Patching an Old HVAC System
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Patching an Old HVAC System

When I married my husband ten years ago, I reluctantly agreed to move into the older brick home he already owned. I knew the house was outdated. Unfortunately, I didn’t have any experience renovating an older place. Immediately, I noticed the old central air conditioning unit in the home. After thoroughly inspecting the equipment, I was afraid the ancient unit wouldn’t make it through my first summer in my new place. Thankfully, I was wrong. After ten years, this same air conditioning system is still running smoothly. However, it has received some diligent care from a reputable HVAC contractor over the years. On this blog, you will discover the ways an HVAC contractor can restore an older air conditioning unit.


Patching an Old HVAC System

3 Things To Check When Changing Your Furnace's Filter

Mary Gonzalez

If you have a central furnace unit that heats your home, you probably want to keep it in optimal condition through proper furnace maintenance so it can effectively and efficiently keep your home warm. A major part of this is changing the filter to keep the air flow unobstructed and improve your home's air quality. To do this, check the three following items while replacing your old filter.

Make Sure The Thermostat Is Off

Before you change the filter, make sure your thermostat is switched off or set to the lowest setting possible so it does not turn on. While the filter is out of the unit, you don't want the heat to kick on and blow excessive dust through the furnace and throughout your home.

Check The Slot For Dust After Removing The Old Filter

Once you have removed the old filter, use a flashlight to check the slot for excess dust before replacing it with a new one. Especially if the filter itself has a thick level of debris on it, the dust could have spilled over into the surrounding unit casing.

If you find large clumps of dust inside the slot, you can remove it using one of two methods. First, you can use the crevice tool on your vacuum cleaner if it is long enough and narrow enough to fit into the slot.

Second, you can wrap a clean rag around the handle of your broom. Wet the cloth, then wring it out as much as you. Then, slide it into the slot, and move it back and forth to remove the dust.

Double-Check The New Filter's Air Flow Direction

After the slot has been cleaned out, it is time to put the new filter into the furnace. Before you do so, however, look for an arrow that indicates air flow direction on both the furnace and the filter, and make sure they match after putting the new filter in the slot.

Putting in a filter facing the wrong way decreases its ability to remove dust particles from the air. It also decreases your furnace's ability to circulate air throughout your home.

Changing your furnace's filter every month during cold weather can prevent dust buildup inside the unit, as well as improve its ability to efficiently heat your home. For more information about keeping your heater's unit working properly, you may want to contact an HVAC contractor who performs regular furnace maintenance.