Free tools from the Alberta Indoor Comfort team. Each one uses the same worksheet our technicians fill in at Calgary homes, runs entirely in your browser, and saves nothing you type.
Home heat loss calculator
Estimate how much heat your home loses on a cold Calgary day, in BTU per hour, from its windows, doors, walls, roof, basement, air leaks and ventilation. This is the number a furnace or heat pump has to replace.
Electrical service load calculator
Estimate your home’s calculated electrical load and the main service size it needs, following Canadian Electrical Code Rule 8-200. Useful before adding a heat pump, an EV charger or a secondary suite.
Open the electrical load calculator
Duct airflow loss calculator
Compare the airflow measured at each supply vent with your furnace’s rated airflow to see how much air is lost in the ductwork before it reaches your rooms.
Open the duct airflow calculator
These calculators give estimates for planning. For a measured answer for your home, call 587-792-1456 or contact us.