Aura Astra Oil Filled Electric Radiators. Wall Mounted or Portable. Available in White. These Traditional-style Panel Heaters are for Mains Electric Connection. Top Quality – Low Price. An oil-based heater is energy efficient. The oil heats up and maintains its temperature for a period. This increases the time intervals between the thermostat turning on to maintain room temperature. Small & Medium Sizes available. Ideal for your Lounge, Dining Room, Conservatory or Kitchen. Buy Online From Solaire Quartz, UK. 2 Year Guarantee – 30 Day Returns Policy.