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Viessmann Heat Pumps: Reviews, Costs & Model Range (2025)
- Viessmann heat pumps cost between £7,000 and £9,000, including installation.
- Customer reviews show a high level of satisfaction with Viessmann heat pumps, with an average score of 4.4 out of 5, with 75% being 5-star reviews.
- Viessmann offers air to water and ground source heat pumps.
Choosing the right heat pump can feel overwhelming. You need a system that keeps your home warm, lowers energy bills, and works efficiently in the UK climate. Viessmann is a well-known brand, but is it the right choice for you? Are their heat pumps reliable? Do they justify the cost?
This guide breaks down Viessmann’s heat pump range, customer reviews, and pricing to help you choose the best heat pump for your home. Let’s dive in!
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Viessmann heat pump model range
Viessmann offers a wide range of heat pumps in the UK tailored to various heating and cooling needs. Below is an overview of their models:
| Model | Type | Heating Output (kW) | Key Features |
|---|---|---|---|
| Vitocal 150-A | Air source (Monobloc) | 2.1 – 14.9 | - Coefficient of performance (COP) of up to 5.0 - Patented Hydro AutoControl system® boosts efficiency - Compact design - Low operating costs |
| Vitocal 151-A | Air source (Monobloc) | 2.1 – 14.9 | - Integrated hot water storage - Efficient for heating and cooling - Space-saving |
| Vitocal 200-A | Air source (Monobloc) | 4.0 – 12.0 | - Quiet operation - Flexible installation - Smart home integration |
| Vitocal 222-A | Air source (Monobloc) | 3.8 – 11.6 | - Integrated DHW storage - Compact all-in-one unit - Suitable for new builds |
| Vitocal 300-G | Ground source | 4.3 – 10 | - High efficiency - Inverter-driven technology - Low running costs |
| Vitocal 350-G | Ground source | 20.5 – 42.3 | - Ideal for larger properties - High performance - Quiet operation |
| Vitocal 200-G | Ground source | 5.8 – 22.6 | - Small footprint, low noise - Ideal for detached homes |
| Vitocal 222-G | Ground source | 5.8 – 10.4 | - Integrated DHW storage - Compact and energy-efficient |
| Vitocal 200-A Pro | Air source | 32, 64, 128 | - Scalable for commercial use - Can be cascaded up to 1024 kW |
| Vitocal 250-A Pro | Air source | 39.5 | - Scalable for commercial use - Variable output adjustment - DHW can be produced using a cylinder loading system or pump |
Choosing the right Viessmann heat pump comes down to a few things—your heating needs, your budget, and how much space you have.
If you’re looking for something cheaper and easier to install, an air source heat pump is the way to go. If you have enough garden space and prefer a system with stable year-round performance, a ground source model is worth considering.
For smaller homes, you don’t need anything too powerful—something like the Vitocal 200-A should do the job. If you’ve got a big house with higher heating demand, you’ll want a stronger model, like the Vitocal 350-G.
Viessmann heat pump costs
The cost of a Viessmann heat pump depends on many factors, including the type of system, installation complexity, and efficiency.
Below is a breakdown of typical Viessmann heat pump prices, including the cost of installing a heat pump:
| Model | Unit Price (inc. VAT) | Estimated Installation Cost |
|---|---|---|
| Vitocal 150-A | £5,200 | £3,500–£6,000 |
| Vitocal 151-A | £8,000 | £3,500–£6,000 |
| Vitocal 200-A | £7,600 | £3,500–£6,000 |
| Vitocal 222-A | £8,800 | £3,500–£6,000 |
| Vitocal 300-G | £9,270 | £3,500–£6,000 |
| Vitocal 350-G | £10,000 | £3,500–£6,000 |
| Vitocal 200-G | £8,000 | £3,500–£6,000 |
| Vitocal 222-G | £7,000 | £3,500–£6,000 |
| Vitocal 200-A Pro | £30,000+ | Varies |
Larger homes need a more powerful system, which means higher upfront and installation costs. If your home isn’t quite ready for a heat pump—maybe your radiators need upgrading, or you need better insulation—the installation can also be more expensive.
The cost of an air source heat pump is usually lower than that of ground source models, which require underground pipework and more labour.
However, homeowners in the UK can reduce costs by applying for the air source heat pump grant in the UK, such as the Boiler Upgrade Scheme, which offers up to £7,500 towards installation. Taking advantage of these grants can make switching to a heat pump much more affordable.
If you get the £7,500 grant, an air source heat pump could pay for itself in about 7–12 years based on the energy savings you’ll see each year. Without the grant, it takes longer—more like 10–15 years or even more. So, if you’re thinking about making the switch, the grant definitely helps make it a quicker return on investment.
Keep in mind that, like any heating system, a heat pump needs regular servicing to keep it running efficiently.
Air source models typically cost £150–£300 per year to maintain, while ground source systems range from £200–£350 per year.
Viessmann heat pumps usually fall within this range because they’re built for efficiency and durability. Features like the Hydro AutoControl® system help reduce wear and tear. This keeps maintenance simple and predictable.
The total cost of a heat pump will be affected by potential extras and installation costs, which vary by installer. That’s why it’s best to compare several 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? We’ll find you up to 4 free heat pump quotes from trusted installers in your area.
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Viessmann heat pump pros and cons
Before you commit, it's worth weighing up the pros and cons to see if a Viessmann heat pump is the right fit for your home:
- Energy efficiency that pays off: Viessmann heat pumps are built for high efficiency, which means lower heating bills in the long run. They are often described as high-end or “Rolls Royce” of heat pumps.
- High flow temperatures: Some models, like the Vitocal 150-A, can produce flow temperatures of up to 70°C (160°F).
- Built to last: A solid heating system should work for years without fuss, and Viessmann heat pumps deliver with long lifespans and solid warranties.
- Smart controls: Whether you use a smart thermostat or a home automation system, many Viessmann models fit right in for better temperature control.
- Space-saving designs: Vitocal 150-A and 151-A require up to 60% less space than comparable heat pumps.
- Surprisingly quiet: Ground source models like the Vitocal 300-G and 350-G operate at up to 49 dB(A), so noise won’t be an issue.
- Choice between air and ground: Whether you prefer air source or ground source, Viessmann offers both, so it’s easier to find a system that works for your property.
- No need for a separate water tank: Some models, like the Vitocal 151-A and 222-G, come with built-in hot water storage, so you’re not stuck buying an extra tank, which is often necessary with other brands.
- Eco-friendly refrigerants: Viessmann heat pumps use low-GWP (global warming potential) refrigerants like R290 and R32.
- Not the cheapest option: Viessmann heat pumps aren’t the most budget-friendly. They cost more upfront compared to some other brands, but they’re also built to last, so it depends on how you look at it.
- Might need some home upgrades: If your home doesn’t have great insulation or uses older radiators, you’ll probably need to upgrade before installing one of these heat pumps. Not a dealbreaker, but definitely something to budget for.
- Depends on your heating setup: These heat pumps work best with bigger radiators or underfloor heating, so if your current system is smaller or outdated, you might not get the best performance without some changes.
- Not great in extreme cold: Airsource models lose efficiency in freezing temperatures, so if you live somewhere that gets really cold winters, you might need a backup heating system just in case.
- Needs a yearly check-up: Maintenance isn’t crazy expensive, but you should expect to pay around £150–£350 per year to keep it running smoothly. A bit of an extra cost, but better than dealing with breakdowns.
Viessmann heat pump reviews
Viessmann heat pumps receive high praise from homeowners for their efficiency, quiet operation, and ease of use. Here’s a summary of customer experiences based on Trustpilot reviews:
- Vitocal 151-A: Customers highlight the comfort and warmth provided by this model. One user was particularly impressed with the integrated hot water cylinder, ensuring a steady supply of hot water, and noted that the outdoor unit runs whisper-quiet. They called it one of the best air source heat pumps in the UK, especially for homes where noise is a concern.
- Vitocal heat pumps in general: One homeowner expressed love for their Viessmann heat pump, emphasising its modern design, user-friendly app, and energy efficiency. They reported cutting energy use by 75% while relying on a Green tariff, completely eliminating their carbon footprint from heating.
- Vitocal 150-A: Another user praised its silent operation, efficient performance, and app control features. Installed in a 1930s solid-wall bungalow, the heat pump has improved home comfort levels significantly.
The homeowner shared detailed energy savings, reporting that their gas bill was previously £68 for 11 days, while their current electricity bill for nearly a full month is only £41, even with an electric car being charged. They also noted that the heat pump operates at an impressive 450% efficiency, far surpassing the 80-90% efficiency of a conventional gas boiler.
Viessmann heat pumps per house size
Here’s a table showing which Viessmann heat pump model is best suited for different house sizes and the reasons why:
| House Size | Recommended Model | Why This Model |
|---|---|---|
| Small homes (1-2 bedrooms, flats, bungalows) | Vitocal 150-A | Compact, efficient, and quiet |
| Small to medium homes (2-3 bedrooms) | Vitocal 200-A | Good balance of power and efficiency |
| Medium homes (3-4 bedrooms) | Vitocal 151-A | Includes an integrated DHW cylinder, ideal for homes needing more hot water |
| Medium to large homes (4-5 bedrooms) | Vitocal 222-A | High-efficiency heating and built-in hot water storage |
| Large homes (5+ bedrooms, detached houses) | Vitocal 200-G | Ground source heat pump with higher efficiency for larger heating demands |
| Very large homes (luxury properties, multi-family houses) | Vitocal 350-G | Powerful ground-source option with exceptional efficiency |
| Commercial buildings & large-scale residential | Vitocal 200-A Pro | Scalable air source heat pump, ideal for high heating demand |
Smaller homes usually do best with compact air source models, like the Vitocal 200-A or 150-A, because they’re easier to install and take up less space.
Larger homes, especially those with high heating demands, might need a ground source system like the Vitocal 200-G or 350-G since they offer better efficiency in the long run, especially in colder weather.
If your household uses a lot of hot water—say, you have multiple bathrooms or a big family—you’ll want a model with integrated hot water storage, like the Vitocal 151-A or 222-A. That way, you always have plenty of hot water on demand without overloading the system.
Something else to keep in mind is how your home distributes heat. Heat pumps work best with underfloor heating, but if you have radiators, they might need upgrading to larger, low-temperature versions to keep everything running efficiently.
How do Viessmann heat pumps compare to other brands?
Let’s compare Viessmann with other leading heat pump manufacturers in the UK, focusing on key aspects to assist your decision-making process:
| Brand | Viessmann | Daikin | Nibe | Vaillant | Panasonic | Mitsubishi | Samsung | LG |
|---|---|---|---|---|---|---|---|---|
| Price | £5,000 – £10,000 | £3,900 – £11,800 | £3,600 – £16,500 | £3,100 – £8,700 | £2,870 – £7,300 | £1,100 – £8,600 | £1,700 – £3,200 | £3,300 – £6,400 |
| Types | Air to water, ground to water | Air to air, air to water, ground source | Air to water, ground to water | Air to water, ground to water | Air to air, air to water | Air to air, air to water | Air to water | Air to air, air to water |
| Efficiency (COP) | Up to 5.0 | Up to 5.2 | Up to 5.0 | Up to 5.2 | Up to 5.28 | Up to 4.9 | Up to 5.0 | Up to 5.19 |
| Average Reviews Score | 4.4 | 4.2 | 4.0 | 3.9 | 1.3 | 4.3 | 1.3 | 1.2 |
| Warranty | 2 – 5 years | 12 years | 2–7 years | 7 years | 3–7 years | 12 years | 3–5 years | 5–7 years |
The comparison shows that Viessmann and Vaillant heat pumps stand out for their outstanding performance and well-engineered design. Viessmann provides efficient, environmentally friendly refrigerants and robust build quality, whereas Vaillant is recognised for its high flow temperatures (up to 75°C).
If you're ready to dig deeper into the comparison of prominent installers, here's a quick rundown of the essential benefits of the most popular brands in the UK:
- Viessmann heat pumps are highly rated by customers for their reliability and ease of use. While their efficiency and noise levels are similar to other brands, they offer great smart home integration and use eco-friendly refrigerants like R290 and R32.
- Vaillant air source heat pumps stand out for their low-noise technology and high flow temperatures. The aroTHERM series provides a balance of performance and energy savings.
- Daikin heat pumps are recognised for their advanced inverter technology, which ensures steady temperature control and efficiency, even in colder climates. The Altherma range is one of the most widely used in Europe.
- Nibe air source heat pump models are designed for long-term efficiency, particularly in cold-weather conditions. Their systems have high seasonal performance ratings, making them ideal for consistent year-round heating.
- LG heat pumps focus on energy efficiency, quiet operation, and flexible installation. The Therma V series offers smart control features and works well in a variety of home settings.
- Mitsubishi air source heat pump systems, particularly the Ecodan range, are built for UK homes, offering reliable heating, low noise levels, and ease of installation.
- Panasonic air source heat pump models, like the Aquarea series, are known for their high efficiency and compatibility with existing radiator systems. They are a good choice for retrofitting older homes.
- Samsung air source heat pump systems prioritise compact design and ultra-quiet performance. Their Eco Heating System (EHS) Monobloc is one of the quietest heat pumps available.
- Calorex heat pump solutions specialise in swimming pools and commercial applications.
- Hitachi air source heat pump models, such as the Yutaki series, offer a balance of efficiency, compact design, and energy savings. They are suitable for both small and large residential properties.
- Worcester air source heat pump systems focus on efficient home heating with easy integration into existing setups. As part of Bosch, they benefit from a reputation for durability and reliability.
Is a Viessmann heat pump the right choice for your home?
If you’re thinking about getting a heat pump, Viessmann is a solid choice. Their models are efficient, reliable, and built to last, making them a great option if you want to cut energy bills and switch to a greener heating system.
That said, the installation matters just as much as the heat pump itself. A properly installed system will run smoothly, keep your home warm, and save you money in the long run.
That’s why it’s worth getting multiple quotes—you’ll find the best price and make sure you’re working with experienced ground source or air source heat pump installers.
Comparing heat pump installers can take hours and be very stressful when done alone.
Fortunately, we can connect you with up to 4 approved installers near you for free! Just fill in our 30-second form, and we’ll do the rest.
Click below to begin!
- Quotes from local engineers
- Payment by finance available
- Save £7,500 with BUS grant
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