Installed 50 gallon natural gas water heater with new pan, expansion tank, high water alarm, isolation valve and 4 year warranty extension. Heater now has a 10 year warranty from the manufacture. Drain pan is ran to the floor drain located right behind the heater. Installed new main water valve, pressure reducing valve and rear hose bib. All items are working as they should at this time with no issues. Emailed copy of invoice to homeowners email.