
7 Warning Signs Your Heat Pump Is About to Stop Working
Think your heat pump is fine? These warning signs could prove costly fast. Catch them early and avoid getting stuck with no heating when it matters most.
RightAir Solutions is a company that specialises in commercial air conditioning services.
Air source heat pumps have become a cornerstone of low carbon home heating in the United Kingdom. As the demand for energy efficient and environmentally conscious heating solutions continues to rise, driven by government support and consumer interest, choosing the right air source heat pump manufacturer matters more than ever. This guide by RightAir Solutions compares the most trusted global and UK brands, explains key performance standards, and helps homeowners find the best heat pump system based on output, cost, efficiency and reliability.
Energy bills are rising and people across the UK are looking for alternatives to gas or oil heating. Air source heat pumps offer a more sustainable solution by using heat from the outside air to warm your home and provide hot water. They work even when the weather is cold and are a reliable choice for year round comfort.
Air to air heat pumps deliver warm air into rooms through fans, while air to water heat pumps work with radiators or underfloor heating systems. Most homes in the UK are suited to air to water models because they connect to traditional heating systems and use energy more efficiently.
Pro Tip: If your home has older radiators, upgrading them when switching to a heat pump can improve efficiency and comfort while ensuring your system operates at its best.
One of the biggest advantages of air source heat pumps is their efficiency. For every unit of electricity they use, they can produce between three and five units of heat. This means lower energy bills compared to conventional boilers. The most efficient models reach a Seasonal Coefficient of Performance rating of 5 or more, especially when paired with low temperature underfloor heating.
Unlike gas or oil boilers, heat pumps do not emit carbon dioxide at the point of use. Many models use refrigerants such as R32 and R290, which have a much lower impact on the environment. Choosing a system with these low GWP refrigerants supports the UK’s goal of cutting emissions and improving home energy performance.
In the UK, the Boiler Upgrade Scheme provides a grant of seven thousand five hundred pounds to help cover the cost of installing a heat pump. Homeowners need to meet basic insulation standards and have a valid Energy Performance Certificate. This funding can make a real difference in helping more households switch to renewable heating.
Modern systems are designed to work in a range of homes, including older buildings. Whether you have traditional radiators or a new build with underfloor heating, there is a setup that will match. Monobloc systems go entirely outside the home, while split units have an indoor component. Some systems are hybrid and can work alongside a boiler, making them suitable for gradual upgrades.
The market for heat pumps in the UK is growing quickly. More than two hundred and fifty thousand units have been installed so far and industry forecasts show that annual installations could exceed six hundred thousand by the end of the decade. The combination of rising energy costs and public funding is encouraging more households to switch.
Today’s heat pumps are more compact, quieter and better at working in colder temperatures than earlier models. They also include smart controls that help users manage heating through mobile apps and connected thermostats. Inverter technology is now standard in most systems, allowing the pump to adjust its output based on the heating demand in real time. This leads to improved seasonal efficiency and more consistent indoor comfort.
Major manufacturers from Japan, Germany and South Korea lead the market with proven designs and long experience. These include companies like Panasonic, Daikin and Mitsubishi. UK brands and suppliers are also growing and providing solutions tailored to local housing stock. Homeowners can benefit from international quality and local support from certified installers and maintenance providers.
Pro Tip: Check if your current EPC is still valid. An up-to-date certificate not only helps with grant applications but also highlights ways to improve your home’s insulation and heating performance.
Efficiency metrics such as SCOP, SEER and CoP
Ability to perform in low ambient temperatures
Length and terms of warranty
Local support and installer availability
Smart controls and integration with renewable energy sources like solar panels
Customer satisfaction scores and independent reviews
We’ll help you qualify and complete the paperwork for the Boiler Upgrade Scheme. Contact us for heat pump installation services.
Offers the Altherma range. Performs well in cold temperatures and works with hybrid and solar setups.
The Ecodan range is known for reliability, quiet operation, and ease of installation.
Aquarea models support R290 refrigerant and are compact, efficient and quiet.
Competitively priced, with strong SEER ratings and app integration.
aroTHERM and flexoTHERM systems are Quiet Mark certified and ideal for both hybrid and standalone use.
7000i AW series is known for design, reliability and straightforward installation.
Specialises in cold-climate systems like the F2040 and F2120. Delivers strong SCOP values.
Great for integration with solar thermal systems. Ideal for high performance new builds.
Affordable and compact. Ideal for flats and smaller homes.
Trusted brand now offering air to water systems designed for British homes.
Aerona3 R32 range is compact, MCS certified and suited for domestic installations.
EHS Mono and TDM systems integrate easily with smart home systems and solar panels.
Well known boiler manufacturer offering Compress hybrid systems and strong installer support.
Gaining market share with budget friendly, reliable heat pump units.
Advanced inverter technology and features like frost protection and energy management.
Nuos Plus and Primo ranges offer built in cylinders and smart efficiency modes.
High SEER ratings and built in AI features like weather prediction and auto scheduling.
Flexible designs that integrate with solar, hot water storage and home batteries.
Inverter compressors for responsive, efficient output
Low temperature operation to –25°C
Wi-Fi and app control
Noise reduction through acoustic insulation and fan redesign
Smart energy integration with solar and battery systems
Shortage of MCS certified installers
Confusion about property compatibility
Upfront costs despite long term savings
Delays in part supply or installer availability
MCS Certification required for grants
EPC Certificate must be up to date
Quiet Mark for low-noise operation
Building Regulations compliance
Warranty registration and servicing records needed for claims
Assess heating demand based on room size and insulation
Consider if you’ll need a hot water cylinder
Look at available outdoor space for the unit
Compare warranties, noise levels, and after sales support
Always work with an MCS certified installer
We are a trusted UK supplier of air source heat pumps from leading brands like Mitsubishi, Vaillant, Panasonic and Grant. We offer:
Free home surveys
Full grant assistance (BUS scheme)
MCS certified engineers
Aftercare and servicing
Smart system integration and controls
Customer support from a UK-based team
Heat pumps offer a sustainable, low carbon way to heat your home. With the Boiler Upgrade Scheme, you can access thousands in funding and enjoy lower bills, better comfort and long term value. Choosing the right installer and brand will ensure your system works reliably for years.
What is the lifespan of an air source heat pump?
15–20 years with maintenance.
Can it work during freezing temperatures?
Yes, modern units operate down to –25°C.
Will I need new radiators?
Possibly, especially for high temperature systems.
Is planning permission required?
Usually not unless your home is listed or in a conservation area.
Are heat pumps noisy?
No, most are designed to be very quiet and meet noise regulations.
7 Warning Signs Your Heat Pump Is About to Stop Working
Think your heat pump is fine? These warning signs could prove costly fast. Catch them early and avoid getting stuck with no heating when it matters most.
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RightAir Solutions
At RightAir Solutions, we provide air conditioning services to domestic and business customers for heating and cooling units. We also supply and fit commercial AC and HVAC services with our insured, qualified and experienced London team of air con engineers.