MVHR systems for your self-build

MVHR systems for your self-build

Discreet MVHR solutions that meet airflow requirements and improve your indoor air quality

The energy-efficient way to ventilate your self-build and improve your indoor air quality.

As we become more climate-conscious, we strive towards energy-efficient, more airtight homes. Yet, airtightness has presented itself as the perfect breeding ground for common problems such as condensation, mould and damp.

However, these are only the visible problems.

Some of the more overlooked issues are high CO2 levels, high levels of VOCs (e.g. from burning candles and off-gassing), radon gas, bacteria, viruses and other indoor air pollutants.

Blauberg’s whole-house MVHR systems and single-room MVHR units silently provide you with fresh, filtered air, while actively removing humidity and moisture to prevent damp and mould in your self-build.

You can control your indoor environment from wherever you are with smartphone and home assistant compatibility.

Whichever solution you choose, Blauberg offers the most-efficient MVHR systems on the market with a heat recovery percentage of up to 98%.

Why Do I Need MVHR?

A well-insulated self-build without air bricks and trickle vents requires a mechanical ventilation solution to prevent structural problems such as damp and mould, and to ensure optimal indoor air quality for occupants.

Building regulations stipulate that where natural ventilation is not possible, a mechanical ventilation solution must be installed in order to protect the health of occupants.

What is MVHR?

MVHR works by extracting stale warm air from your home and passing it through a heat exchanger. The heat exchanger transfers this heat to the fresh air from outside and it’s supplied into your house as filtered, warm air, therefore reducing heat loss associated with traditional ventilation.

Installing a Blauberg MVHR system allows you to:

  • Silently filter the air in your home to remove pollutants such as VOCs, bacteria, viruses, allergens and particulate matter, and control CO2 and radon levels, for a healthier living environment.
  • Reduce your energy bills and carbon footprint because we offer one of the most efficient MVHR systems on the market.
  • Continually ventilate your home whilst maintaining a stable indoor temperature.
  • Prevent damp and mould caused by water vapour and humidity in the home from daily activities like cooking and showering.
Centralised MVHR systems

For a whole-house solution, you may opt for a centralised MVHR system which is typically mounted in a loft or cupboard space with vents connected via discreet ductwork.

The in-room vents are low-profile with modern frameless design options for a seamless finish, free from cracks, lines and visible edges.

These systems can provide a range of airflow rates of up to 750m3/hour for powerful extraction, filtration and heat recovery for any room of your house, even those without external walls.

Centralised systems have a wide range of additional options, from heating and cooling add-ons to upgraded H13 HEPA filters.

Their energy efficiency is second to none, with A+ energy ratings and a heat recovery percentage of up to 98%, making Blauberg’s centralised systems the most efficient on the market.

Our Komfort EC SB Heat Recovery Units continue to be our flagship range, which you can browse via the link.

However, for a system that meets all of your needs and a more precise quote, please get in touch below.

Decentralised MVHR systems

Decentralised MVHR units are ideal if you’re looking to ventilate a select few rooms in your home or you want a system which you can add to over the course of time

These MVHR systems are mounted on external walls, therefore requiring no ductwork.

These in-room units can operate individually to target specific areas or collectively, to provide whole-house ventilation (with the exception of rooms without external walls).

In order to meet the individual requirements of specific rooms, our Vento range comprises four models of decentralised MVHR units: Maxi, Midi, Mini and Duo.

Each Vento MVHR unit can act as an intermittent extractor fan, positive input ventilation unit or continually operating, decentralised mechanical extract ventilator.

Vento units have G3 filters fitted as standard and F7 filters can be added as an upgrade (to our Midi and Maxi models), in order to remove allergens such as pollen.

Having a Vento unit in each room doesn’t mean you have to compromise on style, with a wide range of colour options available and a sleek in-room design.

This range has an energy rating of A and can recover up to 95% of heat.


Get in touch for a quote

Set on a product or want a recommendation? The easiest way to receive a quote and the best system for your needs is getting in touch on our contact page.

*If you need a system recommendation, we must know the size of your house (typically by sending us floor plans or room measurements).

Design package (optional)

We strongly advise this option as we can provide you with a physical drawing, specifying where to place vents and ducting, and match you with the exact products you’ll need. This prevents you from running into fitting issues or needing to order more ducting.


Whether you decide to fit it yourself, pass the equipment onto your tradesman, or use one of our recommended installers, installation is a simple process. Simple push-fit connections and minimal tools required.

Wi-Fi and warranty setup

Pair your system with the Wi-Fi, download our Blauberg app and control your indoor air all from your phone. Our systems are also Alexa and Google Assistant compatible. And don't forget to register your warranty!

We are there every step of the way, no matter how small or large your question, we’ll do our best to help you.

You may be wondering...

How do I get rid of damp?

MVHR is a fantastic damp solution because it constantly delivers fresh, filtered air into a room.

The airflow rate is 0.37 air changes per hour (ACH), enabling our systems to constantly extract stale humid air, one of the biggest causes of condensation and mould.

An MVHR system effectively solves air moisture problems in bathrooms and kitchens.

How loud is the typical MVHR systems?

When correctly designed and installed, an MVHR system is noticeably quieter than traditional ventilation. To give you an idea of what level of noise you can expect, please see below:

  • 20 dB(A) - a ticking watch
  • 25 dB(A) - the sound of an MVHR system
  • 30 dB(A) - Leaves rustling/whispering
  • 50 dB(A) - Average room noise
  • 60 dB(A) - Background noise

You'll be happy to know that our MVHR systems are often described as virtually silent.

I've heard of PIV, MEV and MVHR - what do they all mean?

PIV = Positive Input Ventilation draws fresh air from outside into your home. It does not extract stale air, it simply inputs air from outside, nor does it recover heat.

MEV = Mechanical Extract Ventilation extracts air out of the room. However, it does not provide any fresh air into the room, nor does it recover heat.

MVHR = Mechanical Ventilation with Heat Recovery extracts stale dirty air, cleans it and supplies filtered air back into the room. It also recovers heat by use of a heat exchanger, reducing your energy consumption.

© 2024 Blauberg UK Ltd. All rights reserved.