Furnace Air Intake Economizer

Project Description:

This device uses the sun to preheat air as it enters the furnace in order to reduce its workload. In a gas furnace heating system, outside air passed through a heat exchanger, such as an HRV, into the intake of a gas furnace. Then, the furnace heats up the air to room temperature before distributing it throughout the rest of the building. In a country with colder weather like Canada, this process is the culprit for the majority of a household’s energy usage. The economizer intervenes in this process. By using the sun to preheat air, less energy needs to be spent by the furnace to heat to room temperature. Therefore, it economizes the process and lowers a household’s energy bill.

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