gas boiler and replace it with the electric alternative for heating your home, a heat pump. they are more climate friendly than gas and don't depend on supplies from, ahem, despotic dictators. there you go, what do you think? wow! ok, yeah. i thought it might be wider than that, i don't know why. but, yeah, it looks really smart. they are not the most exciting things, are they? yeah, no, but it's got an importantjob to do. yeah, it certainly has. heating and hot water accounts for around 80% of the energy we use in our homes, and the government hopes that by 2028, in six years' time, 600,000 of us will be switching to heat pumps every year. so what is so great about them? well, the basic law of the universe is that heat flows from a hot thing to a cold thing. and so if we're going to actually