Water heaters with water flow regulator

Water flow regulator

— a limiter found in some models of tankless water heaters (see "Water heater type").

The faster water moves through such a heater, the more power is needed to heat it, and if the water flow is too high, the device simply cannot cope with its task. To avoid this, an automatic regulator is used — it monitors the amount of water passing through the device and, if necessary, reduces it. This reduces the pressure at the outlet but provides efficient heating.