much electricity
An electric resistance heater uses electricity to produce heat. Unlike a lamp or a phone charger, it needs substantial power to keep delivering warmth.
Consider a heater rated at 1,500 watts. While operating continuously at that setting, it uses 1.5 kilowatt-hours of electricity per hour.
The calculation is straightforward:
Watts × hours of operation ÷ 1,000 = kilowatt-hours used.
Multiply those kilowatt-hours by your electricity price to estimate the energy cost. This is the method outlined by Virginia Tech’s household energy guidance.
The number that matters istherefore a
