Keep Your MVHR Clean

Keep Your MVHR Clean

Mechanical Ventilation with Heat Recovery systems require regular maintenance. Regular cleaning and filter changes can reduce system pressure.

Filters are the first line of defence against airborne pollutants and other particles and should be checked and cleaned regularly. Airborne particles in the system can reduce airflow and impact on the ability of units to transfer heat. Serious problems can also occur with particle build up on motors and coils and will cause dramatic performance loss. These can impact on the overall running costs and indoor air quality.

Poor indoor air quality has been linked to sick building syndrome (SBS) or building related illness (BRI), affecting people in a variety of ways such as coughs and colds, headaches and reduced productivity and health.

If your system can't breathe properly, neither will you.

For assistance with maintaining your system, click here

'Healthy Home Mark' to combat Toxic Home Syndrome

According to a report by Professor of Building Science Hazim Awbi, poor air quality is connected with a range of undesirable health effects such as allergy and asthma symptoms, lung cancer, chronic obtrusive pulmonary disease, airborne respiratory infections and cardiovascular disease.

The lack of ventilation in new modern air-tight and energy-efficient homes prevents the escape of pollutants created during everyday tasks such as cooking and cleaning, leading experts to predict the number of asthma sufferers in the UK will double in just 35 years.

Those who spend the most time indoors, such as young mothers and the elderly will be worst affected as the anticipated increase in air-tightness for UK dwellings results in a decline in general air quality.

To overcome the problem experts are recommending people ensure their homes are properly ventilated and are urging the authorities to make it mandatory for new builds to come with a 'Healthy Home Mark' to indicate that a good ventilation system is installed.

Professor Peter Howarth, who specialises in allergy and respiratory medicine at Southampton University, called for increased awareness of what is termed 'Toxic Home Syndrome'.

'Toxic Home Syndrome occurs when individuals and families are exposed to a potent mix of airborne pollutants within the home arising from poor ventilation, causing respiratory and skin diseases to occur more frequently' said Professor Howarth.

Researchers suggest a change in the way homes are ventilated could reduce the overall burden of disease by around 38 per cent.

'I would like to see a 'Healthy Home Mark' on new homes to confirm that they have mechanical ventilation systems with effective heat exchange installed - to help reduce the health risks for future generations' Professor Howarth added.

'If people are exposed to high concentrations of pollutants over long periods of time, even non-chemically sensitive individuals can be susceptible to the associated serious health risks' he said.

Further information on healthy homes can be found at

Pavello - as featured on Channel 4's Grand Designs

Pavello - as featured on Channel 4's Grand Designs

BET designed, supplied, and commissioned the MVHR system used in the property.

Pavello can be seen in 'West Sussex' episode (episode 3 season 15) of Grand Designs.

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