Dimplex QM050RF Quantum 500W Output Storage Heater Smart Digital Control Wifi with Energy Cells\n\nQuantum is the worlds most advanced economy 7 storage heater. It uses low-cost, off-peak energy, making it the most economical electric heating system on the market today. Plus, it adapts to match lifestyle and climate conditions, delivering heat only when it's needed. With its compact, state-of-the-art design, Quantum is the perfect upgrade for static storage heaters and suits a wide range of applications.\n\nDimplex Storage Heater features\n--Cost savings - Quantum is up to 27% cheaper to run than a standard storage heater system. It's also up to 47% cheaper to run than an electric convector or radiator system.\n--Heat on demand - Quantum stores energy up during periods of low demand, turning it into efficient heat only when needed. Through its use of a sophisticated self-learning algorithm, the IQ controller can take just the right amount of heat to match the users lif.