How to Use the Combined Heating Appliance Electricity Cost Calculator
In winter it's common to run several heating devices at once — an electric blanket, a space heater, a heated mat. Each one might seem like a small draw on its own, but running them together can push your monthly bill higher than expected. This calculator adds up the wattage and daily usage hours of all three to estimate your combined monthly electricity cost.
Electric blankets and heated mats use thermostatic control and typically draw relatively little power, while a space heater has to warm an entire room, so it draws far more. That means even a small increase in heater run time has an outsized effect on your total bill. Leave any device you don't use at 0 and it's automatically excluded from the calculation.
You can find exact wattage on the appliance label or manual; if you don't know it, typical household values still give you a reasonable estimate. If the cost feels high, cutting back on heater hours and relying more on the electric blanket or heated mat is usually the more efficient way to stay warm.
Frequently Asked Questions
An electric blanket or heated mat draws relatively little power, but a space heater draws much more, so running one alongside the others can significantly raise your monthly bill.
Switch to a low-power setting after you fall asleep, cut down on heater run time, and rely more on the electric blanket or heated mat to save on electricity.