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Vaillant Air Source Heat Pumps in the UK: The Complete Guide
- The average cost of Vaillant heat pumps in the UK is £4,000 and £15,000, depending on factors such as size and model of the heat pump.
- Vaillant heat pumps have received several positive reviews online and have a score of 3.8/5 on Trustpilot.
- The Vaillant heat pump product range includes the aroTHERM, aroTHERM Plus, aroTHERM Split (air source), and flexoTHERM (air/ground/water source).
Vaillant is a well-renowned heat pump manufacturer in the UK. They are known for cutting-edge heat pump technology, energy efficiency, and environmentally friendly solutions. Vaillant offers a range of air source and hybrid heat pumps that cater to various home sizes and needs.
Their innovative heat pumps are a perfect mix of sustainability and great performance. Products like aroTHERM Plus have an energy efficiency of A+++ and are great for operating in extreme weather (as low as -25°C). Vailliant offers customised solutions with additional features like quiet operation and smart controls while providing heat pumps for small homes or larger properties.
In this guide, we’ll explore the costs, reviews, and types of models to help you decide if Vaillant heat pumps are the right choice for your home.
The cost of heat pumps will be affected by potential extras and installation costs, which vary by installer. That’s why it’s best to compare several heating installers in your area. Instead of spending days on research and comparisons on your own, why not fill out our 30-second form and let us do the rest?
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Vaillant heat pump models
Vaillant offers a variety of heat pumps, from compact air-source systems to versatile hybrid and ground-source solutions. In the table below, we have provided you with an overview of all the Vaillant heat pump models:
| Model | Type | Capacity (kW) | Efficiency Rating | Sound Power (dB) | Max Heating Temp (°C) |
|---|---|---|---|---|---|
| aroTHERM | Air source | 3.5 - 12 | A+++ | 53–60 | 63 |
| aroTHERM Plus | Air-to-water hybrid | 3.5 - 12 | A++/A+++ | 55 | Up to 75 |
| aroTHERM Split | Air source | 3.5 - 12 | A++ | 53–61 | 62 |
| flexoTHERM Exclusive | Air/ground/water source | 14 - 46 | A++/A+++ | 41–50 | Up to 65 |
The Vaillant aroTHERM has high ratings and represents the line of air source heat pump models with output sizes ranging from 5 to 15kW. The Vaillant aroTHERM Plus version has an additional water tank attached to act as a hybrid or air to water source heat pump.
The aroTHERM Split is an advanced air-to-water heat pump designed for high efficiency, quiet operation, and flexible installation. The detached unit can be placed up to 15 metres away, making it suitable for residential properties, offering solutions for heating, cooling, and hot water.
The flexoTHERM Exclusive supports multiple energy sources, offering solutions for your larger homes or properties with more heating demands. It is a great option for a ground source heat pump and uses the air, groundwater, or the ground as a heat source. Just like water source heat pumps, it also works with water bodies.
It would be worth knowing that Vaillant has discontinued their geoTHERM heat pumps, and they will only be available in the reconditioned or second-hand market with no warranty. As Vaillant heat pumps are expensive, it is advised to get a model with an extensive warranty provided.
You can also check the Vaillant Advance Renewable Installer, as it is a loyalty and accreditation scheme designed to support and recognise qualified installers of Vaillant renewable energy products, such as heat pumps. By choosing this, you can ensure that your heat pump is installed by a qualified professional with access to exclusive benefits and support from Vaillant.
Vaillant heat pump cost in the UK
The average cost you are looking to spend on a new Vaillant heat pump is between £4,000 and £15,000 without installation. This depends on several factors, such as the heat pump model chosen, output capacity, and installation charges.
Here is a detailed breakdown of the costs associated with Vaillant heat pumps:
| Model | Type | Unit Price (incl. VAT) |
|---|---|---|
| aroTHERM Plus 3.5kW | Air source | £3,445 |
| aroTHERM Plus 7kW | Air source | £4,079 |
| aroTHERM Split 5kW | Air source | £3,976 |
| aroTHERM Split 10kW | Air source | £5,958 |
| flexoTHERM Exclusive 14kW | Ground/air/water source | £11,000+ |
Below we discuss the installation cost for air source heat pumps to give you a better idea of what your total air source heat pump cost might entail:
| Type of property | Duration | Average Installation Cost |
|---|---|---|
| 2 bedroom semi-detached | 2-3 days | £3,500 - £4,500 |
| 3 bedroom semi-detached | 3 days | £4,200 - £6,500 |
| 5 bedroom detached | 3-5 days | £6,000 or higher |
Maintenance costs
To ensure optimal performance and longevity:
- Annual servicing: Costs between £150–£300 for air source heat pumps and £200–£350 for ground source models.
- Service plans: Typically range from £10 to £25 per month, depending on the level of coverage.
The Boiler Upgrade Scheme (BUS) provides you with a heat pump grant towards installation costs, significantly reducing the upfront expense. This was launched in April 2022 and has been increased to £7,500 to enable homeowners money off heat pump installs in England & Wales. The increased support is available from 23rd October 2023 and is expected to run until 2028.
Want to get a Vaillant heat pump, but don’t know where to start? Avoid the hassle of spending days on research and comparisons on your own. Let us help you get heat pump quotes.
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Vaillant heat pump advantages & disadvantages
Vaillant heat pumps are very well-regarded in the UK market. Here, we show you some pros and cons of buying a Vaillant heat pump:
- Quiet operation: Many users have praised the aroTHERM series for its low-noise operation. It has also received the Quiet Mark certification, which ensures minimal disturbance.
- Energy efficient: Models like the aroTHERM Plus have A+++ ratings and high SCOP (Seasonal Coefficient of Performance) value up to 5.03, making them a great option for people who want lower energy bills.
- Government grants: Most houses in England and Wales can qualify for Boiler Upgrade Scheme, getting up to £7,500.
- Smart controls: The heat pumps have an app-based heating control system vSMARTᵀᴹ, allowing them to control their heat pump needs remotely and offering the option to manage your room temperature from anywhere.
- Hybrid performance: Vaillant offers a range of hybrid systems that combine an air source heat pump and boilers. This increases the energy efficiency and shelf-life by switching automatically between the boiler and the heat pump. This is especially helpful when outside temperatures are colder.
- Long lifespan: Vaillant heat pumps have been said to have lasted up to 25 years with proper maintenance and care. You can usually break even your cost spent on a heat pump in 16 years, hence saving you money in the long run.
- Reliable performance: User feedback tells us about consistent heating even in cold temperatures (down to -20°C), with a backup heater ensuring comfort for its users.
- Discontinued models: Vaillant heat pump models like geoTHERM are now only available in the second-hand market. This can significantly affect the warranty making it more costly in the long run.
- Installation issues: Some users on Reddit have reported issues during installation, such as communication errors or inexperienced technicians, which makes the process a little tougher for its users.
- Error codes: Many people have faced technical issues like communication failure (e.g., F.1206 and F.9998 errors), which is often related to faulty installation.
- High costs: Installing a heat pump system is more expensive than other heating systems. Vaillant Heat pumps can cost between £4,000 and £15,000 depending on the system type, property size, and project complexity.
To truly understand whether a heat pump is for you, we recommend asking a heat pump installer in the UK.
Vaillant heat pump reviews
Vaillant heat pumps have largely positive reviews across the UK receiving a 3.8/5 on Trustpilot. Users usually praise their products for their quiet operation volumes, energy efficiency, and reliability.
One user states:
“Had my aroTHERM heat pump for 6 years…Worked great and fantastic service from Vaillant would recommend.”
Vaillant has also received a special award from the Noise Abatement Society called the QuietMarkᵀᴹ accreditation. They were awarded this because they prioritise noise reduction within their boilers and heat pump design.
While the scores, awards, and positive reviews are indicative of the company’s success, it is good to note that there are some customer complaints.
One user says:
Dreadful trying to contact the right…I wanted to talk to someone about extending my Air Source Heat Pump warranty and the options you get on the phone do not provide any help. Even when I spoke to someone on they said it was not them and passed you on. Even emailing specific questions regarding best number and option on phone you get call the general number and no answer to your specific. I have spent hours on this – very very poor.
Regardless of the complaints and customer issues, Vaillant seems to value its reputation and doesn’t hesitate to step in to resolve any issues and disputes with customers regarding their Vaillant products. However, most recent reviews we found were generally favourable to Vaillant heat pumps.
Vaillant heat pumps per house size
Vaillant provides you with heat pumps for varying house sizes. In the table below, we explain what heat pump size is recommended for different houses and the estimated costs:
| Household Size | Min. Heat Pump Output Size | Estimated Supply Cost | Estimated Installation Cost | Estimated Total Cost |
|---|---|---|---|---|
| 1 bedroom | 8kW | £4,000 - £8,400 | £350 - £1,700 | £4,350 - £8,700 |
| 2-3 bedrooms | 12kW | £6,000 - £9,800 | £350 - £1,700 | £6,350 - £11,500 |
| 4+ bedrooms | 16kW | £8,000 - £12,350 | £350 - £1,700 | £8,350 - £14,050 |
For this reason, the Vaillant flexoTHERM is recommended for users with larger homes (4+ bedrooms), while the aroTHERM series is best for smaller homes (2-3 bedrooms) depending on your needs and exact output from the heat pump.
There are several other competitive brands in the market, like Hitachi, that provide cheaper pricing than Vaillant. But Vaillant offers a 7-year warranty period that Hitachi heat pumps fail to offer.
You should decide on the perfect heat pump for your house after considering all the factors like pricing, warranty, reviews and your house size.
How do Vaillant air source heat pumps compare to other brands?
Here, we compare how Vaillant heat pumps fare the market with its competitor brands like Daikin, Nibe, Panasonic, Samsung, Mitsubishi and LG. In the table below, we highlight key factors such as heat pump types, efficiency, price ranges, warranty, and unique selling points (USPs) to help you make an informed decision.
| Brand | Types of Heat Pump | Efficiency Rating | Output Sizes (kW) | Price Range (Incl. Installation) | Warranty | USP |
|---|---|---|---|---|---|---|
| Vaillant | Air to air, air to water, and ground source | A+++/A++ | 3.5 - 19kW | £4,000 - £15,000 | 2 - 7 years | Quiet operation and compact design |
| Daikin | Air to air and air to water | A+++/A++ | 2 - 16kW | £1,500 - £9,000 | 5 - 7 years | Advanced air purification and versatility |
| Nibe | Air to air, air to water, and ground source | A+++/A++ | 8 - 20kW | £3,800 - £10,000 | 7 years | High performance in extreme cold |
| Panasonic | Air to air and air to water | A+++/A++/A+ | 2 - 16kW | £3,000 - £15,000 | 3 - 7 years | Eco-friendly refrigerants and durability |
| Samsung | Air to air and air to water | A+++/A++/A+ | 9 - 16kW | £3,400 - £7,400 | 2 - 7 years | Affordable pricing with modern designs |
| Mitsubishi | Air to air and air to water | A+++ | 4 - 16kW | £6,000 - £12,000 | 3 - 5 years | Reliable in extreme climates |
| LG | Air to air and air to water | A+++ | 9 - 16kW | £6,000 - £12,000 | 5 - 7 years | Stylish designs and smart controls |
Vaillant usually offers tough competition in the heat pump market in terms of high efficiency, easy heat pump installation, lengthy warranties, and quieter operation. However, other brands, such as Samsung or Hitachi heat pumps, could also be worth considering in terms of high efficiency.
Should you get a Vaillant heat pump?
Vaillant heat pumps are a great choice for homeowners who are looking for a reliable, energy-efficient, quieter, and eco-friendly heating solution. They come with A+++ energy efficiency ratings and are often praised for their quiet operation and smart controls. While they may cost more than some other brands, they do come with a 7-year warranty which helps users save money in the long run.
They may also qualify for government heat pump grants like the Boiler Upgrade Scheme (BUS). This £7,500 grant can help you significantly reduce your final cost. Whether you’re looking to lower your energy bills or reduce your carbon footprint, Vaillant heat pumps are a worthy investment.
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