Heating accounts for a third of emissions in the UK, meaning we have to ditch our favourite fuel, gas. The Government's alternative? The heat pump. But despite installations being on the rise, the UK is much behind it's European neighbours on the number of heat pumps being installed each year. So why are we so slow? Is it the price, reluctance to change - or do heat pumps have a bad name?On this week's ClimateCast Tom Heap finds out the truth about heat pumps. He debunks some myths, sees one being installed, and meets a customer who recently made the change. He speaks to Mike Foster from energy and utilities alliance about why he believes heat pumps aren't the only option - as well as Lord Callanan about the misinformation surrounding heat pumps.Producer: Emma Rae Woodhouse