Why is there a vent in my bedroom?

What’s the difference between a dMEV and a dehumidifier?

The core difference is function: a dMEV system actively extracts stale, moist, polluted air from a home and exhausts it outside, thereby providing continuous ventilation. A dehumidifier, conversely, only removes moisture from the air already present within the room and does not provide essential fresh air exchange, making it a dedicated humidity control device without...

What is BS EN 13142:2021 (formerly BS EN 15665)?

BS EN 13142:2021 is the British Standard adoption of the European standard specifying the performance characteristics, testing methods, and classification for components and products used in residential ventilation systems. It is a crucial reference for manufacturers, designers, and consultants to ensure that fans, air handling units (AHUs), ductwork, and other ventilation-related components meet minimum requirements...

What is BS EN 13141 Ventilation for buildings standard?

BS EN 13141 is a series of European Standards that have been adopted as British Standards (BS EN). This set of standards specifies test methods for determining the performance characteristics of various individual components used within residential ventilation systems. The series is crucial for ensuring that ventilation products—such as fans, air inlets, ducts, and air...

What is BS 5925:1991 Code of practice for ventilation principles and designing for natural ventilation?

BS 5925:1991: Code of practice for ventilation principles and designing for natural ventilation is an older, foundational British Standard that outlines the principles and design considerations for achieving natural ventilation in buildings. It focuses on non-mechanical systems, relying primarily on natural forces such as wind pressure (wind-driven ventilation) and temperature differences (buoyancy or stack effect)...

What is the CIBSE Guide B2: Ventilation and Air Conditioning?

Synonym(s): CIBSE Guide B: Heating, Ventilation, Air Conditioning and Refrigeration (HVACR), Part 2: Ventilation and Air Conditioning; The Engineer’s Benchmark for Ventilation. CIBSE Guide B2 is an authoritative, non-statutory publication produced by the Chartered Institution of Building Services Engineers (CIBSE). It provides comprehensive, detailed guidance on the design, installation, commissioning, operation, and maintenance of ventilation...

What is Energiesprong?

Energiesprong represents a paradigm shift from traditional repair-and-maintain retrofit to a whole-house energy performance service. Originating in the Netherlands, it is a proven model for delivering net-zero energy homes through an industrialised approach, fundamentally anchored by a 30-year, legally binding performance guarantee. The model reframes retrofit from a construction project into a replicable product. By...

What is BS 3632:2023 Residential Park Homes Standard?

UK Residential Park Homes, Mobile Homes, and Twin-Unit Homes. This standard is crucial for manufacturers, site operators, planning authorities, and residents as it specifies the minimum requirements for design, construction, and performance, ensuring a higher standard of permanent residential accommodation compared to holiday caravans. Synonym(s): Specification for Residential Park Homes, British Standard for Permanent Park...

What is Heat Recovery Ventilation (HRV)?

Heat Recovery Ventilation (HRV) is a controlled, continuous mechanical ventilation system that extracts stale, moist air from ‘wet’ rooms (kitchens, bathrooms, utility rooms) and simultaneously supplies filtered, fresh air to ‘dry’ rooms (bedrooms, living rooms). Crucially, before the extracted air is expelled outside, its thermal energy (heat) is recovered via a heat exchanger within the...

How does the AUREN meet the requirements of BS 3632:2023 – Residential park homes?

The AUREN 160 single-room MVHR unit meets BS 3632:2023 by delivering continuous, balanced ventilation and superior energy efficiency, crucial for modern airtight park homes. It uses a ceramic heat exchanger to recover up to 93% of heat and runs for as little as £5-£7 annually. Furthermore, it features automatic humidity control to actively prevent condensation...