Cold Water Inlet Filter
Dirt Trap Filter
Air
Filter
Page 11 has good graphics and details about flushing the heat exchanger.
Jim Weems has the items needed for this simple afternoon task. Use your plastic recycle trash bucket for the vinegar pumping procedure.
Most people don’t know that Tankless water heaters need regular maintenance. In this video, you'll learn the full routine step-by-step (including all the tools) to make your unit last 20+ years. This video is intended for the Navien Tankless units found in most Hyde Park homes.
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