E.C.A. Arceus EK 15 MT 15 kW Electric Combi Boiler

E.C.A. Arceus EK 15 MT electric combi boiler

The E.C.A. Arceus EK 15 MT 15 kW Electric Combi Boiler is an electric heating and hot-water appliance designed to provide central heating and domestic hot water from a single compact system.

The Arceus MT range combines electric central heating with domestic hot-water production and includes features such as smart modulation, OpenTherm technology, ECO and Comfort modes, frost protection, automatic bypass and dual NTC temperature control.

The EK 15 MT model provides a rated heating output of 15 kW, with a maximum central-heating output of approximately 14.9 kW and a published domestic hot-water flow rate of approximately 9.3 litres per minute at a 35°C temperature rise.

Key Features

• E.C.A. Arceus EK 15 MT
• 15 kW electric combi boiler
• Central heating and domestic hot water
• Approximately 14.9 kW CH output
• 9.3 L/min DHW flow at ΔT35°C
• Smart modulation
• OpenTherm technology
• ECO and Comfort heating modes
• Automatic filling loop
• Automatic bypass system
• Stainless-steel heat exchanger
• Inconel 800 alloy heating elements
• Dual NTC temperature control
• Frost protection
• LCD display
• Compatible with room thermostats
• Optional smart thermostat connectivity
• Compact wall-mounted design
• IPX4D protection
• Suitable for applicable European electrical installations

15 kW Electric Combi Boiler

The E.C.A. Arceus EK 15 MT is designed for customers looking for a 15 kW electric combi boiler capable of providing both space heating and domestic hot water.

Unlike an electric central-heating-only boiler, the MT version is designed to provide domestic hot water as well as central heating. E.C.A.’s documentation identifies the MT model as the configuration intended for both central heating and hot domestic water.

The 15 kW version has a rated heat output of 15 kW, with approximately 14.9 kW at rated heating output according to the published product data.

Domestic Hot Water Performance

The E.C.A. Arceus EK 15 MT provides domestic hot water through its integrated hot-water system.

The published DHW flow rate is approximately:

9.3 litres per minute at a 35°C temperature rise.

Actual hot-water performance depends on incoming water temperature, flow demand, water pressure and the required outlet temperature.

This makes the EK 15 MT relevant to searches for:

• 15 kW electric combi boiler
• E.C.A. Arceus 15 kW
• electric combi boiler with hot water
• electric central heating and hot water boiler
• 9 L/min electric combi boiler

Smart Modulation

The Arceus incorporates a smart modulation system designed to adjust heating operation according to system demand.

Modulation can help the boiler operate at an appropriate output rather than simply operating continuously at maximum rated power.

The exact operating behaviour depends on system design, controls and heating demand.

OpenTherm Technology

The E.C.A. Arceus range incorporates OpenTherm technology.

OpenTherm-compatible controls can communicate with compatible heating appliances to provide more detailed control of heating operation.

Before purchasing an external thermostat or controller, verify compatibility with the specific E.C.A. Arceus model and control configuration.

ECO and Comfort Modes

The Arceus provides ECO and Comfort modes for heating-system operation.

These settings allow users and installers to configure the appliance according to the desired operating mode and system requirements.

The appropriate mode depends on the heating system and user requirements.

Stainless-Steel Heat Exchanger

The E.C.A. Arceus EK 15 MT uses a heat-exchanger system designed for both heating and domestic hot-water operation.

The product incorporates a stainless-steel heat exchanger, while the manufacturer identifies a second plate heat exchanger for domestic hot-water supply on MT models.

This configuration allows the MT version to provide both central heating and domestic hot water.

Inconel 800 Heating Elements

The Arceus range uses Inconel 800 special-alloy heating elements.

The manufacturer lists this as one of the key technical features of the Arceus electric boiler platform.

Frost Protection

The E.C.A. Arceus includes frost-protection functionality designed to help protect the heating system against low-temperature conditions.

Frost protection does not remove the need for appropriate system design, insulation and installation practices.

Automatic Bypass System

The appliance incorporates an automatic bypass system designed to help protect the boiler and heating circuit under changing flow conditions.

This can be particularly useful in systems where radiator valves or other controls vary the available water flow.

Dual NTC Temperature Control

The Arceus uses a dual NTC system for temperature monitoring and control.

The manufacturer identifies dual NTC control as a feature intended to provide more precise and secure temperature management.

Automatic Filling Loop

The EK 15 MT is equipped with an automatic filling loop, helping manage the heating system’s water pressure according to the appliance’s control system.

Installation and initial system filling should be completed according to E.C.A.’s instructions.

Compact Electric Boiler Design

The E.C.A. Arceus EK 15 MT has a compact wall-mounted format:

Height: 678 mm
Width: 410 mm
Depth: 288 mm
Net weight: approximately 27 kg

The compact dimensions can make the appliance suitable for installations where available wall space is limited. The exact installation clearances must be checked against the current manufacturer’s instructions.

Technical Specifications

The manufacturer’s current ARCEUS information lists 6, 9, 12, 15, 18, 24 and 27 kW capacity options and identifies the 15 kW MT model within the range.

Electrical Supply

Electrical supply requirements depend on the exact Arceus model and configuration.

E.C.A.’s technical documentation identifies the Arceus range as operating across different electrical supply configurations depending on the output rating, including single-phase and three-phase options. The EK 15 kW model should therefore be checked against the exact electrical configuration supplied before installation.

A qualified electrician or heating professional should confirm:

• Available electrical supply
• Phase configuration
• Rated current
• Cable sizing
• Protective devices
• Isolation requirements
• Local electrical regulations

Where Can the E.C.A. Arceus EK 15 MT Be Used?

The 15 kW electric combi boiler can be considered for suitable:

• Houses
• Apartments
• Flats
• Small residential properties
• Renovation projects
• Properties without a gas connection
• Electrically powered heating systems
• New-build heating projects
• Replacement heating systems
• Properties requiring central heating and domestic hot water from one appliance

The correct boiler size should always be determined from the property’s calculated heat loss and domestic-hot-water requirements.

Electric Boiler for Properties Without Gas

One of the key applications for an electric combi boiler is a property where connecting to a gas network is impractical or where an electric heating system is preferred.

The E.C.A. Arceus EK 15 MT does not require gas combustion or a conventional gas flue. However, it does require an appropriately designed electrical supply capable of supporting the appliance.

Electrical capacity should be confirmed before ordering.

E.C.A. Arceus EK 15 MT vs CH Model

The MT model is specifically designed for central heating and domestic hot water.

The Arceus range also includes CH configurations intended for central-heating applications.

Therefore, customers who require both heating and domestic hot water should ensure they are purchasing the correct MT configuration rather than a CH-only version.

E.C.A.’s own documentation distinguishes MT as the model for both central heating and domestic hot water.

E.C.A. Arceus 15 kW vs 18 kW

The Arceus range is available in multiple capacities, including 15 kW and 18 kW.

The 15 kW model provides:

• 15 kW rated heating output
• Approximately 14.9 kW P4 output
• 9.3 L/min DHW flow at ΔT35°C
• L domestic-hot-water load profile

The 18 kW version has a higher rated output and should be considered where the calculated heating demand requires additional capacity.

Boiler selection should be based on heat-loss calculations and hot-water requirements rather than choosing the largest available model.

Is the E.C.A. Arceus EK 15 MT a Combi Boiler?

Yes.

The MT version is an electric combi boiler designed for central heating and domestic hot water.

It combines electric space heating with domestic-hot-water production in one appliance.

How Powerful Is the E.C.A. Arceus EK 15 MT?

The EK 15 MT has a 15 kW rated heat output, with approximately 14.9 kW at rated heating output under the published test conditions.

What Is the  Hot-Water Flow Rate?

The published domestic-hot-water flow rate is approximately 9.3 L/min at a 35°C temperature rise.

Actual flow depends on incoming water temperature, water pressure and selected operating conditions.

Does the E.C.A. Arceus Need a Gas Flue?

No conventional gas combustion flue is required because the Arceus is an electric boiler.

However, the appliance still requires appropriate electrical, heating-system and domestic-water connections according to the manufacturer’s installation instructions.

Does the Arceus EK 15 MT Support OpenTherm?

The Arceus range incorporates OpenTherm technology. Compatibility should be confirmed for the exact thermostat or controller being specified.

Does the E.C.A. Arceus Have Frost Protection?

Yes. Frost protection is one of the listed Arceus features.

Is the E.C.A. Arceus Suitable for Europe?

The Arceus is an E.C.A. electric boiler range with technical documentation covering European regulatory/product-information requirements. The exact electrical supply, installation requirements and product certification should nevertheless be checked for the destination country before purchase.

Professional Installation

The E.C.A. Arceus EK 15 MT should be installed and commissioned by a suitably qualified heating and electrical professional.

Installation should comply with:

• Current E.C.A. installation instructions
• Applicable electrical regulations
• Local building regulations
• Heating-system requirements
• Water-system requirements
• Electrical protection requirements
• Manufacturer-specified clearances
• Destination-country requirements

The installer should confirm the property’s heat loss, electrical supply and domestic-hot-water requirements before commissioning.

Buy E.C.A. Arceus EK 15 MT 15 kW Electric Combi Boiler

The E.C.A. Arceus EK 15 MT 15 kW Electric Combi Boiler is designed for customers looking for an electric heating solution that combines central heating and domestic hot water.

EuroFuelSupply supplies heating equipment for customers, installers and projects across European markets.

When ordering for a project, confirm the required quantity, destination country and electrical configuration so the product can be checked against the installation requirements.

Choose the E.C.A. Arceus EK 15 MT when you require a 15 kW electric combi boiler with central heating, domestic hot water, smart modulation, OpenTherm control and frost protection.