Use either the filter grill or the filter inside the furnace. When changing the filter, use an anti-bacterial spray (Febreeze is a good choice) on the filter to help kill bacteria going through the filter as well as distributing a fresh scent throughout the house. …

One simple way to improve HVAC airflow

1. Perform HVAC airflow measurement and testing to determine the severity of the problem.
2. Clean or replace air filters.
3. Clean fan blades.
4. Inspect & adjust motors.
5. Inspect your ductwork for blockages or leaks.
6. Clean coils.
7. Inspect your HVAC design and recommend modifications.

When a furnace filter is placed backwards, the fibers can’t do their job properly. This means your furnace has to work harder to generate the same air flow, resulting in increased energy costs. Particles are also allowed to build up irregularly, making the furnace working even harder to draw air.

By installing your filter backwards, air will have a harder time flowing through the filter and your air handler will have to work harder to make up for the loss of airflow. That arrow must always face toward the furnace and away from the return duct that carries the air in need of heating or cooling.

Placing an air freshener like what you might use in your car in the same manner as the dryer sheet. Placing dryer sheets or air fresheners inside your registers. May as well sweep these too while you have the vacuum out. Make sure the area surrounding your furnace is clean and odor free.

When it’s time to install a new furnace filter, add a few drops of your favorite essential oil to the filter screen with a dropper. A few drops will keep your home smelling fresh for a few weeks, and you can reapply essential oils to your filter as the smell fades.

One-inch pleated filters quickly get dirty because they’re designed to catch more airborne contaminants. Think of 1-inch pleated air filters as a fine fish net with a very small gaps: it catches everything from big to small fish, but that also means the net fills up with fish faster (say that 3 times fast).

If the filter is not installed correctly, then the air can flow around the filter and not into it. When that happens, the filter won’t get dirty because all that air isn’t going anywhere near it.

A dirty air filter restricts the flow of cold air, causing it to build up inside the air conditioner and lower the internal temperature. Uneven Cooling: Even if it’s not enough to cause freezing, that restricted airflow isn’t good for your air conditioner’s cooling power.

Technically, you can temporarily run a furnace without a filter. The consequences of running a furnace without a filter include: Poor air quality: For one, not having a filter in place means there is nothing to prevent dust and debris from being sucked into your furnace and recirculated throughout your home.

Without a filter there to trap air pollutants, your home’s air quality will deteriorate. That’s because the same air contaminants will just circulate through your home. But what’s worse is that you’re likely bringing even more pollutants into your home on a daily basis.

A clogged furnace filter can cause a furnace to shut off. Dirty filters are the most common cause of furnace problems. Dust and dirt restrict airflow—and if the filter gets too clogged, the heat exchanger will overheat and shut off too quickly, and your house won’t warm up.

Yes, a furnace can catch fire. Your furnace’s air filter is blocked.

Risk of a Ventilation Fire In extreme cases, a dirty air filter may become so clogged that the filter itself becomes sucked into the system, compromising air flow through the filter. This situation poses a serious fire hazard and can cause extreme damage to your HVAC unit and your home.