Modern HVAC systems depend on channel boxes to guarantee ideal air filtration and framework proficiency. Nonetheless, mortgage holders and experts might find that their current 18×20 channel box size restricts their choices about choosing air channels. Converting an 18×20 filter box to a 20×20 size is a reasonable arrangement that gives access to more normal channel sizes, further developed wind current, and improved framework execution. This article investigates the bit-by-bit process, the apparatuses required, and the advantages of this change.
Why Converting 18×20 Filter Box to 20×20?
Better Filter Availability
The 20×20 filter size is more widely available in retail and online stores, making replacements more convenient.
Improved Airflow
A bigger filter permits more air to move through the framework, decreasing the burden on the central air unit.
Enhanced Filtration
Moving up to a bigger size can bring about better filtration, particularly in the event that your home requires higher productivity channels for allergens or residue control.
Cost-Effectiveness
Standard-sized filters, for example, 20×20, are frequently more affordable because of higher creation volumes.
Tools and Materials Needed for Conversion
Before beginning the conversion, gather the following tools and materials to ensure a smooth process:
- Measuring tape for accurate dimensions
- 20×20 filter grille
- Sheet metal or duct extension material
- Metal shears or tin snips
- Screws or rivets
- Drill with appropriate bits
- Duct tape or HVAC sealant
- Work gloves and safety goggles for protection
Step-by-Step Process
Step 1: Measure the Existing Filter Box
Begin by measuring the internal and external dimensions of the 18×20 filter box. This ensures accuracy when cutting or resizing the box. Confirm the exact dimensions of the new 20×20 grille to plan your modifications accordingly.
Confine the 18×20 grille by unscrewing it from the channel box. Cautiously assess the encompassing region for any checks or harm that might require consideration prior to continuing.
Step 3: Prepare the Filter Box for Expansion
Using metal shears or tin snips, cut the filter box opening to match the dimensions of the 20×20 grille. Take care to cut evenly, ensuring that the opening is square and smooth. If necessary, use a file to remove sharp edges.
Step 4: Modify or Extend the Box
If the depth of the box needs adjustment, create an extension using sheet metal. Append the augmentation safely to the current box with screws or bolts. Seal all creases with pipe tape or air conditioning sealant to forestall air spills.
Step 5: Install the New Grille
Align the new 20×20 filter grille with the expanded opening. Utilize a drill to protect the grille set up with screws. Make sure that the grille fits firmly to stay away from holes that could prompt air spillage.
Step 6: Insert the 20×20 Filter
Place the 20×20 air filter into the newly installed grille. Ensure it fits snugly without any wiggle room. Close the grille securely.
Step 7: Test the System
Turn on the air conditioning framework to check for legitimate wind current and guarantee there are no air spills. Listen for unusual noises, which could indicate a loose grille or improper fit.
Benefits of Proper Conversion
A well-executed conversion from an 18×20 filter box to 20×20 offers numerous advantages:
Ease of Maintenance: With a more standard filter size, replacements are quicker and simpler.
Energy Efficiency: Larger filters reduce system strain, leading to lower energy consumption.
Long-Term Savings: Improved airflow and reduced system wear lower maintenance costs.
Cleaner Air: A superior fitting, bigger channel upgrades indoor air quality.
Common Mistakes to Avoid
Inaccurate Measurements
Precision is key. Failing to measure correctly can lead to air leakage or improper grille installation.
Poor Sealing
Always seal seams and edges with duct tape or HVAC sealant to prevent efficiency loss.
Skipping a Test Run
After installation, always test the system to ensure everything functions as expected.
When to Call a Professional
While this transformation is reasonable for those accomplished with do-it-yourself projects, mortgage holders uncertain about working with sheet metal or air conditioning frameworks ought to consider recruiting an expert. An air conditioning specialist can get done with the task effectively, guaranteeing ideal framework execution and well-being.
For more, read: What Do You Call a Home Improvement Contractor?
Conclusion
Converting an 18×20 filter box to a 20×20 size is a brilliant update that can further develop your central air framework’s usefulness and set aside your cash over the long haul. With the right devices, materials, and an unmistakable comprehension of the interaction, this undertaking is reachable for most Do-It-Yourself fans. Whenever done accurately, it guarantees a better wind stream, cost investment funds, and admittance to standard filter sizes.
