As the summer heats up, well-known Texas real estate investor Marcus Hiles notes four simple tricks that will allow apartment hunters and homebuyers to dramatically lower their energy bills. As CEO of Western Rim Property Services, Hiles follows his own guidance, employing each energy saving procedure in every apartment and house he builds. He recommends windows with a solar heat gain factor of 0.22 to 0.24, similar to the Cascade Low E Argon Gas Win Pro Series. With excessive heat transfer, old windows from the 1980s lose up to 100 times more heat than a wholly insulated solid wall. “While older casements, transoms, and sliders are beautiful, having the newest windows and frames prevents air and energy leakage, cutting your heat loss by 75 percent,” Hiles states.