AMBIRAD STHTX75A HEAT EXCHANGER ALUMINISED STEEL 300 (36

  • Our Part No: 4421330
  • MPN: STHTX75A

We're sorry but this product has now been discontinued by Ambirad and can no longer be purchased.

No known replacement is available.

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  • 12 Month Warranty
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AMBIRAD STHTX75A HEAT EXCHANGER ALUMINISED STEEL 300 (36.

Product Information: There are 2 types of heat exchanger that can be within your heating unit, the primary heat exchanger and the secondary heat exchanger. The primary is present in almost all boilers and it allows the transfer of heat from the burner to the water within the system. The secondary heat exchanger is exclusive to combination boilers and allows the heat to be transferred between 2 closed systems.

We only have this part as fitting one appliance, The Ambirad ST300 (SN STARTS ST2) . If this isn't the model you have, please contact us before ordering. This way we can check if this part is compatible. In the next tab there is an appliance grid with a link to the Ambirad ST300 (SN STARTS ST2) , Please follow this link to view all parts available for that model.

We recommend that all parts are fitted by a fully qualified gas safe certified plumber. If you require any help finding a part, please feel free to contact us. Collectively we have over 200 years of boiler spares knowledge and distribution experience and our friendly call centre staff will be happy to help you with any query you may have

The AMBIRAD STHTX75A HEAT EXCHANGER ALUMINISED STEEL 300 (36 is a genuine, brand new Ambirad product, covered by a Ambirad manufacturer's guarantee.

Not what you're looking for? Try our unique Spares Finder tool or you can view all Ambirad products.

For advice on this or any product, please call us on 0330 123 3707, email us at web@dhsspares.co.uk, or see additional ways to contact us here.

This part fits the following 1 appliances (sorted alphabetically):

May fit others. If you are unsure of your product model, or would like more information, please contact us.

At DHS we offer a range of product options to suit different budgets and requirements, while maintaining quality and reliability across all categories.

Below is an explanation of each product type available on our website. Please note that not all products will have all options available.

Unbranded Part

BEST VALUE

Unbranded Component Product. Genuine manufacturer component, but no branded packaging.

  • Sourced Directly from the Manufacturer
  • Supplied in Unbranded Packaging
  • Same Quality & Function as OEM Version
  • Cost Effective Alternative
  • 12 Month Warranty

Branded Part

ORIGINAL PART

Original Equipment Manufacturer Component with branded packaging.

  • Genuine Original Part
  • Sourced Directly from the Manufacturer
  • Manufacturers Official Packaging
  • Trusted Manufacturer Quality
  • 12 Month Warranty

Alternative Part

Compatible replacement parts sourced from a third party Manufacturer.

  • Lower Cost Replacement Option
  • Fully Functional Alternative
  • Appearance, design or materials may differ from the original part
  • 12 Month Warranty

Refurbished Part

Original OEM components that have been professionally refurbished.

  • Genuine OEM Component Professionally Refurbished and Tested
  • Environmentally Conscious Choice
  • Excellent Value for Money
  • 12 Month Warranty

Need Help Choosing?

If you are unsure of which product category is right for your repair or installation, our team is happy to help.

Contact us for expert advice on compatibility, pricing and availability.

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