Countryfile presenter Tom Heap voiced his concerns over the use of patio heaters used at restaurants. It comes after the on-screen journalist recently made a startling discovery.The BBC favourite took to social media and shared his frustration after he spotted a patio heater on full blast outside a restaurant in Central London but there were no customers in the seating area.The 55-year-old, who is a keen advocate for climate change, urged people to wear warmer clothes rather than burn gas.In view of his 12,000 followers, Tom uploaded a video that showed the empty eating area.He began: "There is a lot of talk about high energy prices but take a look at this in a restaurant in Central London."The on-screen broadcaster panned the camera across.