Solar thermal installation is contractor work — typically licensed solar installer.
Components
- Rooftop collector mounting (south-facing, unshaded)
- Glycol loop from collector to storage tank coil
- Pump station mid-loop
- Differential controller monitoring collector vs tank temps
- Expansion tank for glycol
- Backup water heater (gas or electric) for cloudy days
Permits
Solar installations require local building permits, structural review for rooftop, and possibly utility approval if grid-interactive.