Environmental campaigners are all agreed that gas condensing boilers (GCBs) are the best technological choice for most people. This is because they operate at about 90 per cent efficiency, compared to only 70 per cent efficiency for the more common, and cheaper, non-condensing boilers.
Read MoreInstalling a heat pump is likely to require other changes to your house. Firstly, they do produce less heat, so the house needs to be well insulated. Secondly, most heat pumps are at their most efficient when they heat radiator water to 35-45 degrees, as opposed to the 65-80 degrees normal with gas boilers.
Read MoreEthical Accreditation is designed to support ethical companies' reputations and sales by clearly showing that the company is independently endorsed by The Good Shopping Guide. The logo can be displayed on product packaging, websites, advertising, press releases and stationery so that people can easily identify the most ethical companies.
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