Control vSMART and eRELAX automatically — at checkout
As soon as your guest checks out, CheckYout automatically activates away mode on your Vaillant thermostat. You save energy without any manual intervention.
Available from Pro
Market leader in DACH
Vaillant is one of the most widespread heating manufacturers in Germany, Austria and Switzerland.
Lower energy costs
Empty vacation rentals don't need to be kept warm. Away mode sets heating to minimum — automatically.
Simple setup
No technical know-how needed. Enter Vaillant credentials, done. The rest runs automatically.
Secure
Your Vaillant password is discarded immediately after connection. CheckYout only stores the API token — securely in your account.
How it works
Enter Vaillant credentials once in CheckYout (password is not stored)
Checkout detected — thermostat switches to away mode
Optional: Automatically heat up before arrival (with PMS)
Compatible devices
Vaillant vSMART and eRELAX are based on the Netatmo platform. CheckYout supports both via the same integration.
What happens at checkout
Guest checked out
Vaillant switches to away mode
→ Only if no arrival on same day
Vaillant heats up automatically (via PMS booking data)
→ Guest arrives to a warm place
Pre-heating requires a connected PMS.
Frequently Asked Questions
Control Vaillant heating automatically
Set up once — never forget the heating again.
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