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Save money with power and heat from free solar energy

At Viessmann, we are committed to developing innovative technology with the future in mind, which is why we design our products with a view to supporting and encouraging the use of sustainable, renewable energy sources. This means that all of our boilers can be complemented with free, natural energy from your home’s solar panels, helping your house to become more environmentally friendly and reducing fuel bills by harnessing the power of the sun.

Viessmann solar thermal heating systems offer the highest levels of efficiency, reliability and durability. Compatible with our other heating solutions, our solar heating systems offer you everything you need to make your new home as green and future-proof as possible.

Solar thermal heating systems

Solar water heating systems take advantage of the free heat supplied by the sun to warm domestic hot water (DHW). These solutions provide DHW throughout the year, and they can be supported by boilers or immersion heaters to ensure you have hot water whenever you need it.

If you are planning to replace your existing boiler and already have solar panels on your home, many of our products are designed to support the use of energy from these panels to supplement your heating with a completely natural, green energy source. We also offer a range of solar collectors, and if you are investing in a new heating system, we advise you to consider designing it from the outset to incorporate these collectors. We provide evacuated tube and flat plate collector systems, both of which can be mounted on your roof.

Taking advantage of this renewable energy technology will help you to lower your consumption of mains energy, which in turn will reduce your fuel bills and cut your carbon footprint.

Viessmann Vitodens, Gas Boiler range

Which heating system is the best for you?

Solar thermal product types

Flat-plate collectors

Saving up to 60 per cent of the energy required for DHW heating each year, our solar flat-plate collectors are powerful and efficient.

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Tube collectors

Featuring a highly selective coating, our tube collectors absorb a huge amount of solar energy to ensure impressive levels of efficiency all year round, even when the weather is colder.

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The Vitosol Family

The Viessmann Vitosol range of tube and flat-plate collectors includes the ideal solution for any home. We’re bound to have a solar hot water system to suit you.

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Design & Technology

Our Vitosol advanced flat-plate and tube collectors are designed and made to impress. This doesn’t just apply to their high operational reliability and long service life, but also their attractive appearance. These advanced solar water heating systems feature corrosion and UV resistant collectors that are built to withstand the elements. They also benefit from unique technologies that ensure maximum efficiently and safety, along with a consistently high thermal output.

At Viessmann, we draw on three decades of experience in designing and making solar collectors and are proud to have our solar thermal solutions verified by quality testing as per EN 12975 or ISO 9801.

Our solutions are also created to seamlessly integrate with our range of heating and hot water products. This enables you to optimise your cost savings and environmental benefits with ease.

Droplet of water, falling from a tap

Solar water heating systems

Viessmann solar heating works by using solar collectors on the roof of your home. The solar collectors absorb heat from the sun and use it to warm up water, which is then stored in a hot water cylinder.

These systems can either work independently, depending on how much sunlight there is, or in conjunction with our range of boilers or an immersion heater. 

By installing a solar powered water heating system along with a Viessmann condensing boiler, you will be able to utilise the free heat from the sun to warm your domestic hot water while at the same time ensuring you benefit from a reliable, year-round source of DHW.

As well as saving you money on your monthly energy bills, installing solar collectors on your property will help you to lower your CO2 emissions and demonstrate your commitment to protecting the environment.

Viessmann solar thermal technology

You can have full confidence in our technical expertise. All of our products are manufactured in Germany to exceptional standards, giving them a reputation for performance, longevity and reliability. Whether you choose a new gas or oil condensing boiler, a heat pump or a heating system for wood, all of our solutions can be used in conjunction with solar technology.

The potential savings from solar thermal systems

Electricity

Fuel cost / kWh: £0.167

Boiler efficiency: 100%

Annual savings* : £267

Gas

Fuel cost / kWh: £0.47

Boiler efficiency: 90%

Annual savings* : £84

LPG

Fuel cost / kWh: £0.057

Boiler efficiency: 90%

Annual savings* : £101

Oil

Fuel cost / kWh: £0.042

Boiler efficiency: 90%

Annual savings* : £75

*These potential savings are given only as a guide 
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Our most popular solar thermal products

Vitosol 100-FM
Vitosol 100-FM
A high performance flat-plate collector 

An excellent addition to any heating system, our Vitosol 100-FM solar collectors are both powerful and attractive. They can be matched to any energy demand.

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  • Ideal for
    Detached
  • Suitable for
    Flat roofs
  • Ideal for
    DHW
  • Central heating
    Backup
Discover the Vitosol 100-FM

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