The keep‑warm function helps make sure you get hot water quickly when you turn on the tap.

Without it, you’d have to wait much longer for hot water to travel from the system to your tap. Industry standards say that hot water at a kitchen tap should reach a comfortable temperature (about 45°C) within a short time — ideally within 15–45 seconds.

The keep‑warm function gently maintains the system at a ready‑to‑use temperature, so hot water reaches your tap faster. This means:

• less waiting around for hot water
• less water wasted while you wait
• a better day‑to‑day experience when washing up or showering