- Electric under-sink water heater Ferroli CUBO 15S, for the preparation of domestic hot water, tank capacity 14 liters, heater power 1.5 kW.
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Ferroli CUBO 15S (GRL1R40A)
The Ferroli CUBO 15S (GRL1R40A) electric water heater is a compact 14-liter unit designed for under-sink installation. Equipped with an efficient 1.5 kW stainless steel heater and high-quality ciepLn insulation, it provides comfortable hot water preparation with low energy consumption.
- Capacity: 14 liters
- Heater power: 1.5 kW
- Energy efficiency class: B
- Mounting: under-sink
- Maximum operating pressure: 8.5 bar
Product characteristics
The CUBO 15S model features an elegant oval design with a housing made of durable ABS plastic. Thanks to its ergonomic design, it is ideal for installation in small spaces such as bathrooms and kitchens. It has a temperature control knob, an LED indicating the operation mode and a master switch integrated into the housing.
Safety and durability
The Ferroli CUBO 15S heater is equipped with a magnesium anode to protect the inside of the tank from corrosion and a safety thermostat to prevent water overheating. In addition, a safety valve with a water drain function guarantees safe expLoatation. The thermal insulation used reduces energy losses and increases the efficiency of the device.
Technical data
| Parameter | Value |
|---|---|
| Model | CUBO 15S (GRL1R40A) |
| Mounting type | Under-basin |
| DHW load profile. | XXS |
| Energy efficiency (ηWH) | 32,7% |
| Energy efficiency class [ErP] | B |
| Annual energy consumption (AEC) | 564 kWh |
| Sound power level (LWA) | 15 dB(A) |
| Capacity | 14 liters |
| Heater power | 1.5 kW |
| Power supply | 1/N/PE ~230 V / 50 Hz |
| Maximum working pressure | 8.5 bar |
| Temperature control range of hot water. | 35-75°C |
| Width | 375 mm |
| Height | 388 mm |
| Depth | 345 mm |
| Weight (without water) | 8.5 kg |
| Hydraulic connections | G ½" (cold/hot water) |
Source of technical data: data sheet of model GRL1R40A.link
FAQ - Frequently asked questions
- What is the capacity of the model GRL1R40A? 14 liters.
- Where can the heater be installed? Under the sink - in the under-sink version.
- What is the power of the heater? 1.5 kW.
- What is the power supply of the device? 230 V / 50 Hz.
- What is the maximum working pressure? 8.5 bar.
- What is the noise level? 15 dB(A).
- Does the device have a magnesium anode? Yes, it protects the tank from corrosion.
- What is the temperature range of the hot water? From 35 to 75°C.
- Does the device have a safety valve? Yes, with a water drain function.
- What is the energy class of the model? Class B.
- How much is the annual energy consumption? 564 kWh.
- What are its dimensions? 375 × 388 × 345 mm.
- Does the CUBO 15S have thermal insulation? Yes, it provides low energy loss.
- Does the device have an operation indicator? Yes, an LED integrated into the switch.
- How many years of warranty does the manufacturer offer? 3 years for the entire device.
Summary
Ferroli CUBO 15S (GRL1R40A) is a modern, durable and energy-efficient electric water heater with a capacity of 14 liters, ideal for under-sink installation. It is characterized by high efficiency, quiet operation and compact design, making it an excellent choice for small bathrooms and kitchens.

