Where will the panels be installed?
The best orientation for a solar hot water system is on a south-facing roof, however roofs that face east of west may also be acceptable, even though they will require more collector area. Flat roofs also work well for solar systems, because the thermal collectors can be mounted flat on the roof, facing the sky or on frames, tilted toward south, at the optimum angle. If a rooftop cannot be used, your solar hot water system can also be installed on a ground anchored rack or trellis.
