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You'll need two pieces of information from your bill; the amount due for the current month

and the number of kWh (kilowatt hours) used. You can find the kWh usage in the meter

reading section of your bill.

The amount of electricity used by a space heater is measured in watts and expressed on

your utility bill as kilowatt hours (kWh). Technically speaking, kilowatt hours is the

product of power in kilowatts (1000 watts) and time in hours - not kilowatts per hour. But

for the purposes of this explanation, kilowatts per hour is sufficiently accurate.

**Step 1. Determine cost per kWh (kilowatt hour)**

The easiest way to do this is divide your total current monthly bill by kWh usage.

**Monthly bill ÷ kWh usage = Cost per kWh**

This isn't the most accurate way to determine the cost per kWh because all electric bills

include a customer service charge of $6 or more which in effect increases the cost per

kWh by 5-10% depending on the amount of your bill. So it's up to you, you can either use

the full billing amount or subtract the service charge before you divide it by the kWh

usage.

For the examples here I'm going to include the monthly service charge because you really

don't have the option to pay it. I typically spend around $69 a month for 438 kWh of

electricity. When I plug the numbers into the formula above it looks like this:

**69 ÷ 438 = 0.158 **So my cost per kilowatt hour is slightly less than 16 cents.

Not coincidentally, the cost per kWh equals the cost to run a 1,000 watt space heater for

one hour.

**Step 2. Determine the cost to run any wattage space heater per hour**

**Cost to run space heater per hour **= **heater watts x .001 x cost per kWh**

For a 1,500 watt space heater at a rate of $0.158 per kWh, the formula looks like this:

**1,500 x .001 x .158 = .237**, or **24 cents per hour** rounded up.

**Step 3. Estimate monthly cost to run**

Let's say I plan on running my 1,500 watt space heater every day of the month for 6

hours. This is how to figure out how much to budget for:

**$0.24 (per hour) x 6 (hrs) x 30 (days) = $43.20**.

**How much will you pay?**

Electric rates in New England are some of the highest in the country. The national

average according to the EIA is 12.5 cents per kWh. So whatever the rate is in your

area, you now have the know how to budget for monthly space heater use and avoid an

unpleasant surprise when you open your electric bill.

and the number of kWh (kilowatt hours) used. You can find the kWh usage in the meter

reading section of your bill.

The amount of electricity used by a space heater is measured in watts and expressed on

your utility bill as kilowatt hours (kWh). Technically speaking, kilowatt hours is the

product of power in kilowatts (1000 watts) and time in hours - not kilowatts per hour. But

for the purposes of this explanation, kilowatts per hour is sufficiently accurate.

include a customer service charge of $6 or more which in effect increases the cost per

kWh by 5-10% depending on the amount of your bill. So it's up to you, you can either use

the full billing amount or subtract the service charge before you divide it by the kWh

usage.

For the examples here I'm going to include the monthly service charge because you really

don't have the option to pay it. I typically spend around $69 a month for 438 kWh of

electricity. When I plug the numbers into the formula above it looks like this:

Not coincidentally, the cost per kWh equals the cost to run a 1,000 watt space heater for

one hour.

hours. This is how to figure out how much to budget for:

average according to the EIA is 12.5 cents per kWh. So whatever the rate is in your

area, you now have the know how to budget for monthly space heater use and avoid an

unpleasant surprise when you open your electric bill.

Most electric space heaters and

electric fireplaces are rated at

1,500 watts. This would be the

"high" setting on the heater.

However, most space heaters also

have a "low" setting or a

thermostat, so for the sake of

simplicity we'll assume the space

heater in this example is operating

continuously at the full power

setting of 1,500 watts.

Also, energy costs vary from region

to region. If you want to know how

much electricity your space heater

uses, you'll need a recent electric

bill to work along with the example.

electric fireplaces are rated at

1,500 watts. This would be the

"high" setting on the heater.

However, most space heaters also

have a "low" setting or a

thermostat, so for the sake of

simplicity we'll assume the space

heater in this example is operating

continuously at the full power

setting of 1,500 watts.

Also, energy costs vary from region

to region. If you want to know how

much electricity your space heater

uses, you'll need a recent electric

bill to work along with the example.