Solar Water Heating Solutions

Rinnai Solar Thermal Collectors

These are high performance, weatherproofed solar thermal collectors for water heating (not to be confused with solar power generation).
Rinnai offers both Flat Plate and Evacuated Tube collectors, each with specific benefits to suit your application.  Either option will provide years of low maintenance, “free” energy to heat your water provided the units are correctly sized and installed. 

ORIENTATION

Both flat plate and evacuated tube collectors work best when facing due south. However, evacuated tube collectors will outperform flat plate collectors when a due south location is not an option, i.e. East/ west facing or both.

PERFORMANCE

The performance of a flat plate collector is close to that of an evacuated tube collector in the summer months when facing due south. Evacuated tube collectors have better overall results in both early and late season and they are not affected by adverse weather conditions and even produce impressive temperatures on cloudy days. The flat plate collectors are exceptionally sturdy and durable, perhaps more suited to vulnerable locations.
Evacuated tube collectors have multiple glass tubes, which heat up by absorbing the sun’s energy. The vacuum insulated tube retains most of this heat and the constant profile of the round tube means that the collector is always perpendicular to the sun’s rays. The energy absorbed is approximately constant over the course of the day.

Please contact Rinnai for assistance with selecting the system that will best suit your specific requirements.