Compare the flow and temperature at the pressure relief valve. o If the temperature and flow rate are correct at the PRV then the problem…

5.1 PRELIMINARY CHECKLIST Check all of these basic items before proceeding onto any other section: • GAS/WATER/ELECTRIC: o The gas supply valve should be fully…

1. Follow all local codes, or in the absence of local codes, follow the most recent edition of the National Fuel Gas Code: ANSI Z223.1/NFPA…

Becoming familiar with how a tankless water heater normally operates may help to figure out what is wrong with it. Assuming it is properly installed…