# The Electricity and Gas (Energy Company Obligation) Order 2014, Article 21: Determining the cost score for a gas fuelled qualifying boiler replacement


The cost score for the replacement of a qualifying boiler by another boiler, where both the boiler being replaced and the replacement boiler are fuelled by mains gas, must be determined by reducing the amount calculated in accordance with article 20 by 20 per cent.

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Source: https://www.legislation.gov.uk/ukdsi/2014/9780111122297/article/21 (the official version)
Page: https://openlegislation.uk/draft-electricity-and-gas-energy-company-obligation-order-2014/article-21
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.