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Ethical brand ratings and accreditation since 2001

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Is Viessmann an ethical and sustainable boiler brand?

Owned by Viessmann Group, a German manufacturer of heating and refrigerating systems, Viessmann is a top-scoring brand.

As it has a top score in The Good Shopping Guide’s Ethical Boilers sector, Viessmann reaches our minimum ethical benchmark and can be classed as an ethical boiler brand.

Because Viessmann already has an excellent score, it is eligible for Ethical Accreditation.  All Viessmann needs to do is get in touch with us and apply. After we receive its application, The Good Shopping Guide will provide Viessmann with the use of our ethical mark.

Would you like to find out how other boiler brands compare against Viessmann within the Ethical Boilers sector? Visit The Good Shopping Guide’s Boilers Ethical Ratings Table.  From our Ratings Table, you can gain learn more about the criteria that a brand must fulfil in order to reach our minimum ethical benchmark.

All brands are urged by The Good Shopping Guide to take inspiration from our top-rated brands such as Viessmann and adopt more ethical and sustainable practices.

What makes Viessmann such an ethical and sustainable brand?

As a brand with an excellent score, Viessmann receives a top rating in all of our categories. These include Other criticisms, Human Rights and Animal Welfare due to a lack of negative records.

Additionally, Viessmann has a recent Climate Report which contains several carbon emissions targets, as well as the goal of becoming Net Zero by 2050.

What can Viessmann do to improve its score? 

Viessmann’s above benchmark score within The Good Shopping Guide’s Ethical Boilers sector is the outcome of an assessment of a variety of ethical criteria.

Since Viessmann has already met our minimum ethical benchmark in the Ethical Boilers sector, The Good Shopping Guide encourages it to contact us and apply for Ethical Accreditation. By getting in touch and applying, Viessmann will be offered the use of The Good Shopping Guide ethical mark.

Were you aware that your brand could benefit from Ethical Accreditation? Brands accredited by The Good Shopping Guide can display our ethical mark, showcasing to consumers that it is an ethical and sustainable brand.

If you’re interested in learning more about how to attain Ethical Accreditation, please get in touch with us or complete a Free Initial Assessment form.

Ethical performance in category


GSG score


GSG category benchmark


Ethical Rating


  • Environmental Report


  • Nuclear Power


  • Fossil Fuels



  • Animal Welfare



  • Armaments


  • Political Donations


  • Human Rights



  • Ethical Accreditation


  • Other Criticisms


= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating