In just a few short months Minimum Energy Efficiency Standards (MEES) are going to become a requirement for all commercial buildings. This will mean that from the 1^st of April 2018 it will not be legal to rent out a property with an EPC (Energy Performance Certificate) rating of F or G.

EPC ratings were introduced in 2007 and are indicators of the energy performance of buildings but it is important to keep in mind that it is not a prediction of the running cost or long term efficiency. EPC is very similar to how MPG (Miles Per Gallon) is in relation to cars in that you can use it to compare one car directly with another but actual fuel usage will vary greatly depending on how the car is driven. So in the same way EPC is supposed to provide an easy comparison when buying or renting a property. EPC is essentially a theoretical rating and the actual performance of a building could be better or worse so MEES is unlikely to have an impact on efficiency. Most people are struggling to find a correlation between EPC ratings and the true performance of a building.

One of the other issues with EPC is that they are valid for 10 years which means a building certified as E at the start of 2008 could legitimately be rented using the same certificate in October 2017 for example. They can also be misleading to building owners and managers as they fall short in measuring the actual efficiency of the equipment in the building as it relys on information on seasonal efficiencies which is not always available in older buildings. Even up to date seasonal efficiencies may not be clear as system over 12kW are only going to be regulated by Eurovent as of 2018.

Unfortunately most buildings are really falling short in operational efficiency and EPC is not designed to be a reflection of this. Often it is found that things like the air conditioning are just left running flat out where simply changes like using the timer clock would instantly improve efficiency. It is vital for building owners to know how to operate their building’s efficiently and a good building user guide is important so there is advice on how to use the space in an efficient way. An example of this is to turn off the VRV system when it is 15^oC outside and maybe open the windows instead.

The road to improving operational efficiency is usually a relatively straight forward one but relationship between owner and occupier and what makes it more complicated. If the owner is the occupier then it is easy to implement changes but where there is a lease involved you often end up with a lot of dilapidated equipment that’s not running effectively. Yet a tenant will be reluctant to spend money on changes as they benefit the landlord more than themselves in the long term. If a tenant occupies an A rated space the actual performance similar to an E. Generally a landlord’s main priorities are the statutory elements like fire alarms and emergency lighting so energy efficiency tends to be at the bottom of the list. It is usually the case that better results are achieved when the occupant is responsible for the performance of the building and when someone makes decisions about how comfort levels are achieved efficiently it can result in better long term performance. For example at the Cundall offices in Birmingham they use the windows for ventilation where possible and they have also focused on task lighting over desks rather than general lighting which has energy used on lighting by almost two thirds.

There is a strong school of thought that believe unless the government is willing to incentivise improving energy efficiency little will change. In Australia they use a scheme called NABERS (National Australian Built Environment Rating Scheme) where an operational performance level is guaranteed at the design stage and must be delivered otherwise penalties can be applied. So if you are promised a 4-Star rated property as a tenant and it doesn’t deliver, you landlord will be liable for a rebate. In general Australian commercial properties operate at half the energy usage of comparable buildings in the UK even though they are using the same equipment in a much warmer climate.

Wellbeing is fast becoming an increasingly important measure of performance and building services equipment is being designed to be efficient whilst creating a comfortable working environment. We are continually moving towards a stage now where automated controls will deliver system performance based on occupant activities. Which can improve performance by around 33% by monitoring ambient temperature, internal humidity levels and exact load conditions and adapting accordingly which is much more comfortable for the occupants.

Whilst the drivers, techniques and technology are available to improve efficiency and comfort the problem is that old habits are difficult to shake and the industry isn’t moving forward. Often specifications are based of equipment which is 15 years old and completely out of date so it is hard to encourage clients to buy equipment with these capabilities. More training and education is vital for building performance to be improved. Specifications are still being put together without a true understanding of what is actually needed. Simple mistakes like badly placed sensors are common but important things to get right. Architects are also still making energy efficiency difficult by implementing design features like full height glass facades. Features like this will straight away push up emission rates which then have to be brought down through building services.

With only 5 months to go till MEES it may feel like a major challenge but it might not all be bad news. If your EPC is now 10 years old then having your building re-assessed may result in a better rating if improvements have been made since or if simply better information is available. Although the rating could also be worse as a result of the changes in calculation methods but at least having an up to date EPC rating removes uncertainty. The important thing is that you start thinking about your EPC now so that you can start to think about improvements straight away as they will take time to implement. It is also important to go beyond just doing what is necessary and aim for better now to improve long term efficiency and comfort.

Steps to take now

• Review your EPCs if they are older as they may have changed.

• Check your EPC assessor’s qualifications to ensure they can offer the best advise.

• Make sure to look at key areas such as lighting, boilers, VAV systems and air change rates.

• Any work can be planned as part of a general maintenance and refurbishment or a fit out so it doesn’t need to cost extra.

Important points to consider when choosing a light-commercial boiler.

There is a growing market for light commercial boilers in the world of gas heating as a domestic installers can operate up to 70kw without any additional qualifications. With so many boilers to choose from here are the most important things to consider when making the decision for Berkshire based business.

Energy Efficiency

First and most importantly is energy efficiency, whether it is to reduce bills or carbon emissions thanks to the Energy Labelling Directive [ErP] comparing energy efficiency is relatively straight forward. All space and combi heaters up to 70Kw are required to have an energy label rating between A++ and G and when used along with the energy-efficiency data they can help engineers work out the most efficient system for your needs. To ensure your boiler runs at maximum efficiency it must be the correct size for how much heat and hot water is required for the building so it is important to work out how much is needed from the outset.

Controls

Both on-board and ancillary controls can improve the overall efficiency and usability of a boiler. Some newer boilers even coming fitted with weather compensation controls allowing the boiler to regulate its output in relation the outside temperature. Zone controls are also ideal when different part of a building require different heating options.

Boiler Dimension

It is important to have your maximum dimensions to hand when choosing your new boiler and to know the pro and cons as to it’s location. Wall hung boilers tend to be more popular as they offer a more neat and tidy installation but often floor standing alternatives are required for older buildings which are listed or have unstable walls. The newer floor standing models also have a very small footprint and can fit into smaller spaces too. The weight can make a difference too as lighter models can be quicker and easier the engineer to install.

Cost

As boilers are often a rush purchase it is important to find the best deal for you and often a high efficiency light commercial boiler will meet your needs and budget.

Warranty

Comparing the lengths of various warranties will give you an idea of the quality of the product and an extended warranty shows the manufacturer has confidence in its product. It’s important to always read the small print to ensure that you don’t accidentally break the terms and conditions

What is R22 Refrigerant and Why You Must Act Now

If your home, shop, or business still relies on an older air conditioning or refrigeration system, there’s a good chance it runs on R22 refrigerant. While once a standard refrigerant in the UK, R22 has since been banned due to its harmful effects on the environment. In this guide, we’ll explain what R22 is, why it’s no longer legal, and what your options are if your system still depends on it. Dept. Environment Sheet RAC 8

What Is R22 Refrigerant?

R22—formally known as HCFC-22 (hydrochlorofluorocarbon-22)—is a chemical refrigerant that was widely used in air conditioning and refrigeration systems installed before 2010. It was once praised for its efficiency and safety profile compared to older refrigerants like R12. R22 works by absorbing heat from one area and releasing it in another, making it ideal for keeping spaces cool and comfortable.

Why Was R22 Refrigerant Phased Out?

Despite its practical benefits, R22 has a serious downside: it damages the ozone layer. As an HCFC, R22 contains chlorine atoms which, when released into the atmosphere, break down ozone molecules. The ozone layer is vital for shielding the Earth from harmful ultraviolet (UV) radiation. Its depletion has led to increased health risks such as skin cancer and eye damage, as well as negative effects on wildlife and ecosystems.

The global environmental community responded with the Montreal Protocol, an international treaty designed to phase out substances that harm the ozone layer—including R22 refrigerant.

---

Key Dates in the R22 Phase-Out (UK & EU)

• 2010: The sale of new R22 equipment was banned in the UK and across the European Union. However, recycled R22 could still be used for servicing.

• 2015: The use of all R22 refrigerant, including reclaimed or recycled refrigerant, was completely outlawed in the UK. Systems using R22 could still operate, but could no longer be legally serviced if refrigerant was needed.

• 2020 and Beyond: The global phase-out continues, with stricter environmental legislation and increased pressure to replace outdated systems.

---

How Do I Know If My System Uses R22?

If your air conditioning or refrigeration system was installed before 2010, it’s likely to contain R22 refrigerant. You can usually confirm this by checking the manufacturer’s label or rating plate on the outdoor unit. It may list the refrigerant type as:

• R22

• HCFC-22

• Chlorodifluoromethane

Still unsure? A professional engineer can inspect your system and confirm the refrigerant type.

---

What Happens If I Keep Using an R22 System?

Although operating an existing R22 system is not illegal, continuing to do so carries several significant risks:

1. Unserviceable Equipment

If your system develops a leak or refrigerant-related fault, it cannot be legally repaired using R22. This could leave your cooling system inoperable, especially during peak usage periods.

2. High Operating Costs

Older systems are often far less energy-efficient than modern alternatives. This means higher electricity bills and a larger carbon footprint.

3. Spare Parts Are Becoming Obsolete

Finding replacement components for ageing systems is becoming increasingly difficult and expensive.

4. Insurance and Compliance Risks

Depending on your building’s use (especially in commercial or public settings), continuing to operate an outdated system could put you at odds with insurance or regulatory standards.

---

What Are My Options?

Now that R22 is no longer legally supported, you’ll need to consider one of the following options:

Option 1: Do Nothing

You could continue using your existing system until it fails. However, this approach carries a serious risk. Once it breaks down, repairs involving refrigerant are not legally permitted, potentially leaving you without cooling for days or even weeks.

Option 2: Retrofit Your System

In some cases, older systems can be adapted to work with a modern refrigerant. This involves flushing the system, changing the oil, and replacing certain components like the expansion valve or compressor.

Advantages:

• Cheaper than full replacement

• Quicker turnaround

Disadvantages:

• Not all systems are compatible

• Energy efficiency may not improve significantly

• Still based on outdated technology

Option 3: Replace the System

The most future-proof and environmentally responsible option is to replace your old system entirely with a new one designed for modern refrigerants like R410A or R32.

Advantages:

• Up to 50% more energy-efficient

• Quieter and more reliable

• Better temperature control

• Fully compliant with current regulations

• Lower environmental impact

Though the upfront cost can be higher, long-term savings on energy bills and reduced maintenance often make this the most cost-effective solution.

---

Financial Benefits of Upgrading

• Energy Efficiency: Modern systems use less electricity to achieve better performance, which can lead to significant savings over time.

• Tax Relief and Incentives: Certain commercial systems may qualify for capital allowances or government-backed energy efficiency schemes.

• Increased Property Value: Upgrading your HVAC system can enhance your property’s appeal and future-proof your investment.

---

Legal and Environmental Responsibilities

Continuing to operate an R22 system doesn’t just pose operational risks—it also raises environmental concerns. Businesses especially have a responsibility to ensure their buildings meet environmental compliance standards. Non-compliance can affect reputation, customer trust, and even result in penalties.

If your system leaks, not only can it no longer be serviced legally, but the leak itself may be in breach of environmental regulations due to the emission of harmful gases.

---

Why Upgrade Now?

Waiting until your R22 system fails will only increase costs, downtime, and inconvenience. Replacing your system proactively:

• Gives you time to explore options

• Allows for a smooth, planned transition

• Reduces the risk of emergency breakdowns

• Lets you take advantage of seasonal promotions or government incentives

---

How We Can Help

At Air Intelligence, we understand that replacing an air conditioning or refrigeration system is a big decision. That’s why we offer:

• Free system assessments

• Clear, honest advice

• Tailored upgrade plans

• Professional installation

• Ongoing maintenance and support

We work with homeowners, retailers, restaurants, offices, and commercial sites across the UK to ensure their systems are modern, efficient, and regulation-compliant.

---

Conclusion

R22 might have served us well in the past, but its time is up. With the phase-out now fully in effect, the risks of relying on an R22 system—from legal restrictions to environmental damage and rising energy costs—are too great to ignore.

By upgrading to a modern system, you’re not only protecting your property—you’re also investing in efficiency, reliability, and sustainability.

Ready to future-proof your air conditioning?
Get in touch with Air Intelligence today to arrange your free consultation.