No! Dimplex fireplaces and stoves operate for pennies a day. The flame uses slightly under 300 Watts of power. With an average electricity rate, the unit operates for a remarkable 3¢ per hour providing all the warmth, ambiance and romance of a fireplace. When you choose to activate the heat feature along with the flame, the unit uses approximately 1500 Watts. The total cost to operate the flame and heater is approximately 8 per hour (gas fireplace manufacturers regularly advertise running costs of 17¢ per hour)! Electricity rates vary. 8 ¢ per hour based on heater cycling at 50%.