MVHR’s - what are they?
K EDWARDS • March 15, 2023
MVHR stands for "Mechanical Ventilation with Heat Recovery." It is a type of ventilation system that is used to provide fresh air to a building while also reducing energy loss.
MVHR systems work by drawing in fresh air from the outside and passing it through a heat exchanger. The heat exchanger captures the heat from the outgoing air and transfers it to the incoming air, warming it up before it is distributed throughout the building. This process helps to maintain a comfortable indoor temperature and minimise odours and humidity while also reducing energy loss.
MVHR systems can be used in both new and existing buildings. They are particularly useful in buildings that are airtight and energy efficient, as they can help to maintain good indoor air quality without compromising the building's energy performance.
There are two main types of MVHR systems: decentralized and central. Decentralized systems have a unit installed in each room, while central systems have a single unit that serves the entire building.
MVHR systems are a cost-effective and energy efficient way to provide fresh air to a building, as they help to reduce energy loss and maintain a comfortable indoor environment. They are also low maintenance and easy to operate, making them a popular choice for many homeowners and building owners.
How regular servicing can save your company thousands!
Why Air Conditioning is Essential for Bedfordshire Businesses: Comfort, Productivity, and Profitability
and what you should look out for!
What is all the fuss about?
What is Radon?
The general answer is - whatever suits the individual! But, there are other more specific factors which can assist you if you're wondering about the 'perfect temperature' for your a/c system. The ideal indoor temperature can vary depending on several factors, including the season, humidity levels, and the age and sex of the occupants(1). Here's a detailed overview: Winter During winter, maintaining a balance between comfort and energy efficiency is crucial: Healthy Adults: The World Health Organization (WHO) recommends setting indoor temperatures to around 18°C for healthy, well-dressed individuals (2). Elderly and Children: For older adults, young children, or those with health conditions, the ideal temperature is slightly warmer, around 20°C. (3) Summer In summer, the goal is to keep indoor spaces cool without excessive energy consumption: General Recommendation: Aim to keep indoor temperatures between 20-22°C (4). If using air conditioning, you may wish to consider setting your setpoint to around 23-24°C to save energy while maintaining comfort. As a rule of thumb; the higher the ambient temperature, the higher your setpoint can be to still feel comfortable. Humidity's Role Humidity levels significantly impact perceived temperature and comfort (5). High Humidity: Feels warmer, so maintaining an indoor relative humidity (RH) between 30-50% can help manage comfort efficiently (5). Low Humidity: Can feel cooler but may cause dryness; using humidifiers in winter when heating is on can balance this. Water features, fish tanks/bowls and pot-plants located in the appropriate room can assist with this as well. Gender and Age Considerations: Men and Women: Studies indicate that women generally prefer slightly higher indoor temperatures than men. The average neutral temperature can be about 2-3°C higher for women. Infants: Ideal room temperatures for infants range between 16-20°C to reduce risks associated with being too warm or cold (3). Older Adults: Keeping main living areas around 20°C ensures comfort and reduces health risks linked to colder environments (3). Tips to Maintain Ideal Temperature: Insulation: Proper insulation helps maintain temperature consistency and reduce energy costs (4). Ventilation: Ensuring good ventilation, especially in high humidity areas like kitchens and bathrooms, helps maintain comfort (5). Smart Thermostats: Use smart thermostats to automatically adjust temperatures based on occupancy and time of day. By balancing temperature and humidity, you can create a comfortable and healthy indoor environment for everyone. (1) feta.co.uk (2) www.zmescience.com (3) www.britishgas.co.uk (4) www.doubleglazingnetwork.com (5) www.groundworks.com
We are often asked what are the health benefits for those people using modern air conditioning systems, so we thought we'd outline them in a little detail! Modern air conditioning systems offer several health benefits for individuals in the UK: Improved Air Quality: Advanced filtration systems in modern AC units remove pollutants, allergens, and dust from the air, creating a cleaner and healthier living environment. This is especially beneficial for people with respiratory conditions like asthma or allergies. Humidity Control: By regulating humidity levels, air conditioning prevents the growth of mould and mildew, which can exacerbate respiratory problems and trigger allergies. This is also true for a/c systems used in heating throughout the winter months! Better Sleep Quality: Maintaining a cool and comfortable temperature in the bedroom can improve sleep quality. Cooler temperatures help the body relax and fall asleep faster, leading to more restful and uninterrupted sleep. Like the above, this is also true in winter as well. Reduced Heat-Related Illnesses: During heatwaves or hot weather, air conditioning provides a cool refuge, reducing the risk of heat-related illnesses such as heat exhaustion and heat stroke. Decreased Insects and Parasites: Air conditioning units help keep insects and parasites out of the home, reducing the risk of bites and associated diseases. This is caused by increased air quality, closed windows/doors thus decreasing insect ingress points and better humidity control. Enhanced Comfort: Consistent temperature control ensures a comfortable living environment, reducing discomfort associated with extreme weather conditions. Support for Mental Wellbeing: A comfortable and healthy indoor environment can positively impact mental wellbeing, reducing stress and promoting overall happiness. These benefits make modern air conditioning systems a valuable addition to homes and workplaces, contributing to both physical and mental health. Most of the above are obvious when you think about it and are ably supported by those with a/c in their homes, shops and offices!
We're often asked by prospective client; 'So, is Air Conditioning a recent thing then? I never used to see it as a kid'?
We get asked a lot about the efficiency of modern A/C units and, in truth, its a complex query with many answers. In an era where energy efficiency is paramount, modern air conditioning units have made impressive strides. These advancements are not just about cooling our homes and offices, but doing so sustainably and economically. 1. Energy Efficiency Ratings: Today's AC units come with improved SEER (Seasonal Energy Efficiency Ratio) ratings. Higher SEER ratings mean more efficient units, leading to lower energy consumption and reduced utility bills. 2. Smart Thermostats: Integration with smart home technology has revolutionized how we control our indoor climate. Smart thermostats learn your habits and adjust the temperature accordingly, ensuring optimal comfort while saving energy. 3. Inverter Technology: Unlike traditional units that operate at full capacity until the desired temperature is reached, inverter ACs adjust their speed to maintain a constant temperature. This reduces wear and tear on the unit and significantly cuts down on energy use. 4. Eco-Friendly Refrigerants: Modern units use refrigerants that are less harmful to the environment. These eco-friendly options not only reduce greenhouse gas emissions but also improve overall system efficiency. 5. Regular Maintenance and Upgrades: Regular servicing of AC units, including cleaning filters and checking for leaks, ensures they operate at peak efficiency. Upgrading older systems to newer, more efficient models can also provide significant savings. In conclusion, the efficiency of modern air conditioning units is a blend of advanced technology, smart controls, and eco-conscious materials. These innovations not only enhance our comfort but also contribute to a more sustainable future.
and do you need to be worried?
