Co-Authored By:

Likewise, people ask, how much does it cost to run a 1500 watt heater for 24 hours?

A common **wattage** for space **heaters** is **1,500 watts**. Apply the formula **1,500** x **24** ÷ 1,000 x $0.20 to determine the **cost to run** the space **heater** for a day. (Dividing by 1,000 changes **watt hours** to kilowatt **hours**.) In this case, it will **cost** $7.20 if it was **running** for **24 hours** straight.

Herein, how many square feet will a 1400 watt heater heat?

Therefore, a **1500** watt space heater (120 volts) can heat an area of **150 square feet**, and a garage heater rated at 5,000 watts should be able to comfortably heat an area over 400 square feet.

Less heat if using with other heat source In other words, a **1,500**-**watt heater** will be great for a 250-square-foot room with central heat. If that same room had no other source of heat, you'd need a 2,000-**watt heater**.