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New Braunfels (830) 624-7079 San Antonio (210) 846-3234
Air Conditioning, Heating, Ventilation, and Refrigeration
SERVICE, REPAIR, & INSTALLATION
You will see many air filter packaging that says lasts “up to 90” days”. Well, how often should your filter really be changed then? That is a good question because there are many variables that effect how a filter gets dirty depending on your area and lifestyle.
Around here in this neck of the woods, being in the New Braunfels and San Antonio area, if you are using a pleated type air filter in the summer, you should go no more than 30 days. In many applications more often.
Things that effect the length of time air filters will last are:
A. Number of filters you have.
B. Type of filter (standard 1”)
C. Run time of system.
D. Time of year.
E. If your fan is in the auto or the on position.
F. Doors and windows closed or not.
G. Area you live in.
H. Carpeting or Tile.
So… Depending on where you live in this area and how you live can affect the length of time it takes your filter to get plugged up. You want to change your filter before it gets this bad as you will lose efficiency of your system and cause other problems like poor performance, freezing up, compressor damage, and others.
Losing efficiency and capacity due to a dirty filter is entirely preventable and will save you a lot of money on your electric bill. Basically, filters are cheaper than electricity and repair bills, even if you buy good filters.
Get a handle on how long your filter lasts by checking it every week for a while to determine how long it lasts. Do this regularly in the summer and the winter to get on a schedule. Hold it up to the light and see how much light goes through it and you will know when it is time (be sure to put it back in the same direction if you don’t replace it!). You should be able to see light through it. If not then you are past due. As a rule of thumb, change your filter every month and use a pleated type until you get your schedule down for your application.
MERV Rating- the MERV rating has little to do with how long your filters will last. It has to do with the size particle it will capture. It also has nothing to do with airflow. More on this in another upcoming blog.
We will soon be opening a retail outlet in New Braunfels, Texas where we will be selling filters to the public. Also, more on this in another upcoming blog.