This thesis examines the costs of using different fuel and heating appliance combinations for heating poultry barns in rural Ontario. Natural gas, propane, heating oil and biomass are examined as possible fuel options, and box heaters, radiant tube heaters and biomass boilers are examined as possible appliance options. The model developed begins by estimating the amount of heat needed based on user inputs and poultry barn specifications. The model then determines appropriate heating appliance sizes and quantities as well as fuel costs associated with the selected appliance. Cost calculations are then presented. The results suggest that natural gas, when available, is the most cost effective form of heating, followed by biomass, propane, natural gas when pipeline connections are required, and heating oil.