ELIZ EURO 150 T21 ELZ_3324

Product detailed description

Combined water heaters are essential in modern plumbing systems, particularly in residential and commercial buildings where space is limited and multiple heat sources are available. The ELIZ EURO 150 T21 is designed for vertical wall mounting, making it ideal for apartments, family homes and compact installations. It integrates two heating coils and an electric element to allow simultaneous or sequential heating from different media, such as a boiler and solar system. This model is suitable for applications where the water heater must be suspended from a wall while still utilising three distinct heat sources for optimal efficiency and flexibility.

For installers, the ELIZ EURO 150 T21 offers a compact solution with a 120-litre tank, enabling it to serve one or more draw-off points. The heater is designed for integration into central heating systems, with heating coil outputs on the left side and water inlets at the bottom. It also includes two ports for connecting control sensors, allowing for system monitoring and automation. The heater’s dual heating coils and electric element ensure rapid water heating and reliable operation in a variety of installation scenarios.

Technical parameters

Type	EURO 150 T21
Power	2000 W
Voltage	230 V
Current	10 A
Electrical protection	IP 24
Water connection	1/2 inch
Maximum tank pressure	6 bar
Water heating time from 12 - 65 °C	4.7 hours
Heating coil connection	3/4 inch
Heating coil S1 surface area	0.53 m²
Heating coil S1 power	15 kW
Heating coil S2 surface area	0.53 m²
Heating coil S2 power	15 kW
Wall mounting	Yes
Safety fuse	Yes
Weight	58 kg
Product dimensions	W / H / D: 462 x 1420 mm
Tank warranty	5 years
Product warranty	2 years
EAN	3800035773019
Code	ELZ_3324
Brand	ELIZ

The 2000 W electric heating element and two 15 kW heating coils provide flexibility in heat source selection. The 1/2 inch water inlet and 3/4 inch coil connections ensure compatibility with standard plumbing and heating systems. The IP 24 rating indicates protection against solid objects and splashing water, suitable for indoor installation. The 6 bar maximum tank pressure is typical for domestic water heating systems and must be considered during system design to ensure compatibility with pressure regulators and expansion vessels.

Installation and connection

The ELIZ EURO 150 T21 is designed for vertical wall mounting. The installation process involves securing the heater to a wall using the provided bracket and ensuring the tank is level. The 1/2 inch water inlet requires a female thread connection, while the 3/4 inch heating coil ports are also threaded. Installers should verify that the wall structure can support the 58 kg weight of the heater and that all connections are tightened to manufacturer specifications. Common installation errors include incorrect bracket positioning, which can lead to uneven load distribution, and improper sealing of connections, which may result in leaks. The heater must be installed in a location with sufficient clearance for maintenance and airflow to prevent overheating.

Compatibility and accessories

The ELIZ EURO 150 T21 is compatible with a range of heating systems, including gas and oil boilers, heat pumps and solar thermal systems. The dual heating coils allow for simultaneous or sequential operation, depending on system configuration. For installations requiring additional control, external sensors can be connected to the two sensor ports. The heater includes a built-in safety valve and check valve, which are essential for system protection. No additional accessories are required for standard installation, as the heater comes with a mounting bracket and safety components.

Technical background for designers

The ELIZ EURO 150 T21 operates by transferring heat from two external sources to the water in the tank via copper heating coils. The electric heating element provides a secondary or primary heat source, depending on system design. The tank is constructed from high-quality steel and protected with a zirconium glaze to resist corrosion. The 33 mm thick polyurethane insulation without CFC ensures minimal heat loss and low operating costs. The heater’s dimensions (462 x 1420 mm) allow for integration into standard wall cavities. The system’s efficiency is influenced by the flow rate through the heating coils, the temperature of the heat source and the insulation quality. Designers should ensure that the system is sized to meet the building’s hot water demand and that the heating coils are compatible with the selected heat sources.

Service and operation

The ELIZ EURO 150 T21 requires minimal maintenance. The two magnesium anodes should be inspected and replaced as needed to prevent tank corrosion. The electric heating element and thermostat can be accessed via the control panel for cleaning and adjustment. The heater includes a thermal fuse for overheat protection and a waterproof switch with indicator light for energy-saving operation. The ECO mode reduces energy consumption by limiting the maximum water temperature to 55°C. No specific service intervals are provided in the brief, but regular inspection of the anodes and connections is recommended to ensure long-term performance and safety.

Frequently asked questions

Can the ELIZ EURO 150 T21 be connected to a solar thermal system and a boiler simultaneously?
Yes, the heater features two heating coils that can be connected to different heat sources, such as a boiler and a solar thermal system. This allows for simultaneous or sequential heating depending on the system configuration.

Is the heater suitable for installation in a basement?
Yes, the IP 24 rating provides protection against splashing water and solid objects, making it suitable for indoor installation. However, the location should be dry and well-ventilated to prevent condensation and overheating.

Can the water temperature be adjusted manually?
Yes, the thermostat on the control panel allows for manual temperature adjustment between 7°C and 75°C. The ECO mode automatically sets the temperature to 55°C to reduce energy consumption.

What is the maximum pressure the tank can handle?
The tank is rated for a maximum pressure of 6 bar, which is typical for domestic water heating systems. This should be considered when designing the system to ensure compatibility with pressure regulators and expansion vessels.

Documents for download

• Technical specifications (PDF)