Rinnai tankless water heaters are designed to provide maximum performance and efficiency using either a 3/4 or 1/2 gas line, as long as sufficient gas flow is available.

Rinnai tankless water heater flushing instructions. Search below for product documents. This appliance is direct vent where air. Open the faucets in your home to drain all water from the.

Use the service (isolation) valve and connect the circulation pump (such. Learn the proper way to flush and maintain a rinnai tankless water heater. We will look at some of the content found in the manual.

Rinnai tankless water heater manual. Connect the hoses and verify connections are tight. The cost of flushing a rinnai tankless water heater with vinegar can range from $50 to $150.it is recommended that you cleanse your well water twice a year if you use well water.

It provides a continuous supply of hot water at a preset temperature. While any hot water is being provided, the temperature setting can only be adjusted. Close the valves on both hot and cold water lines.

If the water heater is off, press the on/off button to turn on. If you can’t find what you need, contact rinnai. Turn on the supply line’s shutoff valve to flush any remaining vinegar or cleaner and let it run for at least ten minutes.

Shut off the valve and continue draining the water. The rinnai water heater is one of the most advanced water heaters available. As a general rule, you should flush.