TTulpe Buono 15-U water heater 15 liters "under sink" model

TTulpe® Buono 15-U – 15 Litre Under Sink Electric Water Heater with SMART Control

Smart 15 litre water heater for under-sink installation

The TTulpe Buono 15-U is a modern 15 litre under sink electric water heater designed for users who need more hot-water capacity than a compact 10 litre model while still keeping installation space to a minimum.

Installed vertically beneath a kitchen sink or washbasin, the Buono 15-U provides a convenient local supply of hot water without requiring a large storage cylinder. With 1,500 W heating power, electronic controls, an LCD display and an intelligent SMART energy-saving programme, it combines extra capacity with modern energy management.

Extra hot-water reserve in a compact format

The 15 litre storage capacity makes the Buono 15-U particularly suitable where hot water is used regularly throughout the day.

Typical applications include:

kitchen sinks;

kitchenettes;

utility rooms;

offices;

practices;

workshops;

washbasins;

holiday homes.

Compared with a smaller 10 litre point-of-use heater, the additional capacity provides more reserve for washing dishes, cleaning and repeated hot-water use.

Specifically designed for under-sink installation

The Buono 15-U is intended for vertical wall mounting with the water connections facing upwards, making it specifically suited to installation below a sink or worktop.

Its dimensions are approximately 380 × 370 × 310 mm, with a net weight of around 8 kg. This makes it compact enough for installation in many kitchen cabinets while still providing a useful 15 litre hot-water capacity.

SMART energy-saving technology

A key feature of the TTulpe Buono 15-U is its SMART energy-saving programme.

The system monitors hot-water use and adjusts operation to better match expected demand. When maximum hot-water temperature is not immediately required, the heater can reduce unnecessary energy use while preparing for future demand.

Together with effective tank insulation, this helps the appliance achieve an energy efficiency class B rating.

Electronic controls with LCD display

The Buono 15-U offers more control than a traditional mechanically operated small water heater.

The electronic interface includes:

LCD display;

SMART mode;

adjustable temperature;

temperature indicator;

electronic controls;

on/off switch;

temperature protection.

The clear display makes it easy to monitor and adjust the required water temperature.

1,500 W heating power

The TTulpe Buono 15-U operates on a 230 V electrical supply with a nominal power of 1,500 W.

The specified warm-up time is approximately 32 minutes, and the maximum water temperature is 75°C.

This gives the heater a practical balance between storage capacity, electrical load and recovery time.

BIO-glasslined inner tank

The internal steel tank features a durable BIO-glasslined coating designed to protect the storage vessel.

A magnesium anode provides additional corrosion protection and contributes to the long-term protection of the inner tank.

Triple safety inlet combination included

The Buono 15-U is supplied with an inlet combination incorporating a:

drain valve;

non-return valve;

pressure-relief valve.

Wall anchors and the instruction manual are also included.

The water connections are ½ inch.

TTulpe Buono 15-U or 10-U?

Both models are designed for under-sink installation, but their intended use differs.

Buono 10-U

Best suited where maximum compactness and moderate hot-water demand are the priority.

Buono 15-U

Offers 50% more storage capacity, making it a better choice where hot water is used more frequently or a larger reserve is preferred.

The 15-U is therefore particularly attractive for kitchens and workspaces with more intensive daily use.

Key benefits

15 litre storage capacity

Designed specifically for under-sink installation

1,500 W heating power

230 V connection

SMART energy-saving programme

Energy efficiency class B

Electronic controls

LCD display

Adjustable temperature

Maximum temperature 75°C

Approx. 32-minute warm-up time

BIO-glasslined inner tank

Magnesium anode

Triple safety inlet combination included

½" water connections

Compact vertical design

Anthracite finish

Approx. 8 kg net weight

Why choose the TTulpe Buono 15-U?

The TTulpe Buono 15-U is an excellent choice if you need a compact under sink electric water heater with more hot-water capacity than a typical small point-of-use unit.

Its combination of 15 litre capacity, SMART control, LCD display, energy class B and compact under-sink installation makes it well suited to kitchens, offices and other locations where hot water is used regularly.

Instead of occupying space with a large storage heater, the Buono 15-U provides a dedicated supply of hot water close to the tap.

Order the TTulpe Buono 15-U from Waterheater.shop and enjoy extra hot-water capacity in a compact, smart under-sink water heater.