The indoor environment might seem clean, but we may not be aware of the air it holds. There might be dust, allergens, and other pollutants that can barely be seen but are easily inhaled. That’s where a furnace fits right in!
A normally functioning filter in the furnace does great work trapping these particles before they circulate in your living areas. Research also proves indoor air pollution may be as much as two to five times worse than outside air pollution.
In this blog, Dript will uncover all you need to know about filter for furnace.
What Is A Furnace Filter
A furnace filter is an element placed within a system that enables air to be channeled directly to the furnace or can be any barrier placed between the air and the furnace, which is used to filter the air by removing dust and other particles such as dirt and allergens. This allows for less accumulation inside the system’s complex interior and results in improved efficiency and durability of the furnace.
Heating system filters are important for two primary uses
- Air quality
- System protection
These filters greatly help people breathe cleaner and purified air. People with allergies can live freely without getting prone to allergens or similar bacteria.
How a Furnace Filter Works: Step-by-Step
It works on the following principle.
Air Enters the HVAC System
The process begins by taking up the air from inside the house. This air is sucked through the return air ducts, and it is directed towards the furnace, and with it comes dust, pollen, pet dander, and other irritants.
Air Passes Through the Furnace Filter
Before the air reaches the furnace components, it must pass through the filter. The filter is positioned near the air intake as a barrier, catching particles of various sizes.
Particles Are Trapped in the Filter
It contains a mesh material selectively made from fiberglass, pleated fabric, or electrostatic fibers that effectively stop dust, dirt, and allergens. Determined by the filter design and MERV rating, small to microbial-size particles may be removed to prevent their circulation in space.
Clean Air Moves Through the System
The cleaner air continues through the furnace and HVAC system with contaminants removed. The next step is to heat the trapped air, or vice versa if the system at the cooling mode and distributed through your home’s ducts and vents.
Air Circulates Back and the Process Repeats
The air cycle repeats multiple times, filtering out more particles each pass. As pollutants get contaminated in the filters, they need to be examined regularly to get the cycle flowing effortlessly.
Furnace Filters | Exploring Different Types
Let’s explore them.
1. Fiberglass Filters
These are the most basic, most common furnace filter size and affordable types. They consist of thin layers of fiberglass material arranged in a mesh pattern to trap larger particles like dust and debris.
Pros:
- Inexpensive and widely available.
- It offers basic filtration that is suitable for Kitsilano homes without significant allergy concerns.
Cons:
- It is not very effective at capturing smaller particles like pollen and allergens.
- Needs frequent replacement (typically every 1-2 months).
2. Pleated Filters
These are highly efficient and are made from polyester or cotton fibers. The material is arranged in folds or pleats, which increase the filter’s surface area. This allows them to capture more particles than fiberglass filters.
Pros:
- They are effective at capturing pet dander and pollen.
- Available in various MERV ratings to match specific filtration needs.
Cons:
- Slightly more expensive than fiberglass filters.
- It can restrict airflow if the MERV rating is too high for the system.
3. Electrostatic Filters
They use self-charging fibers to attract and capture particles as they pass through. There are different variations in the models, and depending on each, you can wash them and dispose of them respectively.
Pros:
- Highly effective at capturing small particles like mold spores.
- Due to their flexibility, they are a long-term investment.
Cons:
- More expensive upfront than basic fiberglass or pleated filters.
- Washable models require regular cleaning to maintain effectiveness.
4. High-Efficiency Particulate Air Filters
These are designed to capture 99.97% of particles as small as 0.3 microns, making them one of the most effective filters.
Pros:
- Easily capture air pollutants, any kind of small particles.
- They are perfect for people who are prone to allergies
Cons:
- Typically not compatible with all furnace systems due to high airflow restriction.
- Can be costly and may require a specialized HVAC setup.
5. Carbon Filters
These contain activated carbon to capture particles and neutralize odors and volatile organic compounds (VOCs). They are typically combined with other filter materials for enhanced performance.
Pros:
- Effective at removing odors and harmful gases, improving indoor air freshness.
- Adds an extra layer of filtration by targeting airborne chemicals.
Cons:
- Usually more expensive than standard filters.
- Needs frequent replacement to maintain effectiveness.
6. Washable/Reusable Filters
The flexibility of these filters is that you can use them as often as you want until they get worn out. It usually doesnt happen because they are typically made of durable materials like aluminum or electrostatic mesh.
Pros:
- Cost-effective over time since they don’t require frequent replacement.
- Environmentally friendly, as they reduce waste.
Cons:
- Requires regular maintenance (washing every 1-3 months).
- It may have lower MERV ratings, offering less filtration than disposable filters.
You can also avail of seasonal maintenance services to avoid any inconvenience.
Key Benefits of Using a Furnace Filter
Let’s explore these benefits in detail:
1. Quality Air
Indoor air is improved a lot with a high-end filter function. It is wise to have a check on them and replace them before they get all clogged up. In this way, a heathy environment is achieved, which is beneficial to live in, as it restrains from respiratory and other risks of allergies.
2. High Efficacy
A clean filter can help promote the HVAC system’s normal functioning by providing it with a healthy amount of fresh air. Clogged filters make the system work harder to push air through, resulting in high energy consumption and utility bills.
3. Prolonged Furnace Lifespan
It shields your aeration system from deteriorating by restricting dust accumulation in the interior parts of the furnace. Dirty filters allow particles to overcome the protection barrier they initially provided. Resultantly, it ruins the filter quality and functioning and causes expensive repairs.
4. Low Energy Consumption
An efficient furnace runs for shorter times to get the temperatures in your home to the right level and, therefore, consumes less energy. A filter filled with grime can lead to higher system productivity; this means that more energy will be used, leading to high utility bills.
5. Environmental Benefits
The regular replacement of your filter and the choice of a good quality filter benefit the environment. An optimal HVAC system operates at a low power utilization, thus minimizing carbon dioxide emission.
Further, some better quality filters are made of environmentally friendly material or are reusable, thus making home heating and cooling environmentally friendly.
6. Better Health and Well-Being
Indoor air pollution affects one’s health, so preparing your home for clean air makes the house healthier. Health issues such as respiratory diseases, lack of sleep, and mood swings can be reduced in fresh air. Hence, an appropriate furnace filter will increase the comfort of the home and the health of all residents.
7. Protection for Other HVAC Components
Lastly, a clean filter keeps other important parts of your HVAC system safe from dirt accumulation. They help the whole system function as it is supposed to by keeping particles such as dirt and debris off coils, motors, and ducts, thus decreasing the chances of them having to break down.
Conclusion
Learning about a furnace filter is important in maintaining good indoor air quality. In addition, it is recommended to select the right filter consistently and change it at the proper time, which can improve air quality, decrease energy usage, and prolong the furnace’s longevity.
Are you looking for assistance with a furnace repair service, or if you require to have your filter changed, Dript Plumbing and Heating offers great solutions to all your needs. Contact us and keep your Kitsilano home environment sweet and safe.
FAQs
1. How Often Should I Change the Filter?
You must change it after every one to three months, depending on the type, usage, and indoor air quality. Clean or replace your filter monthly to decide if it is needed sooner based on the circumstances.
2. Can A Dirty Furnace Filter Affect My Heating Costs?
Yes, a clogged filter slows the rate of air circulation and forces the furnace to work, draining more energy and raising heating prices while lowering the efficiency level.