Bosch TR1500 TO 5 T kleine boiler 5L open onderbouw 1,8kW wit

The Bosch TR1500 TO 5 T is a compact, vented (open) small storage water heater designed for under-sink installation. With a 5-liter capacity and 1.8 kW power output, it provides hot water quickly and efficiently for single-point use, such as a kitchen sink or small washbasin. Its unpressurized design makes it ideal for low-pressure systems.

Advantages

Space-saving under-sink design fits neatly into tight cabinets. Fast heating time of approximately 9 minutes from 10°C to 60°C ensures hot water on demand. Energy efficiency class A helps reduce electricity consumption. The polypropylene inner tank is corrosion-resistant and durable. Frost protection function prevents damage in cold environments.

Suitable for

• Under-sink installation in kitchens or bathrooms
• Single-point hot water supply for hand washing or dish rinsing
• Vented (open) unpressurized water systems
• Small households, guest rooms, or offices

Key specifications

• Product Type: Small Storage Water Heater
• Installation: Under-sink (Untertisch)
• System Type: Vented (Unpressurized / Offen)
• Capacity: 5 Liters
• Power Output: 1.8 kW
• Voltage: 230 V
• Energy Efficiency Class: A
• Temperature Range: 35 - 85 °C
• Heating Time (10°C to 60°C): Approx. 9 minutes
• Protection Class: IP24
• Inner Tank Material: Polypropylene
• Max Operating Pressure: 0 bar (unpressurized)
• Standby Energy Consumption: 0.2 kWh/24h
• Controls: Rotary Temperature Selector
• Frost Protection: Yes
• Color: White
• Connection Type: Fixed connection (requires appropriate plug or hardwiring)
• Heating Element Material: Copper

Recommendations

For optimal performance, ensure the water heater is installed by a qualified professional and that the electrical supply matches the specifications (230 V). Regular maintenance, such as descaling, may be required depending on water hardness. This unit is designed for vented systems only; do not use with pressurized plumbing.