Ariston Aures SF 5.5 kW Instant Electric Water Heater (International Warranty)

The Ariston Aures SF 5.5 kW is a compact, tankless water heater engineered to deliver hot water the moment you open the tap, eliminating standby losses and saving space around the point of use. Operating on a 220–240 V single-phase supply, it features two power stages (2.2 + 3.3 kW) so you can balance output temperature with seasonal inlet conditions and user flow preference. By mounting the unit close to a shower or basin, you shorten hot-pipe runs and reduce thermal losses while improving response time and comfort.

Designed for single-point applications, Aures SF maintains dependable performance within a typical 0.3–8 bar operating pressure range and reaches a maximum outlet temperature of about 55 °C under standard conditions. A durable copper heating element ensures reliable heat transfer and long service life, while the enclosure carries IP25 splash protection for safer placement near wet zones (respecting local installation clearances). Safety is supported by a double thermostat to prevent overheating, and selected packs include a 3-spray hand shower for added convenience.

For best results, have a qualified electrician size the MCB/RCD and cable cross-section appropriately for a sustained 5.5 kW load, and ensure water flow is adjusted to stabilize temperature across seasons. If your requirement is a single shower or washbasin, this model offers the ideal balance of performance, efficiency, and compact installation. For simultaneous multi-point demand, consider higher-capacity solutions or multiple units. With international warranty support across Ariston’s service network, you gain peace of mind, genuine spare parts availability, and guidance on routine maintenance to keep the unit operating at peak efficiency.

Specifications