RightAir Solutions is a company that specialises in commercial air conditioning services.
Yes, modern air conditioning systems, especially those using reverse cycle or heat pump technology, can heat many UK homes effectively. Whether they are a full replacement for central heating depends on insulation levels, layout, and whether hot water needs are separately managed. This guide covers everything homeowners need to know before making the switch.
Energy prices are up. Boiler bans are approaching. Summers are hotter than they used to be. These changes are making many UK homeowners re-evaluate how they heat and cool their homes. Ofgem has flagged more competitive electricity tariffs, and schemes like the Boiler Upgrade Scheme are nudging households toward low carbon heating. At the same time, EPC ratings have become a bigger deal for both buyers and sellers. A single system that offers dual heating and cooling capabilities could be a smart way to future proof your property.
Gas costs have surged while electricity has remained more stable. Boiler ban targets are set for 2025 for landlords and 2035 for all other households. Climate change has made summers warmer, increasing the demand for air conditioning. As a result, many people are now asking the question: “Do I need two systems or can one do both jobs?”
Modern air conditioning units do more than cool a room. Many models now include reverse cycle technology, meaning they can switch modes and provide heat too. Air to air systems move heat from one place to another rather than creating it. Even when it is chilly outside, they can draw warmth from the air and push it indoors. When summer rolls around, the same system can cool your space.
The most common options include air to air heat pumps, which are good for heating individual rooms. Split systems allow for multi room zoning and control, while inverter models adjust their output to use less energy and maintain consistent temperatures. Trusted manufacturers like Mitsubishi Electric and Daikin make reliable systems that work well year round. The Energy Saving Trust and BRE also offer guidance on choosing an efficient setup for dual function climate control.
Pro Tip: Always check your EPC rating before switching to AC heating. It helps gauge whether your insulation will support efficient performance.
People often worry about whether air conditioning systems can keep up with a British winter. In most areas of the UK, high performance systems do just fine even when temperatures drop well below zero. The seasonal coefficient of performance tells you how efficient a unit is over time. If a system has a COP of three, it means it can produce three units of heat for every unit of electricity it uses.
Homes with good insulation will feel warmer for longer. The UK climate is fairly mild compared to colder countries, and backup heating like electric radiators can fill any gaps during cold snaps. At around five degrees Celsius, most heat pumps run efficiently with no issue. If the temperature drops to zero or below, you might need to top up with another heat source. Fortunately, UK winters rarely reach temperatures that strain these systems. Cold weather performance still depends on ambient temperature and your property’s thermal comfort range.
Electricity does cost more per unit than gas. But AC systems are more efficient, meaning they use less energy overall. This can lead to lower bills depending on how you use your heating. According to Ofgem and Which, air to air systems may save money long term especially in homes with solid insulation and sensible usage patterns.
A typical gas boiler costs around £900 to £1,200 per year to run, with an installation cost of £2,000 to £3,000. An AC system with a heat pump usually costs £700 to £1,000 annually, with installation costs ranging from £3,000 to £5,000. Gas boilers last between 10 to 15 years, while AC systems can last up to 20 years. Boilers need annual servicing and wear out faster. AC units usually just need filter cleaning and a system check. Some systems may qualify for government grants to help with setup costs. When comparing heating cycles and energy efficiency ratios, AC systems often prove more economical across a typical winter.
Not every home is right for switching to AC only heating. A few key features will either support or limit how well it performs. Homes with proper insulation throughout, including lofts and walls, are better suited. Layout matters too. Open plan spaces allow air to move more freely, while high ceilings and lots of separate rooms can work against efficiency. Your electrical system also needs to be modern enough to support the added load.
For example, a well renovated 1930s semi with double glazing and cavity wall insulation could be an excellent fit. By contrast, a draughty stone cottage with outdated wiring and limited airflow might struggle to get the same results.
Air conditioning systems do not usually provide domestic hot water. So if you get rid of your boiler, you will need a plan for baths, showers, and kitchen use. Some people choose to keep their boiler for hot water only. Others opt for an electric immersion heater with a tank. If you have the space and budget, an air to water heat pump is also an option.
Electric immersion heaters cost about £300 to £400 per year to run, depending on your tariff. Air to water systems are more expensive upfront but may qualify for grants. If your household has high hot water demand, especially with multiple bathrooms, tank size and recovery time will be important. Make sure to plan for your daily demand, water usage, and system compatibility needs including shower flow rate and tank recovery performance.
The process starts with a full survey by a qualified installer. They will help decide where to place indoor and outdoor units. Once agreed, the team will install pipework, cables, and drainage connections. The system is then tested and set up for use.
Unless your property is listed or in a conservation zone, you likely will not need planning permission. Installers like RightAir handle all F Gas certification and building control compliance. Most installations take two to five days. Expect some disruption, such as surface work and light noise, but homes usually return to normal quickly.
To keep your system running well, it helps to follow a few maintenance steps. Clean or replace filters monthly. Clear leaves and debris from outdoor units. Check your drains once a year to avoid clogs and blockages.
Pro Tip: Combining AC with an immersion heater or hybrid backup can give you year round comfort without overspending.
In some homes, a hybrid setup offers the best of both worlds. It keeps costs manageable and allows you to adapt over time. You can use AC units in your main living spaces while keeping a boiler for hot water or additional heat. Bathrooms often benefit from electric towel rails or radiators. Bedrooms can use wall mounted heaters or storage units for added comfort.
For example, your living room might use a split AC system for efficient zoned heating. In the bathroom, a towel rail could provide quick warmth. Bedrooms might rely on smaller electric heaters that only run as needed. This kind of flexibility is popular in larger or older homes and is often recommended by experts like Heat Geek and manufacturers such as Mitsubishi. Hybrid heating models offer the benefit of peak load coverage, supplementary heat, and seasonal hybridisation that adapts to daily needs.
Is your insulation good enough to retain heat?
Do you need a heating system that also provides hot water?
Are your living areas open plan or separated?
Can your electrical system support AC units?
What is the typical lowest winter temperature in your area?
Would you prefer zoned heating or whole house coverage?
Are there external restrictions on installations?
How long are you planning to stay in this property?
Are you eligible for grant funding or energy incentives?
Have you spoken to a certified installer for a home survey?
If you are unsure about any of these points, RightAir can help assess your setup and guide you through your options.
Some homes are ready for a complete switch to AC heating. Others might need a hybrid system or to keep their boiler. You are more likely to succeed if your home has good insulation, a layout that supports airflow, and a desire for year round climate control.
If your property has poor insulation, high hot water needs, or lots of small rooms, the system may struggle to perform well on its own. The best way to decide is by booking a home survey. An expert can give you a realistic view of what is possible and help you avoid costly mistakes.
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