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Seasonal tips for maintaining an energy-efficient ventilation system

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Seasonal tips for maintaining an energy-efficient ventilation sysem

By Ruth MacEachern

Product Manager

Jan 04, 2024

Maintaining an energy-efficient ventilation system requires a proactive approach. Regular ventilation maintenance is essential to ensure that the system operates at maximum efficiency.

This article gives practical advice by season to ensure the long life and optimal performance of buildings designed with mechanical ventilation. Some mechanical ventilation maintenance can easily be carried out by homeowners, while the more detailed checks should be performed by a ventilation maintenance specialist.

Spring - a path to fresh air 

As the temperatures rise, this is an opportune time for ventilation maintenance by giving it a thorough check. Start by inspecting and cleaning the air intake vents. Over the winter, debris such as leaves, twigs, and dust may accumulate, hindering the system's efficiency. Ensure that these vents are clear to allow a smooth flow of fresh air into the system.

Additionally, spring is an ideal time to replace or clean air filters. A clogged filter not only reduces airflow but also forces the system to work harder which consumes more energy. This is a small yet impactful step in ensuring long-term energy efficiency

Summer - temperature regulation and regular checks 

As the days get warmer, the ventilation system plays a vital role in maintaining a comfortable indoor environment. Summer temperatures in the UK can vary greatly. One moment there’s a tropical heatwave and the next it’s freezing cold and pouring with rain.  If you have an older mechanical ventilation system check the thermostat settings to ensure they match the season's temperature fluctuations. 

Consider upgrading to smart technology that automatically adapts to the indoor and outdoor environment and the occupancy of the building,  for more precise control and energy savings.

Regular system checks should be carried out during the summer months as part of the ventilation maintenance process. Inspect the ductwork for any signs of leaks or damage. Leaky ducts not only compromise energy efficiency but also contribute to poor indoor air quality. A proactive approach to duct maintenance can avoid potential issues in the future.

Autumn - a transition for efficiency 

Autumn brings cooler temperatures and the need to prepare your ventilation system for the winter season. If you have an MVHR (mechanical heat recovery ventilation) system the system and filters should be inspected and cleaned. This ensures optimal heat transfer efficiency, a key factor in reducing heating costs.

Winter - cold weather considerations 

In the midst of winter, it's essential to address the challenges posed by cold weather. Ensure that the outdoor air intake is not obstructed by snow or ice in particularly cold snaps. Restricted airflow compromises the system's ability to bring in fresh air, potentially leading to a reduction in the quality of the indoor air.

If the system is not working correctly due to a drop in the outdoor temperature you should call a mechanical ventilation maintenance professional for advice. 

Good to know

We’re surrounded by pollutants, both indoors and outdoors. An efficiently working ventilation system can help protect our health. From cleaning products to furniture and gas heaters, indoor air quality can be just as dangerous as outdoor air pollution. Mechanical ventilation can help combat this problem.

 Year-round - professional inspections 

Regardless of the season, a regular professional inspection is paramount to the life of the ventilation system. These inspections not only identify potential issues early on but also contribute to the overall efficiency and performance of the system.

This inspection, combined with your own basic inspections and cleaning will ensure the ventilation system delivers the energy-saving benefits it’s designed for - optimal air quality and energy efficiency year-round.


The importance of energy-efficient ventilation extends beyond immediate cost savings. It encompasses environmental responsibility, health considerations, regulatory compliance, and the long-term sustainability of both individual homes and the broader construction industry.

Good to know

Poor indoor and outdoor air quality can affect your health and well-being. The World Health Organization records that 7 million people die prematurely every year due to indoor and outdoor air pollution.

Seasonal ventilation maintenance is crucial not only to reduce the carbon footprint of a building but also to make energy cost savings. Avoiding ventilation maintenance is a false economy and may result in major expenditure in the future if something goes seriously wrong. 

As more buildings are being designed and built to be energy efficient to help combat environmental damage mechanical ventilation systems will become the norm. Therefore, understanding the importance of mechanical ventilation maintenance is a part of creating a healthy living environment in our homes and for the planet.


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