Bromic Tungsten 4000 Watt, Smart Radiant Infrared Electric Patio Heater
If price is no object, you may want to consider the Bromic Tungsten Smart Radiant Infrared Electric Patio Heater. At 4000 watts of power, this heater is capable of heating up an area to 120 square feet, almost 10 times greater than the top rated heater on this list. However, you’ll definitely pay for that luxury on your next energy bill.
Unlike the other units on this list, it runs on 220 volts of electricity so you'll need a dryer hook-up or a specially installed 220 outlet; you can also put in a dimmer switch and have an infinite heat setting. It works best beneath an eve, an awning or the ceiling in a gazebo. While protected by a one year warranty, overall, you'll have to justify the initial cost and ongoing energy bills before choosing a heater like this.