Instantaneous Water Heaters

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In this section you will find TESY IWH electric instantaneous water heaters from the Quadroflex brand. The heater warms the water directly as it flows through, so there is no need to wait for a classic tank to heat up.

The models differ in output and connection method (pressurised vs. unpressurised design) - choose according to how many draw-off points the heater needs to supply with hot water.

Frequently Asked Questions

Where is an instantaneous water heater usually mounted? Most often under a washbasin, sink, or near the draw-off point, saving space compared to a classic water heater.
Can it be connected to hot water from another source? The heater is connected to the cold water supply, which it then heats to the required temperature as it flows through.
How do I choose the right output? According to the number of draw-off points used simultaneously and the required hot water flow rate - specific values can be found in the product parameters.