSI
UK

Website: http://www.bsi-global.com/
Email: cservices@bsi-global.com
Tel: 020 8996 9000