Maintenance agreements are helpful for completing maintenance tasks that many HVAC owners may neglect. But when determining when to change your air filters, here are three things to take into account:
1. How Clean Your Indoor Air Must Be
We all want clean air, but how clean do we need it to be? For the average person, the air doesn't need to be super clean with even extremely tiny particles removed from the air. This type of performance might be necessary in medical or laboratory settings, but not the typical home.
On the other hand, most of us don't want visible pieces of dust and hair floating around our living room either. Air filters come with different levels of air filtration ability. You can figure out how well they can clean the air by looking at the air filter's MERV, or minimum efficiency reporting value rating. The higher the number, the more effective it will be in removing particles from the air. But higher isn't always better. The more particles an air filter can remove from the air, the harder your HVAC's air handler will have to work and the more frequently the filter will need cleaning or changing.
2. Your HVAC's Ability to Use Certain Air Filters
An air filter that can catch and remove more particles from the air will require a more powerful air handler. Before you install an air filter with a higher MERV rating, make sure your HVAC unit can not only handle the increased resistance, but it can still heat or cool your home efficiently.
3. Air Filter Cost
An air filter must also be affordable. If a special filter needs changing every month and costs ten times as much as a filter that needs changing every three months, that special filter will actually be 30 times more expensive. You need to make sure any improved air filter performance is worth this increase in cost.
Under a maintenance agreement, a technician will change the air filter for you. For more information about maintenance agreements and air filter choices, contact our team of climate control experts at Griffin Heating & Air Conditioning.