A beginner's guide to MVHR systems
As we become increasingly focused on both housing efficiency and indoor air quality, solutions like Mechanical Ventilation with Heat Recovery (MVHR) systems are an integral component. These systems are an effective way to improve the comfort of your home and improve health while also reducing energy consumption and carbon emissions.
With rising energy costs and a growing understanding of the importance of sustainable living, homeowners are beginning to view MVHR systems as a smart, long-term investment in their property and the future of our planet. Suppose you're committed to reducing your carbon footprint and enjoying a healthier home. In that case, MVHR is a practical and forward-thinking solution that can transform your living space in ways that other home technologies cannot.
What is an MVHR system?
MVHR systems are advanced ventilation solutions designed to bring fresh, filtered air into your home while recovering heat from the stale air that is being extracted.
You may also hear them referred to as heat recovery ventilation (HRV) or comfort ventilation. A properly fitted heat recovery ventilation system provides a constant supply of fresh, filtered air, maintaining air quality. This ensures continuous indoor air quality and prevents heat loss, making it an energy-efficient choice for homeowners who value comfort and environmental sustainability.
How does an MVHR system work?
MVHR systems work by utilising two primary airflows: one that removes stale, moisture-filled air from areas such as kitchens and bathrooms and another that brings fresh air into living areas like bedrooms and living rooms.
The system consists of two main components: a heat exchanger and ductwork. As stale air is extracted from your home, it passes through the heat exchanger, where its heat is transferred to the incoming fresh air. This means the incoming air is pre-warmed before it enters your living space, which reduces the amount of energy needed for heating.
One of the remarkable aspects of MVHR systems is that they function effectively in homes with high levels of insulation and airtightness, which are typical features of modern, low energy buildings. These homes particularly benefit from MVHR because, without good ventilation, they can quickly become stuffy and damp. The MVHR system continuously circulates fresh air without compromising the home’s airtightness, a key difference from older ventilation methods like extractor fans or window vents, which can compromise heat retention.
In addition to reducing energy consumption, MVHR systems also enhance indoor air quality by filtering out pollutants, allergens, and outdoor contaminants, which is particularly beneficial for those living in urban areas. This ability to provide clean, fresh air while conserving energy makes MVHR a popular choice for individuals seeking to create a comfortable and low energy home. The constant extraction of air from the rooms also ensures internal VOC’s and humidity are kept within healthy limits.
By investing in MVHR, homeowners are taking a big step towards making their homes more sustainable, energy-efficient, and healthy.
The benefits of MVHR systems for UK homes
MVHR systems offer many benefits for UK homeowners, particularly as energy efficiency and environmental sustainability become increasingly important. These systems not only support greener living but also help to create a healthier and more comfortable home.
Environmental benefits
MVHR systems are designed to reduce energy waste by recovering and reusing heat from the air that's leaving your home. By doing this, they can lower your home’s overall energy use and reduce carbon emissions. Studies have shown that MVHR systems can recover up to 90% of the heat that would otherwise be lost through traditional ventilation. This means that with MVHR, you're ventilating a home in a way that supports your commitment to sustainability. For homeowners who want to reduce their carbon footprint, this energy efficiency is a valuable benefit.
Health benefits
The quality of your indoor air has a significant impact on your health, particularly in homes where allergens, dust, and moisture can accumulate without proper ventilation. MVHR systems continuously filter out airborne pollutants and allergens, creating a cleaner, healthier environment in your home. This can be particularly beneficial if anyone in your household has allergies or respiratory sensitivities. As one homeowner with MVHR said, “Our home feels fresher and cleaner, and we’ve noticed less dust and pollen indoors, even during peak allergy season.” MVHR systems also help to control moisture levels, preventing mould growth and promoting healthier air.
Financial benefits
By capturing and reusing heat, MVHR systems can help homeowners reduce their heating costs, especially during the winter months. With energy prices rising, these savings can add up significantly, making MVHR a cost-effective solution overall. An energy-efficient home not only reduces your monthly bills but can also increase in value as eco-friendly features become more desirable in the property market.
Condensation control
Condensation can be a frequent problem in UK homes, particularly in the colder months. MVHR systems help support balanced humidity levels, reducing the likelihood of condensation on your windows and walls. This moisture control is essential for maintaining the structural integrity of your home and preventing issues such as dampness and mould.
For UK homeowners seeking to minimise their environmental impact while keeping a comfortable and healthy home, MVHR systems offer a compelling solution, striking a balance between energy efficiency and long-term sustainability.
If you have any further questions, please visit our MVHR systems FAQ page or contact us directly.
Is an MVHR system right for your home?
Deciding whether an MVHR system is right for your home depends on several factors that affect its effectiveness and value. MVHR systems are most effective in homes that are well-insulated, airtight, and designed with energy efficiency in mind. If you live in a modern, energy-efficient home or are considering retrofitting one, an MVHR system can significantly enhance your indoor air quality and reduce your energy consumption.
We have a comprehensive 21 Degrees MVHR systems page, which delves deeper into the systems and services we offer to ensure you get the best MVHR experience for your home. You can also contact 21 Degrees for information on MVHR design and a quote.
