Privacy Policy
Donker Heat Exchangers B.V. We take the protection of your personal data very seriously. In this privacy policy, we explain what information we collect, why we process it, and how we protect your privacy.
This privacy policy applies to the websites of Donker Heat Exchangers and Dark Fuel.
Data Controller
Donker Heat Exchangers B.V.
15 Aploniastraat
3084 CC Rotterdam
The Netherlands
Chamber of Commerce: 24272123
Email: exchangers@donker.nl
Phone: +31 (0)10 410 43 20
What personal data do we collect?
Depending on your interaction with us, we may process the following information:
Name
Company Name
Position
Email address
Phone number
Address Information
IP address
Information you voluntarily provide via forms, email, or by phone
Technical Information About Your Visit to Our Website
We do not process special categories of personal data unless it is required by law or you provide them yourself.
Why do we process your data?
We process personal data for the following purposes:
Responding to questions and requests for information
Preparing and Sending Quotes
Performance of Contracts
Delivering Our Products and Services
Customer Service and Communication
Improving Our Websites
Website Security
Compliance with Legal Obligations
Marketing communications if you have given your consent
Legal Basis for Processing
We process personal data only when there is a legal basis for doing so, such as:
Your Consent
Performance of a Contract
Compliance with Legal Obligations
Our legitimate interests, such as website security, customer service, and business operations
Retention Periods
We do not retain personal data for longer than is necessary for the purpose for which it was collected or for as long as required by law.
Sharing Personal Data
We never sell your personal information to third parties.
If necessary, we may share data with parties that perform work on our behalf, such as:
Web Hosting Providers
IT service providers
Email Providers
Accounting and Administrative Service Providers
Government agencies, if required by law
We enter into data processing agreements with data processors when necessary.
International Transfer
If personal data is processed outside the European Economic Area, we ensure that appropriate security measures are taken in accordance with applicable privacy laws.
Security
We take appropriate technical and organizational measures to protect personal data against loss, unauthorized access, alteration, or misuse.
Our websites are secured through the following measures, among others:
SSL encryption
Secure servers
Access Control
Regular software updates
Cookies
Our websites use cookies to improve the website's functionality, collect visitor statistics, and, where applicable, support marketing efforts.
You can find more information about this in our cookie policy.
Your Rights
You have the right to:
Viewing Your Personal Information
To Have Your Information Corrected
Requesting the Deletion of Your Data
To restrict processing
Objecting to Data Processing
Withdrawing Your Consent
Transferring Your Data (Data Portability)
You can send a request to:
We generally respond within one month.
Complaints
Do you feel that we are not handling your personal data with due care? If so, please contact us.
In addition, you have the right to file a complaint with the competent data protection authority.
Changes
Donker Heat Exchangers B.V. reserves the right to amend this privacy policy. The most current version is always published on our websites.
Last updated: July 2026