Sunward Solar Hot Water System - Installation Guidelines
Step 3 - Run Micro-Tubing™ from the Solar Collectors to the Heat Exchanger
Basic Steps:
- Dig a trench (minimum 8"-deep) from (ground-mounted) Collectors to entry point of house.
- Drill one 1-1/4" hole through sill.
- Run Micro-Tubing and low-voltage wire from Collectors to Heat Exchanger.
- For roof-mounted, run Micro-Tubing and wire down the outside of the house, or inside, through attic or closet.

Tools Needed:
- Shovel
- Tubing cutter
- Electric drill with 5/8” bit
- Trencher (optional)
Estimated Time: 5 hours with a helper (Assumes digging a 50' trench)
Sunward Makes It Simple: Flexible, insulated 3/8” copper tubing eliminates the cost of cutting and soldering the rigid copper piping other systems use.
Sunward Makes It Simple: 20-watt PV panel generates its own power to drive the pump, so no 110-v wiring is required.