(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.