De'Longhi La Specialista Arte Evo

MakerDe'Longhi
BoilerThermoblock
Brew boilerNot listed
Steam boilerNot listed
Water tank1.66 L
Plumb-inNot listed
Voltage (US)120V
Maker's water filterWater filter applicable (charcoal, per the page)

What water does this machine require?

De'Longhi hasn't published a limit our check can use for this machine yet, so the check can't give it a result. Whatever the maker does say is quoted below.

Will my water work with this machine?

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Check my water for this machine

The maker's water guidance

What the maker says this machine needs from its water. This is machine care, not drinking-water advice.

From De'Longhi's guidance for this model.

  • Water type

    “Use only potable fresh water. • Do not use sparkling (carbonated) or distilled water.”

    EC9250 Coffee Maker instructions for use (US/Canada, EN-FR), De'Longhi asset 369584, PDF dated Feb 2026, PDF p. 7, 1.2 What water to use. Source (opens in a new tab), saved October 28, 2026.

  • Hardness setting

    “The machine can also be programmed according to the actual hardness of the local water supply, in which case descaling may be required less frequently”

    EC9250 Coffee Maker instructions for use (US/Canada, EN-FR), De'Longhi asset 369584, PDF dated Feb 2026, PDF p. 15, Water hardness. Source (opens in a new tab), saved October 28, 2026.

From De'Longhi's guidance for De'Longhi EC9255M (manual linked from the US EC9255M page; cover: EC9255).

  • Hardness setting

    “The machine can also be programmed according to the actual hardness of the water supply in the various regions, in which case descaling may be required less frequently”

    EC9255 Coffee Maker instructions for use (US/Canada, EN-FR), De'Longhi asset 282351, PDF dated Apr 2023, PDF p. 17, Water hardness. Source (opens in a new tab), saved October 28, 2026.

Where to buy

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Specs read from the maker's or seller's page.