About: bonus-eventus

Carbon is a big source of concern for the world right now. Greenhouse gasses have been flooding our environment for such a long time now that we’ve done irreparable damage to our planet. Thankfully, the world has woken up to the danger, and now we are all able to make changes to reduce our impact and really make a difference. If you own or run a commercial building, one of the ways you can do this and do your part to become carbon neutral, is by switching your heating, ventilation and air conditioning solution from gas to heat pumps.

What Does Carbon Neutral Mean?

Being carbon neutral means you are not contributing any carbon to the environment, but you aren’t removing it either. Given that very few businesses can actively remove carbon from the environment, being carbon neutral is the big goal for all businesses and anyone who owns a building in the UK. This can be achieved by adopting environmentally friendly policies and either upgrading or retrofitting equipment with more eco-friendly alternatives.

In fact, there’s a Zero Carbon Buildings Initiative in place at the moment, in which the UK government pledged to achieve a net zero carbon emissions goal for the country by 2050. Since a large portion of carbon emissions are generated by buildings, this is one of their first focus points. existing buildings to be retrofitted wherever possible with zero carbon solutions, rather than knocked down and a new building erected. This will save a significant amount of carbon by itself, and if new buildings are being designed and constructed in a carbon neutral fashion, suddenly zero carbon buildings become a lot more achievable.

How Do Heat Pumps Help?

The big question now is, what can you do to reduce the carbon footprint of your building? You might think that you’re locked into all of the legacy systems you have in place, but this simply isn’t true. In fact, most modern systems can be retrofitted into older buildings, replacing your less efficient and more wasteful systems in the process. In terms of heating, ventilation and air conditioning for your building, the best answer is a heat pump.

Switching from a gas boiler to a heat pump is a relatively simple process. Choosing the type of heat pump you want will depend on your location, access to resources and other things, and once installed can save you a massive amount of carbon emissions. In fact, while a gas boiler produces around 4500 kWh of CO2 per year, a heat pump produces just 2,20 kWh of CO2 emissions, largely through its power source – electricity. And since they last around 14-15 years compared to the gas boiler’s 10, they keep the CO2 emissions lower for longer.

The Magic Ingredient

Of course, heat pumps do an amazing job, and they are a great first step in your carbon neutral journey. But while they are low carbon, they aren’t zero carbon by themselves, since they require mains electricity to run. The real magic comes when you pair heat pumps with renewable energy. In other words, solar panels.

By utilising solar energy you’ve generated yourself, you can completely negate the need for mains electricity for your heating, ventilation, and air conditioning. This is not only a great cost saving exercise (since energy bills for most commercial premises can add up to thousands a month in just HVAC costs), but it also slashes your carbon emissions for the system to basically zero. If you have a well-insulated building then you can enjoy efficient heating at low cost and zero carbon emissions. Now isn’t that magical?

At Bonus Eventus Maintenance we are passionate about the environment and reducing the carbon footprint of our own business as well as our clients. We are currently consulting with a number of block and facilities managers on the changes that would need to be made to their HVAC systems to meet this target, and if you’re in a similar position we’d love to help you too. Just get in touch with the team today for a free consultation. And if you want to know more about energy efficient HVAC solutions, keep an eye on the blog.

In the past we’ve talked a lot about the environmental impact of buildings, particularly when it comes to heating them and supplying them with water. And we’ve also mentioned the benefits of heat pumps as an alternative to traditional gas boiler systems in terms of both energy and cost. But if you want to be really green (and almost eliminate your energy bill), then you can combine two powerhouses of green energy – heat pumps and solar panels.

How Do Solar Panels Work?

Solar panels are by no means a new invention. But they are something that’s flown under the radar for many years, largely because the technology was still too expensive to be commercially viable. However, with a lot of development in the last decade and funding schemes from local governments, solar panels are now an affordable solution for businesses and homeowners alike.

So, how do they work? Solar panels essentially absorb the energy from the sun and convert it into energy. That’s the simple version. The more complex version is that on a subatomic level the panels allow photons (or particles of light) to knock electrons free from their atoms, generating a flow of electricity. This is because each solar panel is made up of lots of small panels, also known as photovoltaic cells. Each of these cells takes in sunshine and UV energy, and turns it into electricity.

Solar panels are made by attaching a lot of these individual photovoltaic cells together and sandwiching them between two layers of semi-conducting material, usually silicon. This protects the cells and the people around them, and allows the cells to work together in generating a substantial electrical current.

These panels are attached to the roof of your building, where they get the most exposure to sunlight. A qualified installer can then wire them directly into your electrics or attach batteries, so that the energy they generate can be used to power the building or be stored in battery cells for a later date. It’s a little more of an upfront expense, but it’s the ultimately renewable, green energy source.

So How Do Solar Panels Power Heat Pumps?

So in this blog we’ve talked a bit about heat pumps work when compared to a traditional gas boiler. You can read in more detail there, but in essence they work by absorbing thermal energy from a low-grade source, transferring it to a heating element with a higher temperature and dispersing it through the system. The source for the thermal energy can be air, ground or water, depending on your premises and limitations.

Heat pumps are generally much more energy efficient (around 400%) and much more environmentally friendly, since they produce far less CO2 and require less energy to run. So, switching to a heat pump is already a great step toward reducing your carbon footprint. But if you want to really make cost and environmental savings, you can take it one step further and connect solar panels to your heat pump. This means that any electricity the heat pump requires to operate will be powered by the greenest, most renewable form of energy – sunlight. Which is better for the environment and better for you.

On average, a heat pump (of any variety) will use around 25% of its rated heat output in electricity. So for a 20kW heat pump, up to 5 kW of electricity is needed. If you can provide that electricity through solar power, rather than buying from the grid, you can save yourself a huge amount of money. And if you invest in battery storage for your solar panels as well, you can retain any extra energy you generate for use during production dips (aka winter in the UK!).

At Bonus Eventus Maintenance, we’re really passionate about the environment. We’re always looking for ways to reduce the environmental impact of heating, ventilation and air conditioning, and passing that knowledge on to our clients. By advising our clients to combine solar panels and heat pump solutions, we hope to help you save money, and do your bit to save the planet. If you’d like to find out more, just get in touch with the team today to book your free consultation.

Over the last 5-10 years, people have been working indoors a lot more, for longer periods of time, and spending less time outdoors. Especially over the last few years, when a pandemic confined most of us to the indoors for months at a time. This change in behaviour has had a knock-on effect on a lot of things, from our overall activity levels to vitamin D deficiency becoming much more common. But one of the things most people don’t realise is that the quality of the air we breathe when we’re at work for 9 hours a day can have a real impact on our concentration, our productivity and our health. We spend 90% of our time indoors at work, so the impact of poor air quality is pretty severe. Which is why we‘re amazed that there is still no legislation out there setting an acceptable Indoor Air Quality (IAQ) standard for the workplace.

Gradual Decline In Air Quality

Innovation and new technologies are great things, but when they are at the cost of our environment, you have to start asking some questions. Our cities are becoming increasingly polluted by with car fumes, airborne industrial waste and even particles from log burners. All of that heavily polluted air is then being pulled into our buildings through windows, doors and ‘fresh air’ ventilation systems. Some of that air is filtered, but since there is no standard requirement for the level of filtration, there is no way to tell. And with most commercial air conditioning units being only used for temperature control instead of air quality, a lot of employees are spending 90% of their time in a workplace with substandard air quality. That might not seem like a major issue, but breathing low-quality air day in, day out can have some pretty negative effects.

The Unseen Effects Of Bad Air Quality

Bad air quality doesn’t just make you cough – the impact is far more widespread than that. For example, having a low relative humidity (below 40%) environment increases the lifespan of airborne pathogens, helping them stay suspended in the air for longer and travel further, spreading infection throughout the workplace. Viruses like the flu and norovirus survive longer at an RH of 20- 30%, whilst a mid-range RH between 40% and 70% will minimise their survival. Low humidity and air quality will also make people feel cold, leading to a rise in heating bills, a wide range of health problems and increased absenteeism.

But, you can’t have your RH too high either. Above 60%, people will start to feel uncomfortable and out of proportion with the actual indoor temperature. This will make people a bit edgy, sweaty and generally unable to focus. This causes people to turn on air conditioning or comfort cooling, sending energy costs through the roof. High humidity also encourages mould growth and condensation within your HVAC system and which at best causes a temporary dip in system efficiency, and at worst can create mildew, mould that will be spread throughout the building and cause all of the associated health-related problems for your employees.

Lack Of Regulation

At the moment there is no specific legislation around air quality in general workplaces. However, a lot of organisations have started to realise the impact air quality can have on employees, and so have been recommending proper HVAC systems to improve air quality and maintain an RH of 40-60% in all commercial workplaces as a standard. These organisations include:

• Humidity Group Of The HVAC Association
• The World Health Organisation
• The National Association Of Optometrists

It’s also the range recommended by BS EN 29241 as the optimum for visual display terminals. Not only that, but these organisations have also recognised the importance of good HVAC operation and maintenance in office environments, and how much it contributes both to the thermal comfort of employees and the indoor air quality of the workplace.

At Bonus Eventus Maintenance, we believe that the main barrier to properly addressing these IAQ issues is commercial. We seem to shy away from setting coordinated regulated standards to ensure excellent IAQ as this would result in extra investment in plant equipment and slightly higher running costs due to higher maintenance requirements. Really, what we should be considering as an industry, employers, employees and society as a whole is whether improving IAQ to underpin improved health and wellbeing is worth that investment. Of course, we believe it is. If you would like to find out more about how to improve IAQ in your workplace, just get in touch with us today.

When it comes to the world of heating there is a lot of technical jargon that gets thrown around, and one of the most common is ‘HVAC’. We’re guilty of that as well – it’s a term we use a lot. But when you don’t work in the industry, you might not quite know what a HVAC system is, and how it’s different from the air conditioning units you can buy online, or your home boiler. So today, we’re going to look at the difference between the two, and why there is so much confusion.

What Is HVAC?

HVAC stands for ‘heating, ventilation and cooling’. Its job is to heat and cool a building and provide proper ventilation so that moisture can escape and not cause issues like mould. HVAC systems are made up of a range of different elements that are combined into one efficient and easy to manage system, and are most commonly found in commercial properties like blocks of flats, restaurants, office blocks and so on.

HVAC units can take on many different shapes and sizes, all offering different benefits depending on their design and the spaces they’re being used in. The average HVAC system might include any combination of:

• Heat pumps
• Boilers
• Air conditioning units
• Ducting
• Moisture vents
• Refrigerant lines
• Condensing units

And much more besides. In short, if it controls the temperature or air quality of a building, it comes under the umbrella of HVAC.

So What Is Air Conditioning?

So is HVAC is heating, ventilation and air conditioning, why is air conditioning also a separate thing? Well, it’s mainly because air conditioners only do one thing – condition air and move it through the space. They do this by filtering air as it comes in, removing humidity and heat and then pumping cool air back into the home and sending the warm, humid air through vents and back outside. They are also equipped with special filters that can remove particles and allergens like pollen and dust, cleaning the air you breathe in the room.

You can buy mobile air conditioning units for small spaces, complete with extraction duct, but they are rarely effective. Instead, we always recommend having an in-built air conditioning unit to get the maximum benefit, either as a window unit, a mini-split system or as part of your wider HVAC solution. Which leads us back to our main question…

Is There Really A Difference?

Yes, and no. Air conditioning has its own definition and can be used as a standalone solution, but it also makes up part of the HVAC systems. Some properties will have a separate heating and cooling system in place already, and so they only require an additional air conditioning unit to provide that filtration and clean air supply. But most will need a full HVAC system to provide heating, cooling and ventilation as one integrated solution. The trick is understanding what’s going on in your building and being able to decide which option is right for you. That’s where we come in.

At Bonus Eventus Maintenance we work with companies to install and maintain air conditioning and full HVAC systems of all shapes and sizes in commercial properties. Our experts can advise you on the right type and size of system for your property, ensure it’s installed correctly and set you up on a regular maintenance plan to prolong the life of your equipment. If you would like to know more, or you think your air conditioning system might need some attention, just get in touch today to book your free consultation.