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Viessmann Boiler Reviews, Prices and Pros + Cons (2025)
- Viessmann boilers range from £700 to £3,555 in the UK. The average cost is £1,580.
- The Viessmann Vitodens product range has combi, storage combi, system and conventional boilers, whilst the Vitotron range has electric boilers.
- Viessmann UK has a great customer reputation, with a Trustpilot rating of 4.4 out of 5.
Viessmann is a well-established German boiler manufacturer with over a century of experience in the heating and refrigeration systems industry. With branches in 74 countries, the company is known for manufacturing some of the most efficient boilers on the market, catering to a wide range of heating needs.
In this complete guide by GreenMatch, we’ll go over a Viessmann boiler review, including the types, prices, and pros and cons of its full product lineup.
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- Viessmann Boiler Reviews, Prices and Pros + Cons (2025)
- Viessmann boiler product line
- Viessmann boiler prices in 2025
- Viessmann boiler reviews: How are they rated?
- Advantages and disadvantages of Viessmann boilers
- How does Viessmann compare to other notable brands?
- Are Viessmann boilers good for your household?
- FAQ
Viessmann boiler product line
The Vitodens product line is Viessmann’s best-selling range of gas and LPG condensing boilers. This product line has combi, storage combi, system and conventional boiler options. The Vitotron line provides electric boilers.
| Product line | Fuel type | Types available | Energy efficiency | Warranty |
|---|---|---|---|---|
| Vitodens | Gas and LPG | Combi, system, conventional | 92% - 98% | 5 - 12 years |
| Vitotron | Electricity | System | 99.4% | 2 years (can be extended) |
Some common features of Viessmann boilers are as follows:
- All boilers have an energy efficiency rating of ‘A’. Viessmann is one of the few brands with boilers that have an energy efficiency of up to 98%.
- Patented stainless steel Inox-Radial heat exchanger with a warranty of 10 years. A good heat exchanger is vital for efficient heat transfer in the boiler system.
- Lambda Pro Control combustion controller for increased energy efficiency. This automatic feature lets the boiler adapt to different operating conditions and gas qualities.
- All boilers manufactured after 2024 are 100% hydrogen-ready with a conversion kit. This pilot project is under development in Germany currently.
- New models have Integrated WiFi for direct connection. Older models can be connected with the Vitoconnect WiFi module.
- ViCare app for remote operation, temperature control, and domestic hot water scheduling. Compatible with smart home technology.
- Quiet operation due to low-speed fans and highly efficient pumps.
- Compact design suitable for houses with limited space.
Viessmann boiler prices in 2025
A Viessmann boiler in the UK can cost around £1,580 on average, with installation costs of around £1,000 to £2,000. The total new boiler cost would be inclusive of the installation costs.
Viessmann combi boilers have a price range of £700 to £2,090. Storage combi boilers are a bit more expensive at around £2,130 to £3,555. The following table details the best combi boiler features and costs.
| Model | Outputs available | Fuel type | Efficiency | Warranty | Cost (supply only) | Suitable for |
|---|---|---|---|---|---|---|
| Vitodens 025-W | 24kW, 28kW | Gas | 92% - 98% | 5 years | £700 - £720 | Space-saving, for single-family homes |
| Vitodens 050-W | 25kW, 30kW, 35kW | Gas & LPG | 92% | 10 years | £1,060 - £1,290 | Compact, low weight, for smaller homes and flats |
| Vitodens 100-W | 19kW, 26kW, 30kW, 32kW, 35kW | Gas & LPG | 94% - 98% | 10 years (can be extended to 12) | £1,450 - £1,635 | Medium-sized houses, 2-4 bedrooms, 2 bathrooms |
| Vitodens 200-W | 25kW, 32kW | Gas & LPG | 94% - 98% | 7 years (can be extended to 10 - 12 years) | £1,835 - £2,090 | 4+ bedroom houses, compact dimensions |
| Vitodens 222-F (storage combi) |
19kW, 25kW, 32kW | Gas & LPG | 92% - 98% | 7 years (can be extended to 12 years) | £3,450 - £3,555 | 2-family houses |
| Vitodens 111-W (storage combi) |
25kW, 32kW | Gas & LPG | 92% - 98% | 10 years (can be extended to 12) | £2,130 - £2,295 | Medium-sized houses, 2-4 bedrooms, 2 bathrooms |
Costs are estimates based on our market research. Contact an installer for quotes now!
Viessmann system boilers cost around £1,090 - £2,105. System boilers are ideal for homes that have a high heating and hot water requirement, as they come with an additional hot water storage cylinder. The Vitotron 100 single phase models (230V) are suitable for small houses. Three phase models (400V) are ideal for medium-sized houses.
| Model | Outputs available | Fuel type | Efficiency | Warranty | Cost (supply only) | Suitable for |
|---|---|---|---|---|---|---|
| Vitodens 050-W | 19kW, 25kW | Gas & LPG | 92% | 10 years | £1,090 - £1,165 | Smaller houses and well-insulated properties |
| Vitodens 100-W | 11kW, 19kW, 25kW, 32kW | Gas & LPG | 94% | 12 years | £1,415 - £1,650 | Medium-sized- 2-4 bedrooms, 2 bathrooms |
| Vitodens 200-W | 11kW, 19kW, 25kW, 32kW | Gas & LPG | 94% - 98% | 7 - 12 years | £1,500 - £2,105 | 4+ bedrooms |
| Vitotron 100 | 4kW - 24kW | Electricity | 99.4% | 2 years | £1,230 - £1,285 | Houses off the gas grid. |
Costs are estimates based on our market research. Contact an installer for quotes now!
Viessmann has one option for a conventional boiler, the Vitodens 100-W, which can cost anywhere from £1,220 and £1,815.
| Model | Outputs available | Efficiency | Warranty | Cost (supply only) | Suitable for |
|---|---|---|---|---|---|
| Vitodens 100-W Heat Only | 11kW, 16kW, 19kW, 25kW, 32kW | 92% | 10 years (can be extended to 12) | £1,220 - £1,815 | Low weight, Small to medium-sized homes |
Costs are estimates based on our market research. Contact an installer for quotes now!
To figure out if your house requires a combi, system or conventional boiler, it’s recommended to get in touch with a professional who can tailor the best course of action for your needs. If you are worried about where to find reliable installers who are worth the money, GreenMatch can help.
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Viessmann boiler reviews: How are they rated?
Viessmann has a great Trustpilot rating of 4.4 and has some of the best boilers on the market right now. The Vitodens range was awarded the Which? Best Buy's status in 2021. Viessmann has won the award multiple times in previous years. The brand has been the recipient of the iF Design Award as well.
Viessmann UK has over 5,300 reviews on Trustpilot, with 75% 5-star ratings and 9% 1-star ratings. Most customers praised the professionalism of installation engineers and the timely customer service. Other customers raised concerns about the warranty coverage and questioned the reliability of the boilers.
Many reviews mentioned how the long warranty does not cover most malfunctions, such as debris collecting inside the boiler, problems with water pressure, and noise complaints.
Advantages and disadvantages of Viessmann boilers
Viessmann boilers come with a wealth of advantages that make your investment worthwhile. The main pros of Viessmann boilers are high energy efficiency and the wide range of options available. Here’s a summary of what perks you can expect:
- High energy efficiency: All Viessmann boilers are rated ‘A’ and above on the energy scale. The German engineering and intelligent controls (weather compensation and modulation range of 1:17) ensure that the boilers always function efficiently with minimal fuel waste.
- Wide range of models: Viessmann offers boilers in combi, storage combi, system and conventional types. Most boilers run on gas/LPG, and there is one option for electric boilers. The Vitodens 025-W and Vitodens 50-W are good options for small households. For medium-sized households, the Vitodens 100-W is a good choice. There are multiple options for large households, including the Vitodens 200-W, Vitodens 222-F, and Vitodens 111-W.
- Long warranty: The warranty offered by Viessmann is quite competitive, for most boilers it is 5 to 10 years. Extended parts warranties are available when the boilers are installed by accredited installers.
As with any investment, it’s also important to consider the potential pitfalls of Viessmann boilers, so that you can make an informed decision. Here’s a summary of the cons you may face:
- Expensive: Viessmann boilers’ price range is one of the highest on the market (£700-£3,555). The company justifies the high costs with high-quality materials (15-20 years lifespan) and advanced technology used in their boilers.
- Maintenance requirements: It is recommended to get the boiler serviced by a qualified heating engineer annually, which could cost anywhere from £65 to £300, depending on the boiler and fuel type. If there are black stains around the boiler, the flame changes to yellow from blue, or there is increased condensation in the room with the boiler, you should get a check done.
How does Viessmann compare to other notable brands?
When making a decision about which boiler brand to buy, it is important to consider important factors such as price, warranty, and customer rating. Here you can see how Viessmann fares compared to some other popular boiler brands in the UK.
| Feature | Viessmann | Biasi | Worcester Bosch | Alpha | Baxi |
|---|---|---|---|---|---|
| Price | £700 – £3,555 | £635 – £750 | £600 – £3,800 | £650 – £1,250 | £660 – £1,550 |
| Warranty | 2 to 12 years | 2 to 7 years | 10 to 12 years | 7 to 13 years | 2 to 10 years |
| Trustpilot rating | 4.4/5 | 3.5/5 | 4.6/5 | 4.7/5 | 4.6/5 |
Viessmann is on the higher end of the price spectrum compared to other popular boiler brands in the UK. It is important to note that the Viessmann product range includes the more expensive storage combis, which could slightly affect the price comparison.
Some figures may include alternative fuel and model options, which can affect direct price comparison. In addition to that, the brand’s Trustpilot rating is pretty decent, and the warranty is quite competitive too.
Are Viessmann boilers good for your household?
Viessmann boilers are considered to be among the best in terms of material quality, technology used, warranty and rating. There are options available for all kinds of heating and hot water needs. There is flexibility with the fuel type, too.
Viessmann can be a good choice for your house as the brand promises durability (15-20 years with proper maintenance) and high energy efficiency (92%-98%). However, keep in mind that the upfront costs can be more than other brands.
Have you made up your mind to get a brand new Viessmann boiler? To get the value for your money, you should compare quotes from multiple installers. Do not worry about spending hours of your free time emailing and calling installers on your own. Instead, use our simple and easy service to get up to 3 free and tailored quotes within 48 hours.
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- Viessmann Boiler Reviews, Prices and Pros + Cons (2025)
- Viessmann boiler product line
- Viessmann boiler prices in 2025
- Viessmann boiler reviews: How are they rated?
- Advantages and disadvantages of Viessmann boilers
- How does Viessmann compare to other notable brands?
- Are Viessmann boilers good for your household?
- FAQ
- Quotes from local engineers
- Payment by finance available
- Save up to £975