Viessmann Boiler Review

Viessmann is a premium German manufacturer known for cutting-edge technology and exceptional build quality. Their boilers are recognized for energy efficiency and innovative design. With over 100 years of heating experience, Viessmann offers some of the most reliable and technologically advanced boilers in the market.

4.7/5

Customer Satisfaction

£1,550.00

Average Price

1917

Established

Viessmann History

Viessmann combi boilers are engineered with state-of-the-art technology, prioritizing performance and longevity. A standout feature is the stainless steel Inox-Radial heat exchanger, a core component that ensures efficient heat transfer and exceptional durability. This heat exchanger is designed to withstand high temperatures and resist corrosion, which is critical for maintaining performance over time in diverse water conditions. The 10-year guarantee against corrosion underscores Viessmann’s confidence in the robustness of this component, offering homeowners peace of mind and reducing long-term maintenance costs. The use of high-tech solutions extends beyond the heat exchanger. Viessmann boilers often incorporate smart controls and modulating burners, which adjust the boiler’s output to match the heating and hot water demand. This results in improved energy efficiency, lower fuel consumption, and reduced carbon emissions, aligning with modern sustainability goals. Many models are compatible with smart thermostats and home automation systems, allowing users to control their heating remotely via smartphone apps, further optimizing energy use. Viessmann combi boilers are all wall-mounted, making them an ideal choice for homes with limited space, such as apartments or smaller houses. Their compact footprint allows for flexible installation in areas like kitchens, utility rooms, or even airing cupboards. Beyond functionality, Viessmann places emphasis on aesthetics, designing boilers with a sleek and modern appearance. The stylish, minimalist look ensures that the boiler blends seamlessly into contemporary home interiors, avoiding the bulky, industrial appearance of older boiler models.

Viessmann Technology Innovations

Vitodens Condensing Tech

Their Vitodens range features stainless-steel Inox-Radial heat exchangers for long service life.

Viessmann Pros and Cons

Advantages

  • High Efficiency

    Known for ultra-efficient condensing boilers that achieve up to 98% AFUE.

  • Ultra-High Efficiency

    Viessmann Vitodens boilers achieve up to 98% AFUE, minimising fuel costs.

  • Stainless-Steel Heat Exchanger

    The Inox-Radial heat exchanger resists corrosion for decades.

  • Low Emissions

    Meets the latest EcoDesign standards with ultra-low NOₓ output.

Disadvantages

  • Premium Price

    Typically carries a higher upfront cost compared to mid-market competitors.

  • Specialist Servicing

    Warranty requires servicing by a Viessmann-accredited engineer.

  • Complex Controls

    Full feature set can be overkill for small homes.

Frequently Asked Questions

Efficiency Rating

95.7%

Average Efficiency

Warranty

10.2

Average Years Coverage

Market Share

11.2%

UK Boiler Market

Service Network

75

UK Service Centers

Key Features

  • Highly rated for customer satisfaction
  • Industry-leading reliability scores
  • Long warranty periods of up to 11 years
  • Multiple boiler models to suit different property sizes and requirements
  • Top-ranked for energy efficiency

Brand Information

Country of Origin

Germany

Headquarters

Allendorf, Germany

Years in Business

108 years

Popular Viessmann Boiler Models

ModelTypeOutputEfficiencyPriceWarrantySmart Control
Vitodens 050Combi29 kW93.0%£9507 yearsDetails
Vitodens 100W Open VentRegular29 kW94.0%£1,00010 years-Details
Vitodens 200System32 kW98.0%£1,90012 yearsDetails

Prices shown are for the boiler only. Installation costs typically range from £500 to £1,500 depending on the complexity of your installation.

Product Categories

Combi Boilers

Premium combi boilers featuring innovative German engineering and exceptional build quality.

Stainless steel heat exchanger

up to 98% efficiency

Lambda Pro combustion control

Heat Pumps

Air and ground source heat pumps for renewable heating solutions.

Low carbon footprint

government incentive eligible

compatible with existing radiators

Recommended Installers

BOXT

4.8

National

Premium Partner

Hometree

4.6

Regional - England & Wales

Certified Partner

Why Choose Viessmann?

Performance Highlights

  • Excellent energy efficiency at 95.7%
  • Outstanding reliability rating of 4.8/5
  • Range of combi boilers with excellent flow rates
  • Customer satisfaction rating of 4.7/5

Support & Aftercare

  • Extended warranty periods averaging 10.2 years
  • 75 dedicated service centers across the UK
  • 2 approved installation partners
  • Germany engineering with UK support

Ready to Install a Viessmann Boiler?

Get competitive quotes from trusted installers in your area

Why get a new Viessmann boiler?

  • Save up to 30% on your heating bills with an efficient new boiler
  • Benefit from Viessmann's 11-year warranty coverage
  • All installers are Gas Safe registered for your peace of mind
  • Fixed price quotes with no hidden costs