Stelrad sanitary radiator ACCORD Type 20 600x400 mm 412 W, model AV20/60/040

Stelrad ACCORD Type 20 sanitary radiator (600x400 mm) is a double-panel convector radiator engineered for central heating systems. With a declared heat output of 412 W under standard test conditions, this model provides steady convective heating and fast response times suitable for compact sanitary areas. The radiator is designed for wall mounting and combines a slim profile with convector fins to increase heat transfer while occupying minimal space.

Advantages

The double-panel construction with integrated convector fins increases surface area and enhances heat output compared with a single-panel unit of similar dimensions. Its compact dimensions and wall-mounted design make installation straightforward in bathrooms, utility rooms and corridors where floor space is limited. The radiator’s steel construction offers consistent thermal performance and compatibility with standard central heating systems.

Suitable for

• Bathrooms and shower rooms requiring efficient wall-mounted heating
• Utility rooms, laundries and boiler rooms with limited floor area
• Corridors, entryways and secondary rooms in residential or commercial buildings

When it may not be suitable

This radiator is sized for small to medium sanitary spaces; it may not provide sufficient output for large open-plan areas or rooms with significant heat loss. It is intended for use in central heating systems and requires compatible pipe connections and adequate system water temperature to achieve the declared output.

Key specifications

• Type: Double-panel convector (Type 20)
• Height x Width: 600 mm x 400 mm
• Declared heat output: 412 W (standard test conditions)
• Orientation: Wall-mounted
• Material: Steel panels with convector fins
• Connection compatibility: Standard central heating pipe connections

How to use

Mount the radiator on a suitable load-bearing wall using appropriate brackets and fixings for the wall type. Connect to the central heating supply and return pipes following local plumbing regulations and ensure the system is flushed and filled correctly before commissioning. Bleed the radiator to remove trapped air and balance the system to achieve even heat distribution. Regularly check valves and brackets for secure fit and perform routine system maintenance as recommended by the heating system manufacturer.

What to consider before purchase

• Measure available wall space and confirm the radiator dimensions (600 x 400 mm) match the installation site
• Verify the required heat output for the room using a heat loss calculation to ensure 412 W is adequate
• Ensure compatibility with existing central heating pipework and valve types
• Confirm wall construction can support the mounted weight and that appropriate fixings are available

Usage recommendations

For reliable operation, use with a properly balanced central heating system and maintain correct system water quality. Install thermostatic or manual valves as needed to control room temperature and improve energy efficiency.