v1.0.3

Heating & Cooling Degree Days – Negative Temperature Fix (v1.0.3)

A maintenance release that fixes sensor validation for negative temperatures. The integration now correctly handles temperatures below 0°C (or 0°F), so degree days calculations work reliably in winter conditions.

✨ What's New?

Fix: Negative Temperatures in Sensor Validation

Temperature readings are now validated using a proper numeric conversion instead of a string check:

• Previous behavior: Validation used state.replace(".", "", 1).isdigit(), which rejected negative values because the minus sign is not a digit. This caused the integration to fail or skip data when temperatures dropped below 0°C.
• New behavior: Validation uses try/except float() conversion, which correctly accepts:
  • Negative temperatures (e.g. -5.2°C)
  • Scientific notation (e.g. 1e-3)
  • All valid numeric formats
• Impact: Degree days calculations continue to work correctly during cold weather.

This fixes #76.

Thanks to @roumano for reporting this issue and helping improve the integration.

📝 Important Notes

• No breaking changes: This release is fully backward compatible.
• Recommended for cold climates: If you experienced issues in winter (missing data, failed updates, or incorrect degree days when temperatures went below zero), upgrading to 1.0.3 is recommended.

📋 Compatibility

• Minimum required versions:
  • Home Assistant Core: 2024.1.0
  • HACS: 1.32.0

🔧 Installation / Update

Via HACS (recommended)

1. Open HACS
2. Go to Integrations
3. Click the three dots menu on "Heating & Cooling Degree Days"
4. Select "Update"
5. Restart Home Assistant

Manual Installation

1. Download the latest release from the releases page
2. Extract the custom_components folder to your Home Assistant configuration directory
3. Restart Home Assistant