Kansas Utility Cost Estimator — Heating vs Cooling Season
Compare your estimated annual heating and cooling utility costs using Kansas climate data (Heating Degree Days and Cooling Degree Days), your home's characteristics, and local energy rates.
Home & Location
Heating System
$/therm for gas; $/kWh for electric/heat pump; $/gallon for propaneCooling System
Kansas avg residential rate ≈ $0.11–$0.13/kWh (2024)Formulas Used
Annual Heating Load (BTU):
Q_heat = UA × HDD × 24
Where UA = whole-home heat loss coefficient (BTU/hr·°F), HDD = Heating Degree Days (base 65°F), 24 = hours/day.
Heating Fuel Consumed:
Units = Q_heat / (Efficiency × BTU_per_unit)
AFUE used for furnaces (e.g., 0.95); COP used for heat pumps (e.g., 2.5–3.0). BTU/unit: natural gas = 100,000 BTU/therm; propane = 91,500 BTU/gal; electricity = 3,412 BTU/kWh.
Annual Heating Cost:
Cost_heat = Units × Rate ($/unit)
Annual Cooling Load (BTU):
Q_cool = UA × CDD × 24
CDD = Cooling Degree Days (base 65°F).
Cooling EER from SEER:
EER = SEER × 0.875
Standard approximation per ASHRAE for mixed-climate operation.
Cooling Electricity Consumed:
kWh_cool = Q_cool / EER
Annual Cooling Cost:
Cost_cool = kWh_cool × Rate ($/kWh)