Also see:
2.18.4.1.1 Compliance
MVHR systems shall comply with the Technical Requirements. Issues to be taken into account include:
- relevant standards
- product certification
- operative competency.
8.4.1.1.1 Relevant standards#
Relevant standards include:
BS 476 | ‘Fire tests on building materials and structures’ |
BS EN 1365-2 | ‘Fire resistance tests for loadbearing elements. Floors and roofs’ |
BS EN 1366-3 | ‘Fire resistance tests for service installations. Penetration seals’ |
BS EN 848-1, 2 & 5 | Fans for general purposes, testing, noise and electrical safety |
BS EN ISO 12001 | Noise emitted by machinery and equipment |
Approved Document F England | Ventilation |
Technical handbook Scotland | Section 3 Ventilation |
Technical Booklet NI | Part K Ventilation |
8.4.1.1.2 Product certification#
MVHR appliances should hold a current assessment by an appropriate independent technical approval’s authority accepted by NHBC confirming compliance with UK CA, UK NI or CE marking:
- declaration of conformity detailing the standards the product complies with
- documents to be available on request.
8.4.1.1.3 Operative competency#
MVHR systems should be installed by competent operatives:
- competent and familiar with the system being installed, installers who have been trained in accordance with the BPEC installers scheme would generally be acceptable to NHBC
- certified to a standard acceptable to NHBC.
Last updated: 2nd January 2024