Last updated: 16 February 2026
Dwellsee is a free monitoring service for Samsung EHS heat pumps. For any privacy-related questions, contact us at contact@dwellsee.com.
For the purposes of the UK General Data Protection Regulation (UK GDPR) and the Data Protection Act 2018, the data controller is Dwellsee, contactable at the email address above.
When you create an account, we collect your email address and store a securely hashed password. Your email is used for authentication and to contact you about your account if necessary.
When you link your SmartThings account, we store OAuth tokens that allow us to read your heat pump data. Refresh tokens are encrypted using AWS Key Management Service (KMS). We also store your SmartThings device identifiers, device names, and device model information.
We poll your heat pump approximately every minute and store operational data including flow and return temperatures, outdoor temperature, compressor frequency, flow rate, energy consumption, and operating mode. This data is retained for one year and then automatically deleted.
If you set up DHW or weather compensation schedules, we store the schedule configuration including days, times, target temperatures, and your timezone.
If you submit feedback or join our waitlist, we store your email address, the message you provided, and basic metadata (the page you were on and your browser type).
We generate in-app notifications (for example, short-cycling alerts). These are stored for 90 days and then automatically deleted.
We use AWS CloudWatch Real User Monitoring (RUM) to track application errors, page load performance, and API response times. This collects your browser type and pages visited, but does not use cookies. Server-side logs (such as API request logs) are retained for 7 to 30 days.
| Data | Lawful basis |
|---|---|
| Account information | Contract — necessary to provide the service |
| SmartThings tokens & device data | Contract — necessary to poll your heat pump |
| Heat pump telemetry | Contract — the core service you signed up for |
| Schedules & preferences | Contract — features you have chosen to use |
| Feedback & waitlist | Legitimate interest — improving the service |
| Application monitoring | Legitimate interest — maintaining service reliability and fixing errors |
| Data | Retention |
|---|---|
| Account & device information | Until you request account deletion |
| Heat pump telemetry | 1 year (automatically deleted) |
| Notifications | 90 days (automatically deleted) |
| Server logs | 7–30 days (automatically deleted) |
| Debug data (if enabled) | 30 days (automatically deleted) |
We do not sell your data or share it with third parties for marketing purposes. Your data is processed by:
If you use the share feature to create a public snapshot of your device data, that snapshot is accessible to anyone with the link until it expires.
Dwellsee does not use cookies. We store the following in your browser's local storage, all of which are strictly necessary to provide the service:
Under the UK GDPR, you have the right to:
To exercise any of these rights, email contact@dwellsee.com. We will respond within one month.
If you are unhappy with how we handle your data, you have the right to lodge a complaint with the Information Commissioner's Office (ICO).
To close your account and delete all associated data, email contact@dwellsee.com. Upon request, we will delete your account, all device data, telemetry history, schedules, and any other personal data we hold. Data subject to automatic retention (such as telemetry with a TTL) will be deleted immediately rather than waiting for expiry.
We may update this policy from time to time. If we make significant changes, we will notify you by email or through a notice on the site. The “last updated” date at the top of this page shows when the policy was last revised.
Questions? Contact us at contact@dwellsee.com.