The recommendation of EPA and National Air Duct Cleaning Association is that you have to clean the duct after 2 or 5 years. However, the frequency may vary, depending on the factors like size, capacity, fuel type, utilization hours per day, location of the furnace, air flow within the location, flue pipe capacity and size, and other factors.
How often should you have your air ducts cleaned?
You have to get your air ducts inspected by a professional, at least once in 3 to 4 months. He will be able to advice you about the frequency of professional Furnace cleaning Calgary . Generally speaking, there are specific parameters which determine the frequency. Let us consider some of the most important factors now.
Furnace capacity depends on the number of applications for which you use it. You may use it for water heating, radiant heating, forced air heating, etc. The numbers of units within your home (from the kitchen to bathroom’ living room, and bedroom, etc.) determine the total volume of output per hour. The volume may increase during winter for heating. The volume of cooling may increase during the summer. Hence, the amount of carbon emission will also vary for the furnaces. Therefore, the depositions within the ducts could be dense and hard. In such cases, you may have to get the ducts cleaned once in one year or even six months.
If you are using natural gas or propane, the volume of effluents may be relatively low. Fuels like liquid petroleum may emit more quantity of carbon. Hence, the deposits will also be higher. You have to consider the combustion chamber size and location, air exchange rate, air flow from the furnace into the air duct, and the emission rate per hour.
Calculations related to the air-free carbon monoxide, mixed-air carbon dioxide, carbon monoxide volume in the flue (parts per million), and other factors can increase the volume of pollutants and the debris within the ducts. In such cases, the frequency of cleaning within a year may increase to every four or five months in a year.
The flue vents within the furnace can block due to poor air exchange with the duct. Such blocks can also generate more volume of carbon emissions, which ultimately lead to the extra deposition of gasses and toxic elements within the ducts. The blocks can occur anywhere in the vent from the outlet, fan location, or mid location. The factors, in turn, depend on the furnace working mode. Some of the furnaces may work in continuous mode. The others may work on cyclic mode.
The blockage points between the flue vent and the duct could be higher when the furnace output is generated continuously. It could be lesser when the output frequency is lower. So, you have to consider the design factor also.
Regular inspection by a professional duct cleaning expert could be the recommended method to determine how frequently you need to clean the ducts …