If you're looking to replace the air filter in your heating, ventilation and air conditioning (HVAC) system, the first step is to check the size of your current filter. Most filters have the sizes listed on the side, including the length, width, and depth in inches. To determine the nominal size of the air filter, you must round to the nearest whole number. The actual size of the filter should be 0.25 to 0.5 cm smaller than the slot or frame itself. Most boiler and HVAC air filters are 1 inch thick, but some require thicker filters of 4 to 6 inches.
These can withstand more accumulations and trap more particles than a standard filter. However, if the filter isn't the right size, either too small or too large, air will flow around it instead of through it and not all of the air will be filtered. To avoid this problem, you can measure your air filter yourself with a ruler or any other measuring device. Alternatively, you can choose from filters that are already in stock if your air filter size is available. Most online air filter retailers have a custom air filter page where you can find a choice of custom sizes. It's important to note that stacking several small air filters on top of each other to fit in a larger air handler can cause costly damage to the air conditioning unit.
Additionally, filters should be changed every 30 to 90 days depending on their type and efficiency. When it comes to finding the right size air conditioner filter for your HVAC system, it's important to take into account both the size of your current filter and the type of filter you need. If you're unsure about what size or type of filter you need, it's best to consult an expert who can help you find the right fit for your system. By following these steps and taking into account all of the factors mentioned above, you can ensure that your HVAC system is running efficiently and effectively with a properly sized air conditioner filter.
