ECA Arceus 12kW Electric Combi Boiler (Single Phase / Three Phase)

Experience the next generation of electric heating with the ECA Arceus 12kW Electric Combi Boiler. Designed and manufactured by one of Europe’s leading heating manufacturers, the Arceus combines premium components, intelligent controls and outstanding reliability to deliver efficient central heating and instantaneous domestic hot water from one compact wall-mounted appliance.

Ideal for apartments, flats and well-insulated homes, the Arceus 12kW provides powerful performance without the need for a gas supply, flue or annual Gas Safe inspections. With silent operation, advanced safety protection and WRAS approval, it is engineered for both installers and homeowners who demand quality.

Key Features

• 12kW Electric Combi Boiler

• Provides Central Heating & Instantaneous Domestic Hot Water

• Available for 230V Single Phase or 400V Three Phase Installation

• WRAS Approved

• OpenTherm Compatible

• Stainless Steel Heat Exchanger Tank

• 8 Litre Expansion Vessel Built In

• High Efficiency Electric Heating

• Silent Operation (Approx. 38 dB)

• Built-in Circulation Pump

• Automatic Air Vent

• Frost Protection Function

• Pump Anti-Seizure Protection

• Overheat & Pressure Protection Systems

• LCD Digital Display with Fault Diagnostics

• Compact Wall Mounted Design

• Suitable for Radiator & Underfloor Heating Systems

• CE & UKCA Compliant

• 3 Year Manufacturer’s Parts & Labour Warranty

Premium Engineering

The Arceus has been developed using high-quality European components to provide exceptional reliability and ease of servicing. The stainless steel heating tank and durable heating elements are designed for long service life, while intelligent electronic controls constantly monitor system performance for maximum safety and efficiency.

Perfect For

• Apartments & Flats

• New Build Properties

• Off-Gas Homes

• Renovation Projects

• Commercial Offices

• Holiday Homes

• Properties where a gas connection is unavailable

Technical Specification

Brand: ECA

Model: Arceus EK 12 MT

Boiler Type: Electric Combi Boiler

Power Output: 12kW

Voltage: 230V Single Phase or 400V Three Phase

Nominal Current:

• 52A (Single Phase)

• 17A (Three Phase)

Dimensions:

Height: 678 mm

Width: 410 mm

Depth: 288 mm

Weight: 27 kg

Expansion Vessel: 8 Litres

Maximum Domestic Hot Water Flow: 7 L/min

Central Heating Temperature: 30°C–80°C

Underfloor Heating Temperature: 30°C–45°C

Domestic Hot Water Temperature: 30°C–65°C

Protection Rating: IPX4D

Safety Features

✔ Overheat Protection

✔ Low Water Pressure Protection

✔ High Water Pressure Protection

✔ Automatic Frost Protection

✔ Pump Anti-Sticking Function

✔ Automatic Air Vent

✔ Electronic Fault Diagnosis System

✔ Pressure Relief Valve

What’s Included

• ECA Arceus 12kW Electric Combi Boiler

• Installation & User Manual

• Wall Mounting Bracket

• Fixing Kit

• Isolation Valve Kit

• WRAS Approved Filling Loop

• Gaskets & Installation Accessories

Why Choose ECA?

With over 70 years of engineering excellence, ECA manufactures heating products that are trusted in more than 100 countries worldwide. Every Arceus boiler is built to exacting standards, combining innovative technology, premium materials and rigorous quality control to deliver dependable heating for years to come.

Fast UK Dispatch • Secure Packaging • Expert Technical Support Available