How Often Should You Change Your Furnace Filter?
Furnace filters need to be changed whenever they get dirty. Unfortunately, there is no single answer for how long this takes as everyone’s situation is different. The rule of thumb is every three months, but you might need to change it more or less frequently. Signs You Need a New Furnace Filter You can pull the filter out and look at it. If it’s visibly dirty, then change it. If your HVAC system is running more often than normal, that’s a sign you need a new filter. Other signs are more dust in your home than normal and odd smells...
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