Vaillant EcoTec Plus 435 35kW Heat Only Boiler - 10015674

Name: Vaillant EcoTec Plus 435 35kW Heat Only Boiler - 10015674
Brand: Vaillant
SKU: mhwxm5k5uc
Price: 2353.20 GBP
Availability: InStock

The Vaillant eco TEC plus 400 high efficiency heat only series is one of the most compact and vers...

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Vaillant ecoTEC Plus 435 Open Vent Boiler 35kW for Central Heating Systems

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Product Information

Full details

This guide is designed for homeowners and heating engineers looking to understand and effectively utilize the Vaillant EcoTec Plus 435 35kW Heat Only Boiler. This compact and efficient boiler offers high performance and ease of use, making it ideal for upgrading traditional open-vented heating systems. However, be aware that while it is designed for efficiency, it requires professional installation and regular maintenance to ensure optimal performance.

All features

Model Part Number	10015674
Brand	Vaillant

Extended Product Information

FAQs

What is the warranty period?

The boiler comes with a 5-year guarantee, extendable to 10 years when registered through Vaillant Advance and fitted with a Vaillant branded filter.

Where can I find the boiler's user manual?

The user manual is provided with the boiler at the time of purchase. You can also download it from the Vaillant website.

Can I install the boiler myself?

No, the Vaillant EcoTec Plus 435 must be installed by a Gas Safe registered engineer.

How often should I have the boiler serviced?

It is recommended to have the boiler serviced annually by a qualified heating engineer.

What type of heating system is this boiler compatible with?

The Vaillant EcoTec Plus 435 is designed for use with open-vented heating systems.

What should I do if the boiler displays an error code?

Refer to the boiler's user manual to identify the error code and follow the recommended troubleshooting steps. If the problem persists, contact a Gas Safe engineer.

Can I use a smart thermostat with this boiler?

Yes, the Vaillant EcoTec Plus 435 is compatible with various smart thermostats, including Vaillant's vSMART™ app.

What is the size of the boiler?

The dimensions are 600 x 375 x 320mm (HxWxD).

Troubleshooting

Boiler not starting

Check the gas supply, power supply, and ensure the system pressure is correct. Consult a Gas Safe engineer if the issue persists.

Poor heating performance

Check the system pressure, ensure radiators are bled, and inspect for any blockages. Consider a system flush and consult with a heating engineer if issues persist.

Error codes on the display

Refer to the boiler's manual for specific error code meanings and troubleshooting steps. Contact a qualified engineer if the problem is not resolved.

Water leaks

Turn off the boiler and contact a Gas Safe registered engineer immediately to address the leak.

Pros and Cons

Pros

High performance and efficiency.
Compact size suitable for various installation locations.
User-friendly with a straightforward display.
Compatible with a wide range of heating controls, including smart home options.
Extended warranty available for added peace of mind.

Cons

Requires professional installation.
May require additional components for installation in some systems.
Regular maintenance is needed to maintain efficiency and longevity.
Specific compatibility is required with Vaillant branded components to extend warranty.
Open vent system may not be suitable for all home layouts.

Setup, Compatibility & Care

Setup:

Professional Installation: The Vaillant EcoTec Plus 435 must be installed by a Gas Safe registered engineer.
System Compatibility: Ensure compatibility with your existing open-vented heating system. Check the system's specifications to ensure the boiler is appropriate for your needs.
Flue Installation: Choose the appropriate flue option (rear or top) based on your installation location.
Control System Integration: Connect the boiler to your desired control system (thermostat, smart app, etc.).

Compatibility:

The boiler is compatible with Vaillant's full range of flues and control systems. Ensure components are Vaillant-branded if you intend to take advantage of the extended warranty. It is designed for open-vented systems and may require modifications to work with other system types.

Care:

Annual Servicing: Arrange for annual servicing by a qualified engineer to maintain efficiency and safety.
Pressure Checks: Regularly check the system pressure as recommended in the user manual.
Cleaning: Keep the area around the boiler clean and free from obstructions.
Filter Maintenance: If a Vaillant filter is installed, follow the manufacturer's instructions for cleaning or replacement.