If you have a Rinnai it would be a good idea to periodically clean the little filter that is installed up inside the unit. Matt Risinger show where and how to properly clean the sediment out of these little filters in this video.

See Also:

  1. Rinnai Concentric Venting
  2. Rinnai Tankless Water Heater Ad
  3. Rinnai R85 Tankless Water Heater