Data protection statement

We, in the Viessmann Group companies, take the protection of your personal data very seriously and adhere strictly to data protection regulations. Personal data is only recorded on our websites and when using our apps to the absolute minimum extent necessary. The data collected will never be sold or passed on to third parties for any other reason.

The statement below provides an overview of the type of data that is collected, the reason for its collection and how the company ensures its protection. It applies to all websites and apps under Viessmann's responsibility. Viessmann websites and apps may include links to the websites of other suppliers, but this data protection statement does not extend to such sites/apps.

Data processing by consulting our websites and using our apps

Viessmann automatically collects information which your browser or the app transmits to us, and saves it in our server log files. This information consists of:

• Browser type/version
• operating system used
• referring URL (page visited previously)
• host name of the computer accessing the site (IP address)
• time of the server enquiry.

Viessmann cannot use this data to identify specific individuals. This data is not combined with other data sources. The data is used only for internal statistical evaluation.

Cookies and use of analysis tools

For several functions, the websites use cookies. These are designed to make our website more user friendly, effective and secure. Cookies are small text files which are filed on your computer and saved by your browser. Most of the cookies we use are session cookies. These are deleted automatically after your visit. Cookies do not cause any damage to your computer and do not contain any viruses.

Viessmann also uses analytical tools for this purpose, e.g. Webtrends or AppSee. The data provided and used is collected and saved completely anonymously. This data may under certain circumstances also be saved outside Germany or the European Union.

You can prevent such data being transmitted via corresponding settings in your browser or app, or the executing operating system environment (iOS, Android), but this may lead to problems with retrieval or operation, or with the functionality of the offered content or service in some cases. puts small files (known as ‘cookies’) onto your computer to collect information about how you browse the site.

Cookies are used to:
• measure how you use the website so it can be updated and improved based on your needs
• remember the notifications you’ve seen so that we don’t show them to you again

VIESSMANN.CO.UK cookies aren’t used to identify you personally.

You’ll normally see a message on the site before we store a cookie on your computer.

How cookies are used on

Measuring website usage (Google Analytics)

We use Google Analytics software to collect information about how you use We do this to help make sure the site is meeting the needs of its users and to help us make improvements.

Google Analytics stores information about:

• the pages you visit on
• how long you spend on each page

• how you got to the site 

• what you click on while you’re visiting the site

We don’t collect or store your personal information (eg your name or address) so this information can’t be used to identify who you are.

We don’t allow Google to use or share our analytics data.

Google Analytics sets the following cookies:

Universal Analytics

Name                                 Purpose                                             Expires
_ga     This helps us count how many people visit by tracking if you’ve visited before     expires 2 years
_gat     Used to manage the rate at which page view requests are made     expires 10 minutes

Google Analytics

_utma Like _ga,     this lets us know if you’ve visited before, so we can count how many of our visitors are new to or to a certain page     expires 2 years
_utmb     This works with _utmc to calculate the average length of time you spend on     expires 30 minutes
_utmc     This works with _utmb to calculate when you close your browser when you close your browser
_utmz     This tells us how you reached (eg from another website or a search engine)

You can opt out of Google Analytics cookies.

Subject to you having provided us with your personal data

This website uses Google Analytics, a web analysis service provided by Google, Inc. ("Google"). Google Analytics uses so-called "cookies", text files that are stored on your computer that allow us to analyse your use of the website. As a rule, the cookie-generated data regarding your use of this website will be forwarded to a Google server in the USA and stored there. However, if IP anonymisation is enabled on this website, your IP address will be truncated by Google within the member states of the European Union or other parties to the agreement on the European Economic Area. Only in exceptional cases will the full IP address be transferred to a Google server in the USA, where it will be truncated. On behalf of the operator of this website, Google will use this information for the purpose of evaluating your use of the website, for compiling reports on website activity, and for providing other services regarding website activity and internet usage to the website operator. The IP address transferred by your browser as part of Google Analytics will not be merged with other Google data. You can change the appropriate settings of your browser to prevent cookies being stored. However, we must point out that doing so may mean that you can no longer use the full features of the website. Furthermore, you have the option of preventing the capture of data relating to your use of the website generated by cookies (incl. your IP address) by Google as well as their processing by Google, by downloading and installing the browser plug-in available via the following link (

You can find more detailed information on Google's Terms of Use and Privacy Policy at and at We must point out that Google Analytics has been extended to include the "anonymizeIp" function to ensure the anonymous collection of IP addresses (IP masking) on this site.

Webtrends Analytics

This website uses Webtrends Analytics, a web analysis service provided by Webtrends EMEA Acquisition Ltd. / Webtrends Inc., 851 SW 6th Ave., Suite 1600, Portland Oregon 97206 ("Webtrends"). Webtrends uses so-called "cookies", text files that are stored on your computer that allow us to analyse your use of the website. The Webtrends analysis tool uses these cookies to collect anonymous data on how our website is used. The information we collect helps us to adapt our website continuously to the needs of our visitors.

These cookies collect data in an anonymous form and provide information on such matters as how many times our site is accessed, which sites these visitors come from and which pages they have accessed. Further information can be found in the Webtrends privacy policy statement.


The web analysis service, Inspectlet, collects and stores data on this website. Pseudonyms are used to create usage profiles from this data. These profiles allow Viessmann Werke GmbH & Co to analyse visitor behaviour and are evaluated to improve the management of our internet offering. Cookies (small text files) can be used to do this.


Right to information, deletion

You have the right to be informed, at any time, about any data stored concerning yourself, as well as its origin, recipients and the purpose of storage. In addition, pursuant to the requirements of statutory regulations, there is a right to correct, block and delete personal data.

Security information

We endeavour to store the data locally on the page visitor's computer and allow the visitor to be recognised when returning to our site.
Disabling Google and Webtrends analysis tools You can prevent our analysis tools from collecting data by clicking on the button below. This sets an opt-out cookie which prevents the future collection of your data when visiting this website:

Disable analysis tools

Use and transfer of personal data

If you have provided us with personal data, we only use this to answer your queries, to process contracts concluded with you, for technical administration, for logging in and in the services provided on the respective web pages or apps. Personal data provided by other services or for other purposes may only be used subject to your consent. You may withdraw your consent at any time.

Your personal data is only passed on to third parties or otherwise transferred if this is required to process the contract (especially transferring order details to suppliers), for invoicing purposes, or if you have previously given your consent. You have the right to revoke your consent at any time.

Saved personal data is deleted if you withdraw your consent to its storage, if the information is no longer required in order to fulfil the purpose intended by its storage, or if its storage is not permissible for other legal reasons.


In addition, this website uses the web analytics service Optimizely of Optimizely Inc., which is used for A / B and Multivariate tests. This service uses cookies to identify the browser of a visitor and to analyze the use of this website. The cookies do not collect personal data. For more information on how Optimizely processes your data, see

You can disable the Optimizely tracking at any time by following the instructions on

Further information

Your trust is important to us. We are therefore keen to be accountable to you at any time regarding the handling of your personal data. If you have any questions which have not been answered by this data protection statement, or if you would like further information about any particular point, please contact us at:

Schmack Biogas GmbH
Bayernwerk 8
D-92421 Schwandorf, Germany
Tel: +49 (0)9431 751-180
Fax: +49 (0)9431 751-240