It's easy to determine the costs of running your appliances. You can use this tool to determine the approximate energy usage and cost of most major natural gas appliances. The natural gas appliance calculator is an estimate cost of appliances. Actual costs may vary between customers.
Help and info
Natural gas is measured in therms or BTUs. A therm is a
measurement of the amount of heat energy in natural gas, equal to 100,000 BTUs.
A BTU, or British Thermal Unit, is the quantity of heat required to raise the
temperature of one pound of water by one degree Fahrenheit. The current charge
for natural gas from Peoples Gas
is $0.4032 per therm.
If you would like to change the rate used in the calculations above, enter a new
$ per therm
Gas calculator - equation
Cost to operate = usage (hours or load) x (BTUs/100,000) x price per therm
Cost to Operate = usage (hours or load) x therms x price per therm
- 1 BTU = 0.293 watt hours
- 100,000 BTU = 1 therm
- 3,413 BTU = 1 kilowatt hour
Common BTU ratings
- Boilers: 100,000 - 200,000 BTUs/hr*
- Boilers (High Efficiency): 80,000 - 160,000 BTUs/hr*
- Dryer: 22,000 BTUs/hr
- Furnace: 100,000 - 150,000 BTUs/hr*
- Furnace (High Efficiency): 75,000 - 100,000 BTUs/hr*
- Garage Unit Heaters: 30,000 - 100,000 BTUs/hr
- Gas Fireplace (standard) 25,000 - 35,000 BTUs/hr
- Generator (standby): 200,000 - 300,000 BTUs/hr
- Outdoor Grill: 25,000 - 40,000 BTUs/hr
- Pool Heater: 199,000 - 400,000 BTUs/hr
- Range: 60,000 BTUs/hr
- Range (Commercial): 120,000 - 225,000 BTUs/hr
- Spa Tub: 100,000 - 200,000 BTUs/hr
- Tank Water Heater: 35,000 - 60,000 BTUs/hr*
- Tankless Water Heater: 140,000 - 200,000 BTUs/hr*
* Multiple equipment may be used to total the BTUs listed.