Best OverallMost EfficientBest for Cooler ClimatesBest Value for MoneyMost PowerfulBest for QuietnessBest for DurabilityBest for Larger HomesBest for Smaller HomesHow we Selected the Best Heat PumpsKey Considerations when Selecting an Air Source Heat PumpLeading Brands in the Heat Pump IndustryRelated ReadingBest Air Source Heat Pumps FAQs
Best OverallMost EfficientBest for Cooler ClimatesBest Value for MoneyMost PowerfulBest for QuietnessBest for DurabilityBest for Larger HomesBest for Smaller HomesHow we Selected the Best Heat PumpsKey Considerations when Selecting an Air Source Heat PumpLeading Brands in the Heat Pump IndustryRelated ReadingBest Air Source Heat Pumps FAQs
Choosing the right heat pump for your home can be a daunting task given the many excellent options available.
In this article, we have looked at key factors that homeowners typically prioritise when looking to buy a heat pump, such as energy efficiency, cost-effectiveness and overall performance.
Our extensive research then allowed us to identify heat pumps that not only best meet each factor but also excel in delivering reliable heating solutions.
We hope this guide will assist you in finding the best heat pump to suit your requirements, ensuring comfort and efficiency in your living space.
For ease, here are the best air source heat pumps based on key factors:
| Heat Pump | Best In |
|---|---|
| Vaillant aroTHERM Plus | Best Overall |
| Viessmann Vitocal | Most Efficient |
| Daikin Altherma 3H HT | Best for Cooler Climates |
| LG THERMA V R32 Monobloc S | Best Value for Money |
| Vaillant flexoTHERM 400v 19kW | Most Powerful |
| Samsung EHS Mono HT Quiet | Best for Quietness |
| MasterTherm UK BoxAir Inverter | Best for Durability |
| Grant Aerona³ R32 17kW | Best for Larger Homes |
| Midea M-Thermal R32 | Best for Smaller Homes |
Specifications:
Why we choose the Vaillant aroTHERM Plus as best overall?
We selected the Vaillant aroTHERM Plus as the best overall heat pump due to its exceptional combination of performance, efficiency and eco-friendliness.
This versatile system boasts a high Seasonal Coefficient of Performance (SCOP) of up to 5.03 which ensures significant energy savings compared to traditional heating methods. The aroTHERM Plus can also achieve flow temperatures of up to 75°C, making it suitable for both underfloor heating and conventional radiators, as well as providing ample hot water for domestic use.
Its use of the natural refrigerant R290, with an impressively low Global Warming Potential (GWP) of 3, demonstrates Vaillant's commitment to sustainability. Also, the heat pump's quiet operation, with sound power levels as low as 54 dB(A), makes it ideal for various residential settings, including densely populated areas.
Specifications:
Why we chose the Viessmann Vitocal as most efficient?
It says it in the name - we chose the Viessmann Vitocal due to its exceptional efficiency. With an impressive A+++ ErP efficiency rating and a high SCOP, the Vitocal delivers outstanding energy performance which ensures significant cost savings on energy bills.
As an air source heat pump, the Vitocal efficiently extracts renewable energy from the ambient air which allows it to provide heating and hot water without relying on fossil fuels. With its quiet operation and compact design, the Viessmann Vitocal not only meets high efficiency standards but also seamlessly integrates into modern living spaces, making it a top choice for homeowners seeking both performance and environmental responsibility.
Specifications:
Why we chose the Daikin Altherma 3H HT as best for cooler climates?
The Daikin Altherma 3H HT stands out as the top choice for cooler climates due to its exceptional performance in harsh weather conditions. This high-temperature heat pump can deliver a leaving water temperature of up to 70°C at -15°C ambient temperature which makes it ideal for replacing traditional boilers in older homes with existing radiators. Its robust design allows it to operate efficiently even in temperatures as low as -28°C, ensuring reliable heating throughout the winter months
With its ability to provide heating, cooling and domestic hot water in one unit, the Altherma 3H HT offers a versatile and energy-efficient solution for homeowners in colder regions looking to upgrade their heating systems.
Specifications:
Why we chose the LG THERMA V R32 Monobloc S as best value for money?
The LG THERMA V R32 Monobloc S stands out as the best value for money in the heat pump market due to its impressive combination of performance and affordability. This air-source heat pump series boasts an A+++ energy efficiency rating for low-temperature applications which ensures significant energy savings for homeowners.
However, what truly sets this model apart is its competitive pricing, with the powerful 16kW version available for just over £4,000, making it considerably more affordable than many comparable models from other manufacturers. Coupled with LG's 7-year warranty plan for installations by trained professionals, the THERMA V R32 Monobloc S offers exceptional long-term value and peace of mind for homeowners looking to invest in efficient heating solutions.
Specifications:
Why we chose the Vaillant flexoTHERM 400v 19kW as most powerful?
The Vaillant flexoTHERM 400V 19kW stands out as the most powerful option in the air source heat pump market, making it an ideal choice for larger properties or buildings with high heating demands. With its impressive peak power output of 19kW, this model outperforms many competitors in terms of raw heating capacity.
Despite its power, the flexoTHERM 400V doesn't compromise on efficiency, delivering impressive performance while minimising energy consumption. Another key advantage is that it can rapidly heat water to 65°C which provides quick access to hot water when needed.
Specifications:
Why we chose the Samsung EHS Mono HT Quiet as best for quietness?
The Samsung EHS Mono HT Quiet stands out as the best choice for quietness in the heat pump market, making it ideal for noise-sensitive environments. This innovative system features a 4-step Quiet mode that allows it to operate at noise levels as low as 35 decibels which is comparable to a whisper or the ambient sound in a library.
Despite its quiet operation, the EHS Mono HT Quiet doesn't sacrifice efficiency or power, capable of delivering hot water temperatures up to 70°C. This combination of whisper-quiet operation and high performance makes the Samsung EHS Mono HT Quiet an excellent choice for those prioritising a peaceful living environment.
Specifications:
Why we chose the MasterTherm UK BoxAir Inverter as best for durability?
The MasterTherm UK BoxAir Inverter stands out as the best choice for durability in the heat pump market as it offers exceptional longevity and reliability. This robust unit is constructed from high-quality materials including an all-aluminum cabinet that resists weathering and corrosion over the long term.
This design makes it particularly suitable for coastal areas where it's specially coated to protect against sea air oxidation. The BoxAir Inverter's durability is further evidenced by its impressive 7-year warranty which exceeds the industry standard and demonstrates the manufacturer's confidence in the product's long-term performance.
Specifications:
Why we chose the Grant Aerona³ R32 17kW as best for larger homes?
The Grant Aerona³ R32 17kW stands out as the best choice for larger homes due to its impressive power output and exceptional efficiency. With a substantial 17kW capacity, this air source heat pump is capable of meeting the significant heating demands of spacious properties.
Despite its power, the unit doesn't compromise on efficiency, boasting a Seasonal Coefficient of Performance (SCOP) of 4.54, which could translate to substantial energy savings for homeowners. With its robust construction, quiet operation and a generous seven-year warranty, this heat pump offers a dependable and efficient heating solution for larger homes seeking to reduce their carbon footprint and energy costs.
Specifications:
Why we chose the Midea M-Thermal R32 as best for smaller homes?
The Midea M-Thermal R32 is an excellent choice for smaller homes due to its compact design and efficient performance tailored for limited spaces. It provides sufficient heating and hot water for modest-sized residences without overwhelming them. The unit's all-in-one configuration simplifies installation which eliminates the need for extensive piping and reduces the footprint required for setup.
Also, the M-Thermal R32 operates quietly, making it ideal for environments where noise levels need to be kept to a minimum, such as flats. Its use of the eco-friendly R32 refrigerant also highlights its commitment to sustainability while ensuring effective heating even in cooler temperatures. This combination of efficiency, compactness and low noise levels makes the Midea M-Thermal R32 the best option for smaller homes seeking a reliable heating solution.
Our selection process for the best heat pumps was thorough and methodical as we aimed to provide homeowners with reliable and tailored recommendations. We first determined the key factors that homeowners typically prioritise when looking to buy a heat pump and then conducted extensive research to match a heat pump to each factor.
When conducting the research, we also made sure that each heat pump that made our list was of top quality and performance. Here are some of the specific and overarching factors we considered in our evaluation:
Energy efficiency: We examined SCOP and Seasonal Energy Efficiency Ratio (SEER) ratings to identify heat pumps that offer the best energy savings and lower operating costs.
Noise levels: We assessed decibel ratings and noise reduction technologies to find the more quieter heat pumps suitable for noise-sensitive environments.
Installation and maintenance: We considered the ease of installation and ongoing maintenance requirements, favouring models that offer simplified processes and lower long-term costs.
Durability and warranty: We looked at build quality, materials used and warranty terms to identify heat pumps that offer the best longevity and manufacturer support.
Power output and capacity: We evaluated heat pumps across various capacities to find suitable options for different home sizes and heating demands.
Cost and value for money: We analysed both upfront costs and long-term savings to determine which heat pumps offer the best overall value.
Environmental impact: We prioritised heat pumps using eco-friendly refrigerants and those with lower carbon footprints.
Brand reputation and customer support: We considered manufacturer reputation, customer reviews and after-sales support to ensure reliable recommendations.
Technological features: We examined additional features such as smart controls, weather compensation and compatibility with renewable energy systems.
By meticulously evaluating these factors, we were able to match specific heat pump models to the priorities most important to different homeowners, ensuring our recommendations cater to a wide range of needs and preferences.
When choosing a heat pump for your home, several crucial factors should be taken into account to ensure you select the most suitable and efficient system for your needs:
The size of your home and its insulation quality are primary factors in determining the appropriate heat pump capacity. Larger homes or those with poor insulation will require more powerful units to maintain comfortable temperatures.
Your local climate plays a significant role in heat pump selection. For cooler regions, you'll need a system capable of operating efficiently at lower temperatures, such as the Daikin Altherma 3H HT which can function effectively even at -28°C.
Look for heat pumps with high efficiency ratings, such as SCOP or SEER. Higher ratings indicate better energy efficiency and lower operating costs.
If noise is a concern, consider models designed for quiet operation, like the Samsung EHS Mono HT Quiet, which can operate at noise levels as low as 35 decibels.
Consider the ease of installation and ongoing maintenance requirements. Some models, like the LG THERMA V R32 Monobloc S, feature all-in-one outdoor units that simplify installation and reduce costs.
Look for heat pumps built to last, such as the MasterTherm UK BoxAir Inverter, which offers robust construction and a 7-year warranty.
Ensure the heat pump's power output matches your home's heating and cooling needs. For larger homes, models like the Grant Aerona³ R32 17kW offer substantial capacity.
While initial costs are important, consider the long-term value. Energy-efficient models may have higher upfront costs but could lead to more significant savings over time.
Choose heat pumps that use eco-friendly refrigerants, like R32, which has a lower Global Warming Potential.
The heat pump industry is dominated by several well-established brands known for their innovation, reliability and energy efficiency.
These companies have consistently delivered high-quality products and have earned reputations as leaders in the field. Here's an overview of some of the top brands in the heat pump industry:
Vaillant is a well-established and respected brand in the heating industry, known for their innovative and efficient heat pump solutions.
With over 140 years of experience in home comfort technologies, Vaillant has become a leading manufacturer of heat pumps in Europe. Their heat pump offerings are characterised by:
Daikin is a global leader in heat pump technology, renowned for its innovative and efficient heating and cooling solutions:
Viessmann is a well-established and respected brand in the heating industry, known for its innovative and efficient heat pump solutions. Here's an overview of Viessmann's position in the heat pump market:
Samsung is a prominent player in the heat pump market:
LG is a leading innovator in the heat pump market, particularly recognised for its THERMA V product line, which addresses the growing demand for energy-efficient and sustainable heating solutions:
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Learn MoreAn air source heat pump is a renewable heating system that extracts heat from the outside air and uses it to warm your home and provide hot water.
Air source heat pumps can extract heat from the air even when temperatures are as low as -15°C, though their efficiency may decrease in extremely cold conditions.
While air source heat pumps can work in most UK homes, they are most effective in well-insulated properties.
Yes, UK homeowners can access the Boiler Upgrade Scheme, which offers grants of up to £7,500 towards the cost of installing an air source heat pump.
Modern air source heat pumps are designed to operate quietly, with noise levels typically ranging from 40 to 60 decibels, which is comparable to a refrigerator or a normal conversation.
Yes, many air source heat pump models can be reversed to provide cooling in summer as well as heating in winter, offering year-round climate control.
In most cases, air source heat pumps are considered permitted developments in the UK and do not require planning permission, but it's always best to check with your local authority.
While it's possible to use existing radiators with an air source heat pump, they may need to be replaced with larger ones for optimal efficiency.
To get a quote for a heat pump installation, you can contact certified installers, such as Glow Green. We'll offer you personalised guidance and ensure you receive the best value for your installation needs.
