Age of water heater Home › Forums › Public Forums › General Plumbing › Age of water heater This topic has 1 reply, 2 voices, and was last updated 21 years, 2 months ago by robertgf. Viewing 1 reply thread Author Posts 21 Feb 2003 at 11:09 pm #276377 MasterPlumbersKeymaster Hi!I’m trying to figure out how old the water heater is in my condo. If anyone knows a resource to help me figure this out, I would appreciate it. 50 gallon 240 Volts, 4500 Wattage, AC OnlySerial No. RU 1094B09593 Appreciate any help! 22 Feb 2003 at 2:19 am #294031 robertgfParticipant the first four numbers should refer to the month and year of manufacture october 1994 » This message has been edited by robertgf on 22 February 2003 Author Posts Viewing 1 reply thread You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In