Spares Search and Shopping

Spares Searching and Shopping

To check availability:

  • Call 0333 1231233 or
  • eMail with a list of your requirements.
  • Contents.

    Searching for a Spare Part
    Secure Payment
    Gas Boiler & Gas Parts sales


      Goods sold by Viessmann Direct are intended for use in Great Britain (GB); therefore any warranty is null and void if used outisde of GB.
    • Our website is open 24 hours a day, 365 days a year for shopping.
    • Office hours are generally from 9am to 5pm Monday to Friday, excluding public holidays.
    • Subject to availability, we only ship goods on business days.
    • Anything ordered over a weekend or bank holiday is picked, packed and shipped the next working day for delivery normally within 48 hours (depending on delivery location).
    • Order cut off for next day delivery is 12:00pm for boilers and palleted products (subject to availability).
    • Order cut off time for spares and parcel sized products is 3pm Monday to Thursday.
    • Stock taking normally occurs on the last day monthly, or last Friday of the month if it falls on a weekend; cut off is 12pm for pallets and spares on stock-taking days.
    • Multi-item orders are shipped when all items are available (See Split Deliveries in Deliveries information section).

    Searching for a Spare Part.

    Part number known.

    • If you already know the part number, enter it in the 'Search' box at the top of the page and click search, the product will then be displayed.
    • Please note, product images are for illustration purposes only and may not be an exact representation of the product.

    Part number not known.

    If you don’t know the part code, you should search using the 'Search' box at the top of the page.

    • Enter the first seven digits of the boiler serial number (normally found on the top of the boiler casing near to the flue tower). Click search, this will take you to the Boiler Diagram page.
    • Spares Searching and Shopping
    • Confirm it’s the correct boiler by checking the description and then look for the part required. To change the diagram click on a diagram thumbnail.
    • When you've found the part on the diagram hover over the part number until it turns red and then click on it; a red shopping trolley will appear, just click on the red trolley to add the item to your shopping basket.
    • Confirm it’s the correct part by clicking on the image for the full description and list of boiler the part fits.
    • Please note, product images are for illustration purposes only and may not be an exact representation of the product.

    By Description.

    • Enter the part description in the 'Search' box at the top of the page.
    • This method may result in several items with the same description.
    • Click on the part image and confirm its the correct part for your boiler by checking the product information and 'This Products Fits' list. If in doubt please call for assistance.
    • Please note, product images are for illustration purposes only and may not be an exact representation of the product.




    We invest in our own virtual warehousing and hold a range of stock to support domestic and commercial products.

    • Stock indicators are real-time, showing the quantity of stock held.
    • Out of stock items are normally indicated as 'call for availability.'
    • If an item is noted as 'call for availability' or you require more than the stock level indicated, lead-time to delivery can be anything from next day to 10 working days, depending on stock levels at the main UK hub. Call us for specific availability.


    Secure Payment.


  • It is our top priority to ensure customers’ transaction data is kept secure at all times.
  • Opayo (formerly Sage Pay) is a payment service provider (PSP) to whom thousands of businesses outsource their transaction security.
  • When buying through Viessmann Direct you can be sure you are completely protected with Opayo.
  • Viessmann Direct is compliant with industry standard PCI DSS security policies
  • We accept American Express, Mastercard and Visa credit/debit cards.
  • Screening & Security.

  • Opayo uses a range of secure methods such as fraud screening, IP address blocking and 3D secure.
  • During the payment process you will be redirected to Opayo's (Sage Pay) payment portal.
  • All sensitive data is secured using the same internationally recognised 256-bit encryption standards used by, among others, the US Government.
  • The encryption keys are held on state-of-the-art, tamper proof systems in the same family as those used to secure VeriSign's Global Root certificate, making them all but impossible to extract.
  • The data held is extremely secure and Opayo are regularly audited by the banks and banking authorities to ensure it remains so.
  • Checks & Compliance.

  • Opayo's systems are scanned quarterly by Payment Card Industry Data Security Standards (PCI DSS)which are an independent Qualified Security Assessor (QSA) and an Approved Scanning Vendor (ASV) for the payment card brands.
  • Opayo is also audited annually under the Payment Card Industry Data Security Standards (PCI DSS) and is a fully approved Level 1 payment services provider, which is the highest level of compliance.
  • Session Encryption.

  • You know your session is in a secure encrypted environment when you see https:// in the web address bar, and/or when you see the locked padlock symbol alongside the URL.
  • Security Standards Council.

  • Opayo (formerly Sage Pay) is an active member of the PCI Security Standards Council (PCI SSC) that defines card industry global regulation.
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    Gas Boiler & Gas Parts Sales.

  • In GB law it is the responsibility of the customer to make certain gas boilers are installed by a Gas Safe Registered Engineer.
  • Any gas work undertaken on a gas appliance must be carried out by a Gas Safe Registered Engineer.
  • For further guidance see Gas Safe - The Law Gas Safe - The Law
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  • All prices displayed on this website include Value Added Tax. VAT is identified on a separate line in the 'Shopping Basket.'
  • Net trade prices are displayed to account customers when logged into their trade account.
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    Viessmann Shopping dept

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