Dimplex XLE represents the new non-high heat retention standard for storage heating, raising the bar over conventional storage heaters. XLE storage heaters offer dynamic storage calculation, adjusting the amount of energy that is stored to meet the user's requirements without wastage. As a result, a greater amount of electricity can be saved with off-peak energy. Users now have greater control over their heating with the built-in timer, allowing heating times and temperatures to be defined. Heat leakage, a common trait of conventional storage heaters, has also been greatly reduced allowing the room to be at a comfortable temperature in the morning and still have enough stored energy to heat on a night. Two electrical supplies will be required for the XLE. These are: Peak Supply to control the electronics, fan and boost and an Off-Peak Supply for the storage core.