Fresh Air Without Losing Heat

As homes become increasingly energy efficient, ventilation has never been more important. Advances in construction methods, insulation materials and airtightness standards are helping homeowners reduce energy consumption and lower heating bills. However, these improvements also reduce the natural airflow that older properties relied upon, making effective ventilation essential for maintaining a healthy indoor environment.

Traditionally, many homes have relied on trickle vents and extractor fans to provide ventilation. While this approach can be effective, it has several limitations. Fresh air enters directly from outside through trickle vents, often bringing cold air into the property during winter months. This can create uncomfortable draughts and increase the workload on the heating system. Ventilation rates can also fluctuate depending on external conditions such as wind speed, resulting in inconsistent performance.

A Mechanical Ventilation with Heat Recovery (MVHR) system offers a more advanced and controlled solution. The system continuously extracts stale, moisture-laden air from kitchens, bathrooms and utility rooms while simultaneously supplying fresh, filtered air to living areas and bedrooms. Before the stale air is discharged outside, its heat is transferred to the incoming fresh air through a highly efficient heat exchanger.

With heat recovery efficiencies typically between 80% and 90%, MVHR systems help retain valuable heat that would otherwise be lost, reducing the demand on the heating system while maintaining excellent indoor air quality. The system can also be precisely balanced to deliver the correct ventilation rates throughout the property, regardless of changing weather conditions.

The result is a quieter, healthier and more energy-efficient home, providing a constant supply of fresh air while helping homeowners maximise comfort and reduce energy costs year-round.

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