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Why do you need to replace the furnace humidifier filter frequently?

Why do you need to replace the furnace humidifier filter frequently - Springs Heating Alberta

Your humidifier has an important job. It helps to stabilze the mositure in your household. And as a homeowner, it’s prudent to understand that maintaining the humidity level in your home is a good way to prevent your wood floors and furniture from drying out. Moreover, your home’s air quality will improve drastically with a fully functioning humidifier. Another advantage of having humidity in the air is that it can help you feel fresh and reduce the sensation of (and susceptibility to) a dry throat and eyes, especially in the winter months.

This can go a long way, particularly if you or any of your family members are prone to allergies.

You can achieve a comfortable level of humidity in your house by having a furnace humidifier installation in Calgary. However, once a humidifier installation is complete, you will have to monitor the filter. But how often do you need to change the furnace humidifier filter and why? Keep reading to find out.

What is a furnace humidifier filter?

Also referred to as a water pad, water panel, or evaporator pad, your humidifier filter essentially retains and dispenses moisture directly to the air as it progresses through the furnace. Once low levels of humidity begin to settle into your home, additional water is added to the pad of the humidifier and distributed to the traversing airflow within your home.

A better way to think of the filter in your humidifier is a water retainment pad. It stores water so that the furnace air can pass through supplying moisture to the air in your home. When your humidity control senses a drop in the percentage of humidity, it causes the water to flow through the pad so it can maintain the specific level of humidity you desire.

As this process takes place; naturally, smut, fungus, mildew, etc, begin to accumulate. For this reason, a change in the filter of your humidifier becomes an appropriate response under such conditions.

Why should you change the furnace humidifier filter frequently?

As previously stated, if left untreated, dirt, debris, and decay will infiltrate your filter. As a result, your furnace will not function as efficiently as it should. And this has the potential to lead to a whole host of problems such as:

  • Clogged up filters
  • Insuffificent humidity levels
  • Leaking/choked drain which can lead to overflow
  • Quicker wear and tear (and more repairs) due to an overworked furnace
  • High energy costs
  • Compromised air quality, etc

The humidifier filter needs to be changed regularly in order to prevent these mineral and mold particles from building up anymore than is necessary. Other reasons to change your filter is to keep the air passing through it smelling fresh, allowing the unit to run at peak performance, and prevent any possible leaking.

How often should you change your filter?

After you have had a humidifier installation in Calgary, your technician will tell you how many times a year you should change the filters. Generally, once per year is sufficient to maintain the humidifier in good working order. If you have questions about the frequency for switching filters, refer to your instruction manual that will come with the unit. You may need to change the furnace humidifier filter more often in the winter months when the demand for humidity in your home is at its peak.

Additionally, there are other factors that may influence the frequency of filter change. These variables will include whether you have pets or allergies. Your furry friends may make it necessary to change your filter every 6 months (or more if you have several pets) rather than once a year. And of course, allergies will impact how often you’ll need to change your filter as well.

But an important point to keep in mind is that these are all things you can play by ear. If you find your air quality isn’t compromised in any way due to your pets or allergies – then you may be in the clear.

However, even if such is the case, it’s always better to routinely replace your furnace filter anyway. Leaning on the side of caution is never a bad idea – especially when it comes to your home. Better to be safe rather than sorry.

What can happen if you don’t change the filters?

Forgetting or avoiding changing the humidifier filters could put unnecessary stress on your humidifier. This additional strain will cause it to become less effective and will hinder its ability to retain your desired humidity levels. Moreover, filters can get clogged with a build-up of dirt, grime, and filth, which as a result, will reduce the amount of humidity that is transferred to the air.

A dirty filter can also be the cause of leakage or an overflowing drain. When you lack humidity in the air, you will notice an increase in static electricity and a sensation of dry skin. This can also lead to itchy eyes, throat irritation, as well as dried-out phlegm membranes.

But it doesn’t stop there…

Because if your phlegm membranes become dried out, it could result in flus and viruses since your system is no longer protected by your moist mucus membranes.

Help yourself and your family feel refreshed and breathe easier by contacting a technician for humidifier installation in Calgary. You will appreciate the benefits of controlled moisture throughout your home.


As you can see, the benefits of regularly replacing your furnace humidifier filter are plentiful. For this reason, you’ll want to ensure that you remain on top of this simple duty so you can reap the advantages of fresh air circulating through your clean home.

We here at Spring’s Service & Heating have been servicing Calgary and the surrounding areas for over 50 years. As such, we house an experienced and professional team of servicemen to assist you with all of your HVAC needs.

So if you find yourself in need of HVAC maintenance, repairs, or installation services, don’t hesitate to get in contact with us today.

We look forward to hearing from you.

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