What Does MVHR Stand For?

MVHR stands for Mechanical Ventilation with Heat Recovery. It refers to a system that provides both adequate ventilation and energy-efficient heat recovery for commercial and residential buildings. MVHRs help to maintain indoor air quality by filtering, ventilating, and heating the air that circulates throughout a building. By recovering the heat produced by the building's heating system, MVHR also helps to reduce energy consumption and carbon footprint.

In this blog post, we'll delve deeper into how MVHR works, the benefits of using an MVHR system, and things to consider when installing an MVHR in your building.

How MVHR Works

An MVHR system consists of several essential components: two ducts, a heat exchanger, a fan, and electronic controls. Here's a brief rundown of how the system works:

1. The stale air from each room in the building is drawn into the system through a network of ducts and vents. As this air flows through the system, it passes across a heat exchanger. The heat exchanger then extracts the heat energy from the outgoing stale air.
2. The fan draws fresh air from outside the building and passes it over the heat exchanger. The heat exchanger then transfers the extracted heat energy from the outgoing stale air to the incoming fresh air, preheating the fresh air as it enters the building.
3. The pre-heated fresh air is then distributed around the building through a network of ducts and vents, ensuring that each room always has a constant supply of fresh, filtered, and warm air.
4. The stale air that has been stripped of its heat energy is then expelled from the building.
5. The MVHR system's electronic controls ensure that the system works efficiently and effectively, constantly monitoring the air temperature, humidity, and pressure levels in the building to ensure optimal performance and minimal wastage.

Benefits of MVHR

There are several benefits to installing an MVHR system in your building, including:

Improved Indoor Air Quality

MVHR systems ensure that the air circulating within the building is adequately ventilated, eliminating any stale air that can lead to the buildup of harmful pollutants, allergens, and other contaminants. Additionally, the filtration system removes dust and pollen, providing a safer and healthier living environment.

Enhanced Comfort Levels

By recirculating pre-warmed, fresh air throughout the building, MVHR systems help to maintain a comfortable and constant temperature. Unlike traditional heating and cooling systems, MVHR eliminates any temperature fluctuations that typically occur with non-recirculated air, ensuring that your home or office is always comfortable and cozy.

Increased Energy Efficiency

MVHR systems help to reduce energy consumption and cut down on utility bills. By recycling the heat that would otherwise be lost, the system uses less energy than traditional heating systems, leading to reduced carbon emissions and a lower overall carbon footprint.

Cost-Effectiveness

While an MVHR system's initial cost can be higher than traditional heating systems, the cost savings from reduced energy bills and maintenance make it a cost-effective investment over the long run.

Quieter Operation

MVHR systems typically operate quietly, making them suitable for residential settings where noise levels can be a concern.

Increased Value of Property

MVHR systems have become increasingly popular in recent years, particularly in high-end residential properties. As energy efficiency becomes a significant concern for buyers, having an MVHR system installed can increase the value of your property.

Factors to Consider When Installing an MVHR System

Here are some essential factors to consider when installing an MVHR system in your building:

Building Fabric

The effectiveness of an MVHR system relies heavily on the quality and airtightness of the building's fabric. If the building has numerous draughts, cracks, and gaps, the system will not be as efficient, and it may result in increased energy consumption.

System Size

MVHR systems come in different sizes to suit different building requirements. It's crucial to install an appropriately sized system to match the building's size, occupancy levels, and use. If the system is too small, it will not provide adequate ventilation. On the other hand, an oversized system will result in higher installation and maintenance costs.

Maintenance

Just like any other heating system, MVHR systems require regular maintenance to maintain their efficiency, reliability, and longevity. Maintenance includes cleaning the filters and checking the fans and ducts for any debris that could restrict the flow of air.

Installation

Installation should always be done by a professional. An experienced installer will ensure that the system is installed correctly and to the relevant building regulations.

Conclusion

MVHR systems are an energy-efficient and sustainable heating and ventilation solution for residential and commercial properties. They provide an adequate supply of fresh, filtered, and warm air while reducing energy consumption and carbon footprint. Installation and maintenance should always be carried out by a professional installer to ensure optimal performance and longevity. With all the benefits of MVHR considered, it is undoubtedly a smart investment for property owners who are looking for a reliable and efficient heating and ventilation system.