Samsung Series DV90T8240SX/YL OptimalDry Heat Pump Tumble Dryer with with heat pump technology. Heat pump technology is the way forward for drying your laundry more efficiently. By reheating the air in the drum, it’s gentler on even the most delicate of delicates. And it means you’ll use less electricity compared to a traditional condenser or vented tumble dryer, making it kinder on your bills and the environment too. Optimal Dry smart technology uses moisture and temperature sensors to adjust the drying time. As well as protecting your clothes from damage, it saves energy too. Now here’s a tumble dryer that does more than simply dry your laundry.