Generally for GE water heaters the first one or two digits are the month and the next two the year of manufacture. So your heater was made in month 3 and in year 98 - March 1998. Contact Information for General Electric Water Heaters. General Electric Water Heaters, GE Appliances, parts, accessories, water heater manuals, warranty information, General Electric makes gas and electric water heaters. GE tank water heaters are available in multiple sizes, with energy-efficiency claims that vary by size and multiple levels of warranty coverage.Mar 02, 2018 · Water and electricity meters help us determine if a washer will cost you big bucks to run. The GE GTW680BSJWS surprised us with how efficient it was. Typically, a top loader that's over four cubic feet requires a lot of water to fill up, but this GE kept its water usage in check.