Water heaters are one of the least glamorous types of home appliances. The vertical metal tanks typically sit out of sight in dark corners of basements or behind closet doors. Most homeowners never think about the devices—until there’s no hot water. Just ask anyone who’s ever been forced to take a cold shower.

A variety of manufacturers produce electric and hot water heaters for residential applications, including GE Appliances, a Haier company. To increase production capacity, it recently invested $70 million in a state-of-the-art manufacturing plant in Camden, SC. The 265,000-square-foot facility also serves as the company’s Center of Excellence for water heater manufacturing.