As a homeowner, you already know the importance of regular filter maintenance for your HVAC system. But what happens if your filter is dirty or broken? Can you still run your furnace while you go out to buy a new filter or wait for one to be delivered?
Let’s see why a clean HVAC filter is so important and what happens if you try to run your furnace without one.
What Do Filters Do?
The primary function of filters in your HVAC unit is to shield the furnace, specifically the blower fan, from dust, debris, and particles that could compromise its performance. Filters capture these elements and prevent their accumulation, which not only helps the system run better but maintains functionality. Filters also contribute to better indoor air quality by preventing the circulation of pollutants into your living spaces.
How Often Should I Change My Filter?
It’s generally recommended to change your air filter every 30 to 90 days depending on usage and filter size. However, individual factors such as the type and size of your filter, air quality, and system usage may influence the frequency. Always refer to manufacturer guidelines for their recommendation to ensure both system health and indoor air quality.
Do All Furnaces Have Filters?
Not all furnaces have filters. While many modern HVAC systems come equipped with filters, older or basic furnace models may lack this feature. The presence of a filter depends on the furnace’s design and the manufacturer’s specifications.
Can You Run a Furnace Without a Filter?
Your furnace can, technically, run without a filter. However, we strongly recommend you don’t run your furnace without a filter for any length of time.
With air constantly moving through your furnace and your home, dust and debris can quickly build up, even in a matter of minutes. When this level of buildup happens, your furnace can malfunction. In that case, your furnace would require a professional inspection, cleaning, and even costly repairs to work properly again. It also presents significant health and safety risks for your family.
In short, you should only run your furnace with a clean filter.
The Dangers of Running a Furnace Without a Filter
Here are some of the things that can happen when you run your furnace without a filter.
Poor or Dangerous Air Quality
Running your furnace without an air filter allows dust and air pollutants to seep into the air you and your family breathe. This can trigger severe allergies or other respiratory issues.
Pollution in Your Ducts
If you run your furnace without a filter, air pollutants will settle into your ducts, restricting proper airflow and causing major respiratory issues. Additionally, the humidity can cause moisture to accumulate in your ducts, which then attracts dirt and debris that stick to duct walls. This will eventually cause mold growth
A Furnace Breakdown
A furnace filter is a major component of your furnace. As the inside of your system accumulates dust and debris, it can quickly become coated with grime, which can cause a chain reaction breakdown of other furnace parts. It can then cost enormous amounts of money to fix your system, or you may have to replace it altogether.
Furnace Fires
The buildup in your furnace increases the risk of fire, especially around electrical components. This can happen quickly in a running filterless furnace.
Can You Run a Furnace With a Dirty Filter?
Even a dirty filter restricts airflow, causing your HVAC system to work harder, leading to reduced efficiency and even potential damage. Dust and debris can quickly accumulate and impact your system’s performance and longevity, resulting in expensive repairs or the need to replace your entire system.
Keep Your Furnace Safe With John C. Flood
Always use a clean filter when running your furnace. Check the filter regularly to avoid running your system with a dirty filter or having to remove it entirely. This helps optimize its performance, which in turn keeps your home comfortable and your family protected.
Contact John C. Flood today to schedule a complete maintenance check of your HVAC system and prevent future problems from becoming major catastrophes.
