Your filter gets clogged faster when your furnace is running more often. That's because more air is cycled through your filter when your furnace goes through more
Causes can be dirty duct work, pets, candles, dusty atmosphere, a whole host of things. Cut down to merv 8, should help some.
When the thermostat's fan setting is set to “ON” the indoor blower will run 24/7, constantly circulating air over the air filter. So now the filter is constantly catching airborne contaminants, causing it to quickly get dirty.
Wintertime is especially hard on furnaces and their filters since most people run heating more often. Higher levels of system usage can fill up filters faster, so check your filter every few weeks and switch it out as soon as it becomes dirty.
They get dirty because air filters are not 100% effective and the air moved in air conditioning systems is very humid, so the dirt tends to stick to the walls of the duct.
If you see dust and dirt both inside and outside — especially by the vents that blow cool air out — your ducts most likely need to be cleaned. To prevent future dust buildup, make sure you replace your HVAC system air filters frequently. You can also run an air purifier.
Inexpensive, washable vent filters may offer an improvement. However, stubborn dust issues may benefit from the addition of a HEPA air filter.
A buildup of debris in your vents can restrict proper airflow, leading to incorrect combustion of your furnace leading to brown or black soot and debris accumulating on your filter. You may also notice that the heat from your vents isn't as warm as it should be or blowing out as much air.
Can a dirty filter stop a furnace from working? Yes, without this furnace maintenance task of cleaning the filter, your furnace could require a premature replacement. If your maintenance list does not include replacing the filter, you're risking a lot.
The most common problem you will face with a backwards facing filter is simple inefficiency. If your furnace is forced to blow air through the non-porous end of a filter, it will take more energy to do so. The blower will be overworked and you will pay more money for your heating.
Soil, sand, chemicals, and germs can enter your home from cracks in the doors and windows or from your clothes, shoes, and pets. While dusting is an easy chore to forget, a buildup of dust on surfaces can make your home look dirtier and affect your overall air quality and well-being.
When the air filter becomes clogged with dust, dirt, and debris, it restricts the airflow passing through the system. This restriction causes the AC unit to work harder, leading to decreased efficiency and reduced cooling capacity. Restricted airflow can even cause the coils to freeze in your outdoor or window unit.
NO. A furnace filter has a critical job to perform and a filter cannot be run without one. For a furnace to work properly, it should always be equipped with a clean, working filter. As we'll see, a dirty filter can cause problems, and so can having no filter at all.
Filters with a MERV rating of 8-13 are usually higher-end filters for home use or high-quality commercial filters. These filters are typically the right choice for use in homes and many businesses.
Extreme Temperatures Temperatures outside being hotter or colder than expected can cause your system to run longer, cycling more air through your furnace or air conditioner. When more air is being pushed through the system by the blower motor man, naturally the filter is going to capture more dirt and clog faster.
For 1- to 2-inch filters, replace them every 1 to 3 months. For 3- to 4-inch filters, replace them every 6 to 9 months. For 5- to 6-inch filters, replace them every 9 to 12 months.
Black Soot Deposition
Black soot can quickly turn our air filters black. This is usually a result of burning candles. Candles are made of carbon-based materials that don't all combust when burned. They end up producing tiny soot particles which then get into our carpet, on our furniture, and in our air filters.
Infrequent Cleaning & Dusting
Keeping your home clean actually has a serious impact on your air filter. The more often you dust, sweep, mop, vacuum, and polish various surfaces of your home, the longer your air filter will last.
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.
Expensive air filters are made from higher-quality materials, like fiberglass, that can last for up to 12 months. This not only saves you money, but it's also more convenient since you won't have to remember to replace your air filters as often.
Another common cause of excessive dust is leaky ductwork. This is an issue that is a bit more challenging to fix. Over time, small gaps can form in the ductwork, caused by age, poor workmanship, or damage. The gaps then allow dust to flow in at any point past your filter, right into your vents and home.