As a family-owned, multinational corporation, The Vaillant Group specializes in providing top-quality HVAC equipment, primarily boilers and heat pumps. They’ve been serving communities for over 141 years, providing energy-saving heating, cooling, and hot water solutions.
Based in Germany, Vaillant serves clients in many parts of the world. Their presence in more than 20 nations makes them the second-largest heating technology manufacturer in Europe. They are highly experienced and successful in offering solutions in the air conditioning and ventilation technology markets. Their products are manufactured primarily in Germany, Italy, Spain, France, Slovakia, Turkey, and China.
Vaillant is dedicated to providing customers with energy-efficient products. With a focus on sustainability, the company continues to grow in ways to develop heating and cooling solutions that are environmentally friendly. To that effect, they actively develop technology that is hybrid and based on renewable energy sources.
Vaillant Air Source Heat Pumps
As a highly regarded manufacturer of domestic heat pumps recognized for quality and reliability, Vaillant offers a variety of air source and ground source heat pumps to meet customers’ specific needs. They bring a wealth of experience to everything they do, and they’ve been developing and innovating heat pumps for decades.
Because Vaillant customers live in different regions and have diverse requirements, the company offers a collection of air source heat pump products to meet these unique needs. The following lists of pros and cons for each heat pump are meant to help customers make the best decision regarding which product to purchase. Use this guide to help you determine which model is ideal for your space, conditions, and goals.
AroTHERM Air-To-Water Heat Pump
The AroTHERM Air-To-Water Heat Pump is an air source heat pump offering power and efficiency in tandem. It's among the most popular of Vaillant's heating products and comes in multiple sizes to meet a range of needs. Homeowners can choose between 5, 8, 11 and 15kW models, and unit sizes as small as 834 x 970 mm to units as large as 1375 x 1103 mm. All products within this line come in a modern, metallic design that will seamlessly fit in with virtually any home aesthetic.
Units found in the AroTHERM Air-To-Water Heat Pump line-up are ErP A++ rated for both hot water and heating efficiency, as well as Certified by the Microgeneration Certification Scheme (MCS). They're whisper quiet, too, with a sound power level as low as 58 dBA.
Homeowners love the AroTHERM Air-To-Water Heat Pump for many reasons, including the following:
- Flexibility. The AroTHERM Air-To-Water Heat Pump is available in four different heat outputs and sizes, making it a great option for practically any household.
- Warranty. Like many Vaillant products, the AroTHERM Air-To-Water Heat Pump comes with a seven-year parts and labour warranty.
- Environmentally Conscious. As an ErP A++ rated and MCS Certified product, the AroTHERM Air-To-Water Heat Pump is extremely efficient and environmentally friendly.
While this product excels in many areas, there are some potential drawbacks to choosing the AroTHERM Air-To-Water Heat Pump, such as:
- Setup. The AroTHERM Air-To-Water Heat Pump has a detailed installation process that can sometimes take between three and five days.
- Cost. The AroTHERM Air-To-Water Heat Pump is a significant investment, and the installation process can add to the cost.
AroTHERM Hybrid Heat Pump
The AroTHERM Hybrid Heat Pump is an intelligent heating solution that combines the power of the AroTHERM air-to-water heat pump with the functionality of a traditional boiler. Through its unique triVAI technology, it's able to seamlessly switch between renewable and conventional heat sources to optimise efficiency and minimise running costs.
What really sets the AroTHERM Hybrid Heat Pump apart is its focus on convenience. With an intuitive design and weather compensating controls, this product offers a level of value unlike many other systems on the market. Simply install it and let pre-programmed intelligence take care of the rest.
There are many advantages to using the AroTHERM Hybrid Heat Pump, such as:
- Compatibility. The AroTHERM Hybrid Heat Pump is compatible with all sizes of AroTHERM heat pumps and virtually any type of boiler, including oil, gas, and liquid petroleum gas (LPG) systems.
- Energy Efficiency. This product has been recognised for high standards in renewable energy technologies by the Microgeneration Certification Scheme (MCS).
- Automated Controls. Thanks to its weather compensating controls and pre-programmed intelligence, the AroTHERM Hybrid Heat Pump is a very convenient heating solution.
Although it's an incredibly popular product, the AroTHERM Hybrid Heat Pump isn't without caveats. These include:
- Warranty. It's important to note that the AroTHERM Hybrid Heat Pump’s five-year warranty is slightly shorter than what other Vaillant products include.
- Complexity. The AroTHERM Hybrid Heat Pump is a complex product that requires expert installation. This means it can be costly to set up.
AroTHERM Split Air-To-Water Heat Pump
As a split system, the AroTHERM Split Air-To-Water Heat Pump is designed with two main modules: an indoor wall-mounted unit and an outdoor unit that can be installed up to 15m away from the property. Both are connected via refrigerant pipe work and come in five different sizes: 3.5, 5, 7, 10 and 12kW heat outputs for maximum flexibility. Models in the AroTHERM series are quiet, boasting sound power levels as low as 53 dBA.
The AroTHERM Split Air-To-Water Heat Pump can be installed with a VRC 700 control and a VR 920 gateway, which allow users to access their heating system via the Vaillant app and from the convenience of their phone. This is perfect for those who want to be able to monitor and adjust their heating remotely.
The AroTHERM Split Air-To-Water Heat Pump offers a number of advantages, such as:
- Flexibility. With five different sizes to choose from, the AroTHERM Split Air-To-Water Heat Pump is among Vaillant's most flexible heating solutions.
- Remote Access. Thanks to the option to install with a VRC 700 control and a VR 920 gateway, the AroTHERM Split Air-To-Water Heat Pump can be controlled remotely via the Vaillant app.
- Energy Efficiency. This heat pump is incredibly energy efficient, boasting an ErP rating of up to A+++.
There are some potential downsides to consider with the AroTHERM Split Air-To-Water Heat Pump, such as:
- Installation. Because it’s a split system, the AroTHERM Split Air-To-Water Heat Pump can be complex to install. Fully converting your home to the system can take anywhere between three and five days.
- Cost. The AroTHERM Split Air-To-Water Heat Pump is one of Vaillant's more expensive heating solutions.
AroSTOR Air-To-Water Heat Pump
An incredibly sustainable and efficient solution, the AroSTOR Air-To-Water Heat Pump is a great option for those looking for an environmentally friendly heating system. The AroSTOR doesn't use any fossil fuels. Instead, it relies on thermal energy to heat water that's been collected via an external air duct, or recycled hot air from within the room where it's installed. All that's needed to run the appliance is a small amount of electricity. The AroSTOR Air-To-Water Heat Pump is capable of high levels of performance and is able to deliver 60° cylinder temperatures without the need for a back-up heater.
The two models available in this line-up, AroSTOR 200 and 270 litre, are both compact and practical in size at diameters of 624 mm and 634 mm, respectively. They're made from stainless steel and are compatible with a range of 360° air duct accessories for flexible sitting options.
There are many reasons to opt for the AroSTOR Air-To-Water Heat Pump, such as:
- Planet Friendly. The AroSTOR Air-To-Water Heat Pump is easily one of Vaillant's most environmentally friendly models, with a COP of >3.19 and the highest possible ErP label of A+.
- Powerful. Thanks to its innovative use of R290 refrigerant, the AroSTOR Air-To-Water Heat Pump can deliver both environmental efficiency and heating power up to 70°C.
- Super Quiet. With advanced insulation and the thoughtful use of rubber in its compressor's design, the AroSTOR Air-To-Water Heat Pump offers incredibly quiet sound power levels.
There are a few potential drawbacks associated with the AroSTOR Air-To-Water Heat Pump to keep in mind, such as:
- Limited Warranty. Vaillant’s warranty on the AroSTOR Air-To-Water Heat Pump is limited to five years for the stainless steel tank and two years for all other parts.
- Ducting. While the AroSTOR Air-To-Water Heat Pump is designed to be installed with an external air duct, it's not included in the purchase and will need to be sourced separately.
AroTHERM Plus Air-To-Water Heat Pump
As a newer product in Vaillant's collection of air source heat pumps, the AroTHERM Plus Air-To-Water Heat Pump can be considered a step up from its counterparts in a number of ways.
In terms of power, it's available in outputs ranging between 3.5, 5, 7 and 12 kW and delivers an unprecedented flow temperature of up to 75°C. It's also incredibly environmentally friendly, using natural R290 refrigerant to achieve low GWP and high COPs. The AroTHERM Plus Air-To-Water Heat Pump is also unique in that it features a built-in domestic hot water cylinder, which means all your hot water needs can be provided for in a single, space-saving appliance.
And because it's so quiet, with an operating sound power as low as 54dBA, the AroTHERM Plus Air-To-Water Heat Pump is perfectly suited for both densely built up and single standing homes.
There are many reasons to choose the AroTHERM Plus Air-To-Water Heat Pump, such as:
- Incredible Power. With a flow temperature of up to 75°C and a minimum operating temperature of -25°C, the AroTHERM Plus Air-To-Water Heat Pump is one of the most powerful models on the market.
- Built-In Domestic Hot Water Cylinder. The AroTHERM Plus Air-To-Water Heat Pump features uniTOWER, an integrated 190 litre cylinder that can provide enough hot water to satisfy the needs of a family of five.
- Compatible. The AroTHERM Plus Air-To-Water Heat Pump is designed to work seamlessly with a number of Vaillant's other products, including the uniSTOR heat pump cylinders and buffer tanks.
While impressive in many ways, the AroTHERM Plus Air-To-Water Heat Pump does have a few potential drawbacks, such as:
- Cost. Thanks to its many features and powerful performance, the AroTHERM Plus Air-To-Water Heat Pump comes with a higher price tag than some of Vaillant's other models.
- Size. The AroTHERM Plus Air-To-Water Heat Pump is one of the larger models in Vaillant's line-up, with a standard width of 1,100 mm.
How Much Do Vaillant Heat Pumps Cost?
Different factors come into play when considering the cost of each heat pump. These factors include the effort required to install equipment at your location, what accessories are needed or desired, and of course, the specific model you select.
In general, you can expect your costs to range between £3,000 and £15,000 for purchasing a new Vaillant heat pump and having it installed at your location. Of course, you may wish to get a variety of quotes from certified, qualified heat pump installers in your area to achieve the right balance of great service and affordability.
You can check into specials and incentives within your region. For example, the UK offers incentives that can help bring down the cost of buying and installing a heat pump in your home, business, or public building. In the past, many customers benefited from The Renewable Heat Incentive (RHI). Currently other incentives are available, including the Clean Heat Grant. Find out what’s available in your area and how to apply.
Choosing The Best-Fit Vaillant Heat Pump for Your Needs
If you’re not sure which Vaillant heat pump model to select for your property, keep in mind the size and configuration of your space, as well as your goals. Here are several points to consider that can help you decide.
Your Heat Pump's Primary Purpose
What’s your main reason for getting a new heat pump? What does it need to accomplish? Whether you want your model to heat your home or do that while also heating your water, you can narrow down your selection once you’ve figured out what you expect your heat pump to do for you.
Consider Your Home's Size
Another factor to take into account is the size of your home. A larger home will need a more powerful heat pump to be effective, while a smaller home can get by with a less powerful model. If you're not sure what size heat pump you need, you can always consult with a professional to get some expert advice.
Take Into Account Unit Configuration
Another thing to consider is how your heat pump will be configured and installed. Some models are designed for ducted systems, while others are floor-mounted or wall-mounted. Ultimately, the best configuration for your home will depend on a variety of factors, including the size and layout of the property, as well as your personal preferences.
Consider The Cost Of Operating Your Heat Pump
You'll also need to think about the cost of operating your heat pump. Some models are more energy-efficient than others, so you'll want to pick a model that won't cost too much to run. You can get an estimate of a heat pump's operating costs from the manufacturer or from a professional heating and cooling contractor.
Consider The Climate You Live In
Another important factor to consider is the climate you live in. If you live in an area that frequently experiences extreme weather, you'll need a heat pump that's designed to withstand those conditions. Conversely, if you live in a milder climate, you can get by with a less rugged heat pump model.
Keep Design Preferences In Mind
Of course, you also need to consider your own personal design preferences when choosing a heat pump. Vaillant offers a variety of different models to choose from, so you're sure to find one that fits your style.
Take Installation Into Account
Think about the installation process when choosing a heat pump. Some models are easier to set up than others and will therefore be faster and less costly to have installed. Others may require more work to install, but these may offer additional features or benefits that make them worth the extra effort.
Consider Your Budget
Finally, you'll need to consider your budget when picking a heat pump. As we've already mentioned, Vaillant heat pumps can range in price considerably, so by setting a range of what you're willing to spend you'll be able to more easily find a model that fits both your needs and your budget.