These calculations can be modified by clicking on the underlined values below. See details on assumptions underlying the calculations.

  • Annual heat load

  • Fuel and heating system details
  • Fuel price
  • Appliance efficiency
  • Cost per kWh (adjusted for heat content and efficiency)
  • Annual fuel cost
  • Fuel escalation rate

  • Heating system cost

  • System + lifetime fuel cost

  • GHG emissions
  • Annual CO2 emissions

  • Lifetime CO2 emissions

  • Loan details
  • Build or retrofit cost
  • Heating system cost
  • Incentive
  • Value of loan
  • Interest rate
  • Term of loan (years)
  • Total loan cost (principal + interest

  • Total loan, heating system and lifetime fuel cost