This fits the following boilers:

Please note: Before placing your order you must check your part matches the Manufacturer Part Number stated above.

Meanwhile, if you are looking for any Vaillant-related products please click the link: Vaillant Spares

Also, for Diverter valves for vaillant please click the link: Vaillant Diverter Valves

You can also check our whole range of PCBs for vaillant please click the link: Vaillant PCBS

Here is also the list of Pumps for Vaillant please click the link: Vaillant Pump

In case you are looking for Fans for Vaillant please click the link:Vaillant Fans

     Prices: Please note all prices are inclusive of VAT.

At Heating and catering parts,

We certainly strive to provide the best possible customer experience. Consequently, we understand that sometimes a product may not meet your expectations or requirements. That is why we offer a comprehensive 30-day return policy to ensure your satisfaction. Please read our full Return Policy

We appreciate you buying from our store. Usually, If your order is received by 1:00 p.m. EST (Monday–Friday), we will ship the item the same day. You can count on us to deliver quickly and safely. In other words, we take pride in our prompt and trustworthy service and will do everything we can to ensure the safe arrival of your package. Please note that weekends are not included in our next-day delivery guarantee. Delivery for orders placed on Fridays (the next day) is on the following Monday. At the same time select the Saturday delivery option at checkout if you’d like your purchases delivered on a weekend day.

In a word thank you for choosing us!

Frequently Asked Questions

1. What boilers is the Vaillant Time Switch Digital Thermostat compatible with?

The thermostat fits a wide range of Vaillant boilers including Turbomax Plus 824E, 828E, 837E, and Ecomax 824/2E, 824E, 828/2E, 828E, 835E models. It is designed to plug directly into all current Vaillant combination boilers.

2. Is this a new or refurbished part?

This is a seller-refurbished part. It has been fully tested to ensure reliable performance and comes with a 12-month warranty. Minor cosmetic marks may be present due to previous use.

3. How does the 24-hour analogue timer work?

The thermostat allows you to set a 24-hour schedule for your central heating system, giving you precise control over when your heating turns on and off throughout the day.

4. Do I need to check my boiler model before ordering?

Yes. Always verify that your boiler matches the manufacturer part number (MPN 306741) and the compatible models listed to ensure proper fit and functionality.

5. What is the warranty period for this time switch?

All refurbished Vaillant Time Switch Digital Thermostats come with a 12-month warranty covering defects in refurbishment or functionality.