thermostats savings calculations

These calculations display your estimated savings based on assumptions below

For customized calculations enter your own data in the green fields

type of heater

cost per kilowatt hour
cost per therm
cost per CCF
cost per cubic meter
1 CCF = 103,100 BTU = 1.031 therm
1 m3 = 35.31 ft3 = 0.3531 CCF
Heating Seasonal Performance Factor (HSPF) BTU/(W hr)
Seasonal Energy Efficiency Rating (SEER) BTU/(W hr)
Annual Fuel Utilization Efficiency (AFUE) %
Heater capacity BTU/hr
Air conditioner capacity BTU/hr
Time heating without programmable thermostat hours
Time cooling without programmable thermostat hours
Time heating with programmable thermostat hours
Time cooling with programmable thermostat hours

How your savings are calculated

Step 1 determine heating and cooling saved

2079 hours - 1726 hours = 353 heating hours saved

1118 hours - 928 hours = 190 cooling hours saved

Step 2 determine energy savings for heating

36,000 BTU/hr heating capacity / 8.2 HSPF = 4390 W (efficiency-adjusted)

4390 W / 1,000 W/kW = 4.39 kW

4.39 kW x 353 hours of heating saved = 1549.67 kWh saved

Step 3 determine energy savings for cooling

36,000 BTU/hr cooling capacity / 15 SEER = 2400 W (efficiency-adjusted)

2400 W / 1,000 W/kW = 2.4 kW

2.4 kW x 190 hours of cooling saved = 456 kWh saved

Step 4 determine total savings

1549.67 kWh saved on heating + 456 kWh saved on cooling = 2,006 kWh saved yearly

2,006 kWh yearly savings x 15 year expected life = 30,085 kWh lifetime savings

2,006 kWh saved x $0.118 per kWh = $236.67 total yearly savings

30,085 yearly savings x $0.118 per kWh = $3,550.04 lifetime savings
Savings calculations are presented as an example of potential savings; actual savings may vary based on use, utility rates and other factors. Calculations are based on national averages and assumptions and may be adjusted for a more accurate estimate of individual savings. While EnergyEarth strives to provide the most accurate information, we cannot guarantee the savings displayed.