As the temperatures soar in the summers, prominent Texas real estate developer Marcus Hiles advises four tips to tenants and homeseekers to decrease their energy bills. As Chairman and CEO of Western Rim Property Services, Hiles follows these energy saving tips in every home he develops. He recommends windows with a solar heat gain coefficient of 0.22 to 0.24, such as the Cascade Low E Argon Gas Win Pro Series. As heat begins to transfer, old windows from the 1980s lose up to 100 times more energy when compared to a fully insulated solid wall. While older casements, transoms, and sliders are eye-catching, having modern windows and frames prevent air as well as energy leaks, cutting your heat loss by 75%, says Hiles.