(Trent Nelson | The Salt Lake Tribune) We're going to the home of Roger Graham in Hooper. He built the house two years ago, and he decided not to run natural gas lines to the house. Instead he relies on electrical heat pumps, which cool the house in summer and heat the house in winter. Roger will be there to show us how they work. They're just boxes that sit outside the house. They look similar to air conditioning compressors on Friday, April 29, 2022.(Trent Nelson | The Salt Lake Tribune) Roger Graham heats his Hooper home with an electrical heat pump system, on Friday, April 29, 2022.(Trent Nelson | The Salt Lake Tribune) Roger Graham reaches up to feel the flow of hot air coming from the electrical heat pump system in his Hooper home on Friday, April 29, 2022.