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ARISTON ANDRIS RS 15U/3 EU 15 l 1.2 kW electric water heater, under-sink installation, 3100335

ARISTON ANDRIS RS 15U/3 EU, product code 3100335, is a compact electric storage water heater with a 15 L capacity and 1.2 kW rated power, specifically designed for installation under a sink. Its compact configuration makes it suitable for placement inside a cabinet beneath a kitchen or bathroom sink, providing a local hot-water supply close to the point of use. For this specific model, ARISTON specifies 15 L capacity, 220–240 V supply, 1.2 kW power and XXS load profile.
The ANDRIS RS range is designed as a compact and straightforward hot-water solution. Water temperature is controlled using an external mechanical regulator, while an immersed thermostat provides accurate temperature management. ARISTON uses a copper heating element, providing good corrosion resistance and reliable long-term operation.
The ANDRIS RS range incorporates TitanShield tank protection with a titanium-enamel coating. A magnesium anode provides additional corrosion protection. A thick layer of high-density polyurethane insulation surrounds the inner tank, helping maintain stored-water temperature for longer and reducing heat losses.
The ANDRIS RS range also incorporates safety solutions, including a double safety thermostat. ARISTON specifies that the products have undergone the required safety testing. A large inspection flange facilitates access to internal components during servicing. The model features characteristic ARISTON Italian design and is manufactured in Italy.
The specific ANDRIS RS 15U/3 EU 3100335 has a maximum operating temperature of 78 °C, maximum working pressure of 8 bar and protection rating of IPX1. Heating time at ΔT = 45 °C is 45 minutes, heat loss at 65 °C is 0.85 kWh/24 h, and weight is 7.4 kg. Overall dimensions A × B × C × D are 360 × 324 × 144 × 78 mm.
The official EU product fiche specifies energy efficiency class B, XXS load profile, water-heating energy efficiency of 33%, annual electricity consumption of 558 kWh, reference thermostat setting of 45 °C and indoor sound power level of 15 dB. EPREL registration number is 108820.
Main advantages
- Capacity 15 L
- Rated power 1.2 kW
- Supply voltage 220–240 V
- Under-sink installation
- Compact wall-mounted storage water heater
- TitanShield tank protection
- Titanium-enamel coating
- Magnesium anode
- Copper heating element
- Mechanical temperature regulation
- External temperature regulator
- Immersed thermostat
- Double safety thermostat
- Thick high-density polyurethane insulation
- Large inspection flange for easier maintenance
- Maximum operating temperature 78 °C
- Maximum working pressure 8 bar
- Heating time ΔT = 45 °C — 45 min
- Heat loss at 65 °C — 0.85 kWh/24 h
- Energy efficiency class B
- Load profile XXS
- Water-heating energy efficiency 33%
- Annual electricity consumption 558 kWh
- Sound power level 15 dB
- Protection rating IPX1
- Weight 7.4 kg
- Dimensions 360 × 324 × 144 × 78 mm
- Made in Italy
- Product code 3100335
Technical information
| Parameter | Value |
|---|---|
| Manufacturer | ARISTON |
| Model | ANDRIS RS 15U/3 EU |
| Product code | 3100335 |
| Product type | Electric storage water heater |
| Capacity | 15 L |
| Installation | Under sink |
| Rated power | 1.2 kW |
| Supply voltage | 220–240 V |
| Control | Mechanical |
| Thermostat | Immersed |
| Heating element | Copper |
| Tank protection | TitanShield |
| Tank coating | Titanium enamel |
| Corrosion protection | Magnesium anode |
| Thermal insulation | High-density polyurethane |
| Maximum working pressure | 8 bar |
| Maximum operating temperature | 78 °C |
| Heating time ΔT = 45 °C | 0:45 h:min |
| Heat loss at 65 °C | 0.85 kWh/24 h |
| Energy efficiency class | B |
| Load profile | XXS |
| Water-heating energy efficiency | 33% |
| Annual electricity consumption | 558 kWh |
| Reference thermostat setting | 45 °C |
| Sound power level | 15 dB |
| Protection rating | IPX1 |
| Weight | 7.4 kg |
| Dimensions A × B × C × D | 360 × 324 × 144 × 78 mm |
| Country of manufacture | Italy |