Privacy Policy


The operators of these pages are highly committed to protecting your personal data. We treat your Personal Data as confidential and in accordance with the data protection legislation and this Privacy Policy.
Usually, our website can be used without having to provide any personal data. To the extent personal data (e.g. name, address or email addresses) is collected, this will be done, wherever possible, on a voluntary basis. No such data will be disclosed to any third parties, unless you have expressly agreed.
Please note that it can never be guaranteed that the data transfer on the Internet (e.g. when communicating by email) will be 100% secure. The data can never be protected completely against access by third parties.


Some of the webpages use so-called cookies. Cookies do not harm your computer in any way and do not contain any viruses. Cookies are used to improve the user friendliness, efficiency and security of our choice of products and services. Cookies are small text files which are placed on your computer and which are saved by your browser.
Most of the cookies that we use are so-called “session cookies”. They are automatically deleted after you have left our website. Other cookies will remain on your device until you delete them. Such cookies enable us to recognize your browser the next time you access the website.
You can configure your browser so that you will be informed when cookies are about to be placed and will be able to allow cookies to be placed only on a case-by-case basis, to disable cookies in certain cases or in general, and to delete cookies automatically upon closing of the browser. If cookies are disabled, the functionality of this website might be limited.

Server Log Files

The provider of the webpages will automatically collect and store information in so-called server log files which are automatically transmitted to us by your browser. This information is:

  • Browser type and browser version
  • Operating system used
  • Referrer URL
  • Host name of the accessing computer
  • Time of the server request

This data will not be attributable to certain persons. This data will not be merged with any other data sources. We reserve the right to verify this data subsequently if there are concrete indications regarding any illegal use.

Contact Form

When sending in requests via the contact form, your information from the contact form including the contact details provided by you will be stored for the purpose of processing your request and for follow-up questions, if any. We will not share this data with any third parties, unless you have given your consent.

Newsletter Information

If you want to receive the newsletter offered on the website, you will need to provide us with your email address and with information that allows us to verify that you are the owner of the provided email address and agree to receive the newsletter. No other data will be collected. We will use this data only for transmitting the requested information and will no share it with any third parties.
You can withdraw your consent to the storing of the data, the email address and its usage for transmitting the newsletter at any time, such as via the “Unsubscribe” link in the newsletter or directly via our website.

Heating Calculator

When using the HEATING CALCULATOR, personal data is only collected to the extent necessary and processed for the specific purpose. Personal data are such data by which you are personally identifiable or other data linked to them.

The collection, transmission, storage, processing and other use of personal data is also summarised in this data protection declaration under the term “processing”. Working on our behalf:

  • Viessmann Deutschland GmbH, Allendorf, for technical support in quotation preparation, sales purposes and marketing
  • VC/O GmbH for the operation of websites and apps as well as marketing
  • LokalLeads GmbH, Berlin, for the operation of backend systems

Contact details of those responsible in the sense of the GDPR:

Stützstr. 6
72172 Sulz am Neckar
Phone: +49 (0) 7454 75-195

Transfer to third countries

We and the processor process/transmit the data you provide to/at sites in Germany, the European Union and third countries (including the USA) that have an adequate level of data protection in accordance with Article 45 GDPR or offer suitable guarantees in accordance with Article 46 GDPR.

Scope of the data protection declaration

This data protection declaration applies exclusively to the HEATING CALCULATOR.

Principles of processing by the HEATING CALCULATOR

The data collected by the HEATING CALCULATOR or entered by you in connection with the use of the HEATING CALCULATOR will only be used for the purposes explained in this data protection declaration. Processing serves as the legal basis for the implementation of pre-contractual and contractual measures in accordance with Article 6 (1) (b) GDPR. You can revoke your data protection consent at any time with effect for the future. The declaration of consent can be revoked at any time by sending an e-mail to Alternatively, the revocation can be made in writing to the responsible body.

The stored personal data will be deleted if you revoke your consent to its storage, if the data is no longer required to fulfil the purpose for which it was stored, in particular if you reject the indicative offer of the heating calculator, or if its storage is inadmissible for other legal reasons. As far as a legal storage period requires it, data will not be deleted, but blocked for other uses. Anonymised data will not necessarily be deleted.

Data processing within the HEATING CALCULATOR

The purpose of the HEATING CALCULATOR is to contact you, to create IT-supported offers, to track offers and, if you have explicitly consented to this, to provide further services such as the transmission of product information and market research activities by us. All data collected is transferred to Viessmann servers operated by Lokalleads GmbH, Berlin within the scope of order processing and stored.

The following data is processed:

Your address
Your e-mail address and telephone number
Your entered data for your existing installation, the building or household data and installation request

Proposal preparation

The data protection consent for the preparation of an offer is given via the button “Save offer” and includes the processing of the data for making contact, preparing an offer – and tracking as well as the technical support by SÜLZLE KOPF GmbH, Viessmann Werke GmbH & Co KG and Viessmann Deutschland GmbH.

Further data processing

A use and possible passing on of the data in completely pseudonymized form takes place for the purpose of the improvement of the offer production and for the improvement of the service and plant development. Anonymised means that it is not possible for third parties to assign plant data to your person and cannot be subsequently assigned to you again. Personal data (e. g. name, address, e-mail and telephone numbers) will not be passed on.

Information on cookies and the use of analysis tools

The processing of personal data by cookies and analysis tools is based on Art. 6 Para. 1 lit. f GDPR. This authorisation allows the processing of personal data in the “legitimate interest” of the person responsible, provided that your fundamental rights, freedoms or interests do not prevail. Our legitimate interest is to analyse the use of our website.

We use so-called cookies in the context of the HEATING CALCULATOR. They serve to make our website more user-friendly, effective and secure. Cookies are small text files that are stored on your computer and saved by your browser. Most of the cookies we use are so-called “session cookies”. They are automatically deleted at the end of your visit. Cookies do not cause any damage to your computer and do not contain any viruses.

Google Analytics

This website uses functionalities of the Google Analytics web analysis service. The provider is Google Inc., 1600 Amphitheatre Parkway Mountain View, CA 94043, USA.
Google Analytics uses so-called “cookies”. These are text files which are saved on your computer and will allow your usage of the website to be analyzed. Any information about your usage of this website generated by the cookie will generally be transferred to a Google server in the US and will be stored there.

IP Anonymization

We have enabled the IP anonymization function on this website. Thereby, within any member state of the European Union or in another contracting state of the Agreement on the European Economic Area, your IP address will be truncated by Google before being transmitted to the US. Only in exceptional cases will the full IP address be sent to a Google server in the US and be truncated there. On behalf of the operator of this website, Google will use this information to analyze your usage of the website, to generate reports on the website activities and to provide the website operator with further services related to the usage of the website and of the Internet. The IP address transferred by your browser via Google Analytics will not be merged with any other Google data.

Browser Plugin

You can prevent the cookies from being stored by selecting the applicable settings; please note, however, that in such a case you might not be able to use all functionalities of this website to their full extent. In addition to that, by downloading and installing the browser plugin available at the following link, you can prevent the collection by Google of any data generated by the cookie and related to your usage of the website (including your IP address) and the processing of such data by Google:

Objection Against Data Collection

You can prevent Google Analytics from collecting your data by clicking on the following link. An opt-out cookie will be placed preventing your data from being collected when accessing this website in the future: Disable Google Analytics

Further information on the handling of user data at Google Analytics can be found in Google’s privacy policy:

Commissioned Data Processing

We have entered into a commissioned data processing agreement with Google and comply fully with the strict requirements of the German data protection authorities as regards the application of Google Analytics.

Facebook Plugins (Like Button)

Our webpages contain plugins of the social network Facebook, provider Facebook Inc., 1 Hacker Way, Menlo Park, California 94025, USA. You can recognize the Facebook plug-ins by the Facebook logo or the “Like button” on our page. An overview of the Facebook plug-ins can be found at:°
When accessing our webpages, a direct connection between your browser and the Facebook server is established via the plug-in. This way, Facebook will be notified that you have accessed our webpage using your IP address. If you click Facebook’s “Like Button” while you are logged onto your Facebook account, you can link the content of our pages to your Facebook profile. Facebook can thus correlate your visit of our webpages to your user account. Please note that we as the operator of these pages have no knowledge of the content of the transmitted data or its use by Facebook. For further information concerning the above, please consult Facebook’s privacy policy at

If you do not want Facebook to be able to correlate your visit of our webpages to your Facebook user account, please ensure, to be logged out of your Facebook user account.


Our website uses functionalities of the LinkedIn network. The operator is LinkedIn Corporation, 2029 Stierlin Court, Mountain View, CA 94043, USA. Whenever you access one of our webpages containing functionalities of LinkedIn, a connection with servers of LinkedIn will be established. LinkedIn will be notified that you have accessed our webpages using your IP address. When you click on the “Recommend Button” of LinkedIn and are logged into your LinkedIn account, LinkedIn will be able to correlate your visit of our webpage to you and your user account. Please note that we as the operator of these pages have no knowledge of the content of the transmitted data or its use by LinkedIn.
For further information concerning the above, please consult LinkedIn’s privacy policy at:


Our website uses functionalities of the XING network. The provider is XING AG, Dammtorstraße 29-32, 20354 Hamburg, Germany. Whenever you access one of our webpages containing functionalities of XING, a connection with servers of XING will be established. To our knowledge, no personal data will be stored in the process. In particular, no IP addresses will be stored and no user behavior will be analyzed.
You can find further information on data protection and the XING share button in the XING privacy policy at:

Note on Embedding of Videos

We use videos on our website. Videos are embedded with the aid of external third-party suppliers. When embedding videos, the server of the suppliers will be called upon for technical reasons.


For embedding videos, we make use of the supplier Vimeo. Vimeo is operated by Vimeo, LLC based in 555 West 18th Street, New York, New York 10011.
On some of our webpages we use plug-ins of the supplier Vimeo. When accessing those pages of our website that contain such a plug-in, a connection to the Vimeo servers will be established and the plug-in will be displayed. This way, the Vimeo server will be informed of which ones of our webpages have been accessed by you. If you are logged into Vimeo as a member at that time, Vimeo will correlate this information to your personal user account. When using the plug-in such as clicking the start button of a video, this information will also be correlated to your user account. You can prevent such a correlation by logging out of your Vimeo user account before using our webpage and deleting the respective Vimeo cookies. Further information on the data processing and notes on data protection by Vimeo can be found at


Our website uses plug-ins of YouTube, which is a Google-operated site. The operator of the pages is YouTube, LLC, 901 Cherry Ave., San Bruno, CA 94066, USA. When accessing one of our pages that contain a YouTube plug-in, a connection to the servers of YouTube will be established.
This way, the Youtube server will be informed of which ones of our webpages have been accessed by you.
When you are logged into your YouTube account, you enable YouTube to correlate your surfing behavior directly to your personal profile. You can prevent this by logging out of your YouTube account.
Further information about dealing with user data can be found in the YouTube privacy policy at:

Use of Google Maps

Our website uses the “Google Analytics” component provided by Google, Inc., 1600 Amphitheater Parkway, Mountain View, CA 94043, USA, hereinafter referred to as “Google”.
Whenever the “Google Maps” component is accessed, Google will place a cookie to process user settings and data when the webpage is displayed where the “Google Maps” component is incorporated. Such a cookie will usually not be deleted when the browser is closed, but expires after a certain period of time, unless you delete it manually prior to this.
If you do not consent to this processing of your data, you may disable the “Google Maps” service and can thus prevent the data from being transferred to Google. To this end, you need to disable the Java Script function in your browser. However, we would like to point out that you will then not be able to use “Google Maps” or might just use it with restrictions.
“Google Maps” and any information obtained via “Google Maps” will be used in accordance with the Google Terms of Service and the Additional Terms and Conditions for “Google Maps”

SSL Encryption

This page employs SSL encryption for security reasons and to protect the transmission of confidential contents, e.g. the enquiries that you send to us as the website operator You can identify an encrypted connection by the change in the address bar on the browser, from “http://” to “https://”, and by the padlock symbol on your browser row. Once SSL encryption has been enabled, the data you send us cannot be read by third parties.

Right to Information, Deletion, Blocking

You have the right to receive information on the personal data stored about you free of charge, its origin and receiver and the purpose of the data processing as well as, if applicable, the right to correction, blocking or deletion of such data at any time. If you have questions to the above or any further questions on the personal data, you can contact us at any time using the address specified in the imprint.

If you have any further questions regarding privacy, you can contact our data protection officer, Mr. Steffen Wacker, at any time via the following email address: