How Do Point-of-Use Electric
Mini-Tank Water Heaters Work?
Hot water is provided quickly when point-of-use electric mini-tank water heaters are installed close to fixtures supplying water. Depending on flow rate and tank size, hot water doesn't have to travel far and can arrive almost immediately. Designed for single applications and small load requirements, these water heaters are commonly located under sinks, in small apartments, and in additions like side rooms and garages.
The unit connects directly to a cold water source, which fills the tank and is heated with an electric heating element to the desired temperature until it's ready to be used. The water is released when a faucet or fixture is opened. Because of their specific small design, point-of-use electric mini-tank water heaters cannot handle great demands and can run out of hot water more quickly than traditional tank water heaters. If the hot water does run out during a time of high usage, the unit works hard to reheat the cold water quickly as the tank refills.