Boilers: Ethical Comparison Ratings Table
Central heating accounts for 40% of total energy consumption in the United Kingdom. As a result, it’s critical to heat your home with an eco-friendly boiler. Read our guide to determine which boiler brand is right for you.
Benchmark score within the category
Boilers: Ethical Comparison Ratings Table
![Good shopping guide ethical accreditation tick](jpg/090619fc-c2aa-4306-a7f8-18ee59857fff-scaled.jpg)
Baxi
![](png/accreditioncross3860.png)
Baxi Ethical Rating
Parent company: BDR Thermea Group
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
Environment
-
Environmental Report
Good
-
Nuclear Power
Good
-
Fossil Fuels
Good
Animal
-
Animal Welfare
Good
People
-
Armaments
Good
-
Political Donations
Good
-
Human Rights
Good
Other
-
Ethical Accreditation
Poor
-
Other Criticisms
Good
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
![Good shopping guide ethical accreditation tick](jpg/090619fc-c2aa-4306-a7f8-18ee59857fff-scaled.jpg)
Glow-Worm
![](png/accreditioncross3860.png)
Glow-Worm Ethical Rating
Parent company: Vaillant GmbH
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
Environment
-
Environmental Report
Good
-
Nuclear Power
Good
-
Fossil Fuels
Good
Animal
-
Animal Welfare
Good
People
-
Armaments
Good
-
Political Donations
Good
-
Human Rights
Good
Other
-
Ethical Accreditation
Poor
-
Other Criticisms
Good
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
![Good shopping guide ethical accreditation tick](jpg/090619fc-c2aa-4306-a7f8-18ee59857fff-scaled.jpg)
Heatrae Sadia
![](png/accreditioncross3860.png)
Heatrae Sadia Ethical Rating
Parent company: BDR Thermea Group
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
Environment
-
Environmental Report
Good
-
Nuclear Power
Good
-
Fossil Fuels
Good
Animal
-
Animal Welfare
Good
People
-
Armaments
Good
-
Political Donations
Good
-
Human Rights
Good
Other
-
Ethical Accreditation
Poor
-
Other Criticisms
Good
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
![Good shopping guide ethical accreditation tick](jpg/090619fc-c2aa-4306-a7f8-18ee59857fff-scaled.jpg)
Main
![](png/accreditioncross3860.png)
Main Ethical Rating
Parent company: BDR Thermea Group
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
Environment
-
Environmental Report
Good
-
Nuclear Power
Good
-
Fossil Fuels
Good
Animal
-
Animal Welfare
Good
People
-
Armaments
Good
-
Political Donations
Good
-
Human Rights
Good
Other
-
Ethical Accreditation
Poor
-
Other Criticisms
Good
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
![Good shopping guide ethical accreditation tick](jpg/090619fc-c2aa-4306-a7f8-18ee59857fff-scaled.jpg)
Vaillant
![](png/accreditioncross3860.png)
Vaillant Ethical Rating
Parent company: Vaillant GmbH
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
Environment
-
Environmental Report
Good
-
Nuclear Power
Good
-
Fossil Fuels
Good
Animal
-
Animal Welfare
Good
People
-
Armaments
Good
-
Political Donations
Good
-
Human Rights
Good
Other
-
Ethical Accreditation
Poor
-
Other Criticisms
Good
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
![Good shopping guide ethical accreditation tick](jpg/090619fc-c2aa-4306-a7f8-18ee59857fff-scaled.jpg)
Viessmann
![](png/accreditioncross3860.png)
Viessmann Ethical Rating
Parent company: Viessmann Group
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
Environment
-
Environmental Report
Good
-
Nuclear Power
Good
-
Fossil Fuels
Good
Animal
-
Animal Welfare
Good
People
-
Armaments
Good
-
Political Donations
Good
-
Human Rights
Good
Other
-
Ethical Accreditation
Poor
-
Other Criticisms
Good
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
![Good shopping guide ethical accreditation tick](jpg/090619fc-c2aa-4306-a7f8-18ee59857fff-scaled.jpg)
Grant
![](png/accreditioncross3860.png)
Grant Ethical Rating
Parent company: Grant Engineering (UK) Ltd
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
Environment
-
Environmental Report
Acceptable
-
Nuclear Power
Good
-
Fossil Fuels
Good
Animal
-
Animal Welfare
Good
People
-
Armaments
Good
-
Political Donations
Good
-
Human Rights
Good
Other
-
Ethical Accreditation
Poor
-
Other Criticisms
Good
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
![](jpg/untitled-16-august-2022-11.47-scaled.jpg)
Alpha
![](png/accreditioncross3860.png)
Alpha Ethical Rating
Parent company: AlphaTherm Ltd
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
Environment
-
Environmental Report
Poor
-
Nuclear Power
Good
-
Fossil Fuels
Good
Animal
-
Animal Welfare
Good
People
-
Armaments
Good
-
Political Donations
Good
-
Human Rights
Good
Other
-
Ethical Accreditation
Poor
-
Other Criticisms
Good
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
![](jpg/untitled-16-august-2022-11.47-scaled.jpg)
Ariston
![](png/accreditioncross3860.png)
Ariston Ethical Rating
Parent company: Ariston Holding N.V.
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
Environment
-
Environmental Report
Poor
-
Nuclear Power
Good
-
Fossil Fuels
Good
Animal
-
Animal Welfare
Good
People
-
Armaments
Good
-
Political Donations
Good
-
Human Rights
Good
Other
-
Ethical Accreditation
Poor
-
Other Criticisms
Good
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
![](jpg/untitled-16-august-2022-11.47-scaled.jpg)
Biasi
![](png/accreditioncross3860.png)
Biasi Ethical Rating
Parent company: Biasi UK Ltd
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
Environment
-
Environmental Report
Poor
-
Nuclear Power
Good
-
Fossil Fuels
Good
Animal
-
Animal Welfare
Good
People
-
Armaments
Good
-
Political Donations
Good
-
Human Rights
Good
Other
-
Ethical Accreditation
Poor
-
Other Criticisms
Good
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
![](jpg/untitled-16-august-2022-11.47-scaled.jpg)
Ferroli
![](png/accreditioncross3860.png)
Ferroli Ethical Rating
Parent company: Ferroli S.p.A.
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
Environment
-
Environmental Report
Poor
-
Nuclear Power
Good
-
Fossil Fuels
Good
Animal
-
Animal Welfare
Good
People
-
Armaments
Good
-
Political Donations
Good
-
Human Rights
Good
Other
-
Ethical Accreditation
Poor
-
Other Criticisms
Good
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
![](jpg/untitled-16-august-2022-11.47-scaled.jpg)
Ideal
![](png/accreditioncross3860.png)
Ideal Ethical Rating
Parent company: Groupe Atlantic
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
Environment
-
Environmental Report
Poor
-
Nuclear Power
Good
-
Fossil Fuels
Good
Animal
-
Animal Welfare
Good
People
-
Armaments
Good
-
Political Donations
Good
-
Human Rights
Good
Other
-
Ethical Accreditation
Poor
-
Other Criticisms
Good
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
![](jpg/untitled-16-august-2022-11.47-scaled.jpg)
Johnson & Starley
![](png/accreditioncross3860.png)
Johnson & Starley Ethical Rating
Parent company: Johnson & Starley Ltd
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
Environment
-
Environmental Report
Poor
-
Nuclear Power
Good
-
Fossil Fuels
Good
Animal
-
Animal Welfare
Good
People
-
Armaments
Good
-
Political Donations
Good
-
Human Rights
Good
Other
-
Ethical Accreditation
Poor
-
Other Criticisms
Good
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
![](jpg/untitled-16-august-2022-11.47-scaled.jpg)
Keston
![](png/accreditioncross3860.png)
Keston Ethical Rating
Parent company: Groupe Atlantic
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
Environment
-
Environmental Report
Poor
-
Nuclear Power
Good
-
Fossil Fuels
Good
Animal
-
Animal Welfare
Good
People
-
Armaments
Good
-
Political Donations
Good
-
Human Rights
Good
Other
-
Ethical Accreditation
Poor
-
Other Criticisms
Good
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
![](jpg/untitled-16-august-2022-11.47-scaled.jpg)
Ravenheat
![](png/accreditioncross3860.png)
Ravenheat Ethical Rating
Parent company: Ravenheat Manufacturing Ltd
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
Environment
-
Environmental Report
Poor
-
Nuclear Power
Good
-
Fossil Fuels
Good
Animal
-
Animal Welfare
Good
People
-
Armaments
Good
-
Political Donations
Good
-
Human Rights
Good
Other
-
Ethical Accreditation
Poor
-
Other Criticisms
Good
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
![](jpg/untitled-16-august-2022-11.47-scaled.jpg)
Sime
![](png/accreditioncross3860.png)
Sime Ethical Rating
Parent company: Sime S.p.A.
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
Environment
-
Environmental Report
Poor
-
Nuclear Power
Good
-
Fossil Fuels
Good
Animal
-
Animal Welfare
Good
People
-
Armaments
Good
-
Political Donations
Good
-
Human Rights
Good
Other
-
Ethical Accreditation
Poor
-
Other Criticisms
Good
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
![](jpg/untitled-16-august-2022-11.47-scaled.jpg)
Vokera
![](png/accreditioncross3860.png)
Vokera Ethical Rating
Parent company: Carrier Global Corporation
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
Environment
-
Environmental Report
Good
-
Nuclear Power
Good
-
Fossil Fuels
Good
Animal
-
Animal Welfare
Good
People
-
Armaments
Good
-
Political Donations
Poor
-
Human Rights
Good
Other
-
Ethical Accreditation
Poor
-
Other Criticisms
Good
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
![](jpg/untitled-16-august-2022-11.47-scaled.jpg)
Intergas
![](png/accreditioncross3860.png)
Intergas Ethical Rating
Parent company: Paloma Rheem Global Inc.
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
Environment
-
Environmental Report
Poor
-
Nuclear Power
Good
-
Fossil Fuels
Good
Animal
-
Animal Welfare
Good
People
-
Armaments
Good
-
Political Donations
Acceptable
-
Human Rights
Good
Other
-
Ethical Accreditation
Poor
-
Other Criticisms
Good
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
![](jpg/untitled-16-august-2022-11.47-scaled.jpg)
Worcester Bosch
![](png/accreditioncross3860.png)
Worcester Bosch Ethical Rating
Parent company: Robert Bosch GmbH
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating
Environment
-
Environmental Report
Good
-
Nuclear Power
Good
-
Fossil Fuels
Good
Animal
-
Animal Welfare
Good
People
-
Armaments
Good
-
Political Donations
Poor
-
Human Rights
Poor
Other
-
Ethical Accreditation
Poor
-
Other Criticisms
Poor
= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating