
How will we heat homes in zero carbon Britain?
Getty ImagesWhen it comes to winter warming, you can't beat gas central heating. It's been keeping us cosy for more than half a century.But when your beloved boiler packs up, be prepared for a change - because gas heating can't play a part in zero carbon Britain.At some date in the future, you will need to install clean heating. And be warned - it won't always be cheap, or convenient.What's more, we'll have to radically improve insulation, too, because some of the new-style kit can't heat the UK's cold, draughty houses.There are two main contenders for the £28bn market to heat our homes - hydrogen and heat pumps.Hydrogen - is that the future of heating?Hydrogen is the most talked-about candidate to replace the gas boiler. Hydrogen can be extracted from water using electrolysis, in a proces