MVHR Wall Air Valves: Choosing the Right Wall & Ceiling Valves
MVHR Wall Air Valves: Choosing the Right Wall & Ceiling Valves
When installing a Mechanical Ventilation with Heat Recovery (MVHR) system, choosing the right air valves is an important part of achieving effective airflow throughout your property.
MVHR wall air valves and ceiling valves act as the final connection between your ventilation ductwork and the rooms in your home. They help distribute fresh, filtered air into living spaces while extracting stale, humid air from areas such as kitchens, bathrooms and utility rooms.
At BPC Ventilation, we offer a range of internal air valves, including traditional PVC supply and extract valves, discreet wall-mounted diffusers and stylish ceiling air valves suitable for modern interiors.
Whether you're installing a new MVHR system, renovating your property or replacing existing ventilation components, there's a variety of options to consider.
What Are MVHR Wall Air Valves?
MVHR wall air valves are internal ventilation terminals installed into walls to allow air to enter or leave a room through connected ductwork.
They work alongside your MVHR unit and ventilation system to maintain a continuous flow of fresh air throughout the property.
There are two main types of air valves:
- Supply air valves: Deliver fresh, filtered air into rooms such as bedrooms, living rooms and dining areas.
- Extract air valves: Remove stale, humid air from bathrooms, kitchens, utility rooms and other designated extract areas.
Wall-mounted air valves can be a practical choice when ceiling installation isn't suitable, provided the valve, ductwork and room layout are designed for the required airflow.
Wall Air Valves Available from BPC Ventilation
BPC Ventilation supplies a selection of internal air valves to suit different installations, budgets and interior styles.
1. Quiet-Vent Plastic Supply & Extract Air Valves
For a practical and affordable ventilation solution, the Quiet-Vent Plastic Air Valve is a versatile option.
Suitable for installation on walls or ceilings, this adjustable valve can be used for supply or extract ventilation, depending on the system requirements.
Key features:
- Available in 100mm, 125mm and 150mm sizes.
- Suitable for wall or ceiling mounting.
- Adjustable central disc for airflow regulation.
- Durable plastic construction.
- Removable components for straightforward cleaning.
Its simple white finish makes it a practical choice for residential and light commercial ventilation installations.
View Quiet-Vent Plastic Supply & Extract Air Valves
2. Quiet-Vent 125mm Supply & Extract Air Valves
A 125mm air valve is a popular option for domestic ventilation systems using compatible 125mm duct connections.
BPC Ventilation offers dedicated Quiet-Vent PVC supply and extract valves for projects requiring controlled airflow.
The 125mm PVC Supply Air Valve is designed to deliver air into a room, while the 125mm PVC Extract Air Valve provides a termination point for removing stale or humid air.
Both offer durable PVC construction and a compact white design.
Explore the options:
3. Ergovent LINEO Linear Wall & Ceiling Diffusers
For homeowners looking for a more contemporary finish, the Ergovent LINEO range provides a discreet alternative to traditional circular air valves.
These linear diffusers can be integrated into suitable walls or ceilings, creating a slim ventilation opening that blends into the surrounding interior.
The Ergovent LINEO 500 features a narrow linear design, compatible 75mm duct connections and an integrated airflow balancing damper.
This makes it an attractive option for modern homes, self-build projects and renovations where ventilation performance and interior aesthetics are equally important.
Explore the Ergovent LINEO 500 Diffuser
What About MVHR Ceiling Air Valves?
Although wall-mounted valves are suitable for many applications, ceiling air valves remain a popular choice for domestic MVHR installations.
Ceiling valves can provide effective air distribution while keeping ventilation components away from furniture and everyday living spaces.
BPC Ventilation stocks a variety of ceiling valve designs, from traditional white PVC options to modern flush-mounted diffusers.
Ergovent RONDO Invisible Ceiling Air Valves
The Ergovent RONDO range offers an elegant solution for homeowners who want their ventilation system to blend into their interior design.
These frameless air valves are designed to be recessed into plasterboard ceilings and finished to match the surrounding surface.
Once installed and decorated, the valve creates a clean, minimal appearance without the prominent frame of a conventional air terminal.
View the Ergovent 125mm RONDO Invisible Ceiling Air Valve
Duco Premium Invisible Air Valves
Another option for contemporary interiors is the Duco Premium Invisible Air Valve.
This recessed ceiling valve is designed to provide discreet air supply or extraction while maintaining a minimal finish.
It features adjustable airflow settings and uses Coanda-effect air distribution for supply applications, helping direct air along the ceiling rather than straight down into the room.
Explore the Duco Premium Invisible Air Valve
Wall Valves vs Ceiling Valves: Which Should You Choose?
Both wall and ceiling air valves can provide effective ventilation when correctly specified and installed.
The best option will depend on your property's layout, ductwork routes, interior design and the airflow requirements of each room.
Wall air valves may be particularly useful when ceiling space is limited or when ventilation ductwork is more conveniently routed through wall cavities.
Ceiling air valves are often preferred where there is suitable space above the ceiling for plenums and ductwork. They also offer plenty of design options, including discreet and virtually invisible finishes.
Whichever location you choose, your air valves should be positioned and commissioned in accordance with the ventilation design to achieve the required airflow rates.
Frequently Asked Questions
Can MVHR air valves be installed on walls?
Yes. Certain MVHR air valves are designed for wall installation, while others can be installed on either walls or ceilings. Always check the manufacturer's installation instructions before fitting.
What is the difference between a supply air valve and an extract air valve?
A supply air valve delivers fresh air into a room, while an extract air valve removes stale or humid air. Both play an important role in a balanced MVHR ventilation system.
What size air valve do I need?
Common air valve connection sizes include 100mm, 125mm and 150mm. The correct size depends on your ductwork, required airflow rates and ventilation design. A 125mm air valve is one option commonly used in residential ventilation installations.
Do MVHR air valves need adjusting?
Yes. Adjustable air valves are typically set during commissioning to achieve the correct airflow rates. Once balanced, their settings should not be changed without checking the system requirements.
Are invisible ceiling air valves available?
Yes. BPC Ventilation offers discreet options from brands including Ergovent and Duco, allowing ventilation components to blend into modern interiors.
Find the Right Air Valves at BPC Ventilation
From practical PVC wall air valves to modern flush-mounted ceiling diffusers, BPC Ventilation offers a wide selection of ventilation components for domestic and commercial projects.
As the No.1 Independent MVHR Supplier, we help homeowners, installers and trade professionals find suitable ventilation products for their installations.
Whether you're upgrading your existing system or planning a complete MVHR installation, our team can provide expert product advice and technical support.
Explore our complete range of internal air valves or send us your plans for a free ventilation estimate.
