Your oven owner's manual will specify the best MERV rating for your furnace, and in general, filters with a MERV rating of 6 to 9 should be changed every 90 days, while those with a MERV rating of 10 to 12 should be changed every 60 days. It is important to note that this is a general recommendation and there are several factors that can affect the time between furnace filter replacement intervals. When it comes to air filters, fiberglass ones usually need to be changed every 30 days or as recommended by the manufacturer. Pleated air filters, on the other hand, should be replaced approximately every three to six months. However, the frequency of air filter replacement depends on several important factors such as the home, its occupants and their location.
For those who suffer from allergies, it is important to change the air filter more often and we recommend replacing it every 30-45 days.Fibreglass air filters are more affordable but less efficient at capturing dust and particles from the air. If you install an air filter with a MERV rating higher than the one recommended by the boiler or air conditioner manufacturer, you could impair the performance of the heating and cooling system. The main purpose of a heating filter is not to clean the air you breathe, but to clean the air that passes through the boiler and other heating, ventilation and air conditioning equipment. The MERV (Minimum Nominal Efficiency Value) is a rating that indicates the effectiveness of an air filter or, more specifically, its ability to trap particles from the air in your home. To ensure that only clean air comes out of the air conditioning system, it is important to change the air filter before it gets clogged so you can breathe better. Most manufacturers include the MERV rating and filter dimensions on the long side of the filter (see an example here).
Generally, filters with a low MERV can last longer because they don't accumulate as many particles as filters with a high MERV. Air filters with a MERV rating ranging from 17 to 20 are designed for areas that require absolute sterility, such as operating rooms or rooms for immunosuppressed people. The filter is placed in a shared air controller where it cleans the air before diverting it to the air conditioning unit or oven. So how often should you actually change your boiler filter? Let's take an in-depth look at your home's boiler filter, what it does and why it's important to change them regularly. In most cases, air filters with a MERV rating equal to or lower than 16 are designed for residential, commercial, and institutional HVAC systems. In addition to keeping the air conditioning system free of contaminants, boiler filters also help to clean the indoor air you breathe. To ensure optimal performance of your HVAC system and keep your indoor environment healthy and safe, it is important to replace your furnace filter regularly according to its MERV rating. Your oven owner's manual will specify the best MERV rating for your furnace.
Generally speaking, filters with a MERV rating of 6 to 9 should be changed every 90 days while those with a MERV rating of 10 to 12 should be changed every 60 days. If you have a filter larger than 2 inches (which is recommended for most MERV 8+ filters), you can usually wait longer to replace it. Fibreglass air filters are more affordable but less efficient at capturing dust and particles from the air. They usually need to be changed every 30 days or less. Pleated air filters should be replaced approximately once every three to six months.
However, if you suffer from allergies it is important to change your air filter more often - we recommend replacing it every 30-45 days. Now you're ready to choose the right air filter to help maintain a clean and healthy environment for you and your family. To ensure optimal performance of your HVAC system and keep your indoor environment healthy and safe, make sure you replace your furnace filter regularly according to its MERV rating.