When and How to Change Your Furnace Filter in Kitchener Published on December 01, 2015 Maintaining your furnace can go a long way in the period in between furnace service appointments. One of the simplest, and essential, ways to care for your furnace is by changing your furnace filter. Having a clogged air filter can contribute to a number of unfavorable problems for your heating and cooling system, its efficiency, and ultimately, how much your energy expenses are every month. So what goes in to determining when you should change your furnace filter?Type of filter: the two most common filter sizes are 1 inch and 3 inch filters. 1 inch filters normally need to be switched out every month and 3 inch filters should be replaced every three months, dependent on the recommendations of the filter maker.Home habits: if you have pets in your home, it might make sense to switch out your filter more often as a result of pet dander. If a family member deals with allergies or asthma, think about changing your home’s air filter more often to help with their symptoms. Now you’re likely wondering how to swap out your furnace filter. Obviously this will change depending on what furnace you have, but normally: Open or pull off the air filter panel close to the bottom of your furnace to expose an open compartment.On the top of that open compartment is where you’ll see your furnace filter resting on two metal lips.There will be a little space to move your filter back and forth that allows you to remove one end of the filter and pull it out of the compartment.When installing the new filter, look at the perimeter of the filter for an arrow that specifies the air flow direction, to ensure you’re installing the filter in the correct direction. In the majority of cases, the arrow should point at the main part (or top) of the furnace. At Hammond Plumbing & Heating, we’ll swap out standard one-inch furnace filters as part of our regular furnace service Precision Tune-up or PLUS Maintenance Agreement service. Give us a call today at 519-894-3222 or schedule an appointment with us online.