What we store
- Your settings (country, units, theme) in a cookie or in your browser, so pages show your units and prices.
- Anonymous usage counts (which tools are used, which shop links are clicked) without cookies or personal identifiers, to improve the tools.
- Saved designs, only when you save one: the room and heater choices, under a private link.
- Your e-mail address, only if you ask us to send you a design or price alerts; you can unsubscribe with one click.
What we don't do
No advertising cookies, no selling of data, no third-party analytics. When you click a shop link, the shop's own privacy policy applies on its site (including its affiliate cookie).
Your rights
You can ask us to show, correct or delete what we hold about you (contact details are on the imprint page). Visitors in the EU/EEA and the UK have the rights of the GDPR / UK GDPR.