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The Truth About Furnace Filters Why Expensive Isnt Always Better

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Debunking a Common HVAC Myth

One of the most persistent myths in home heating maintenance is that the more expensive your furnace filter is, the better it will be for your heating system’s performance. As HVAC professionals serving Edmonton and surrounding areas, we regularly encounter homeowners who’ve been misled by this costly misconception.

Here’s the truth:

1. Higher-priced filters aren’t necessarily more effective
2. Some expensive filters can actually reduce airflow
3. The best filter depends on your specific needs

Understanding Filter Ratings

MERV (Minimum Efficiency Reporting Value) ratings indicate a filter’s ability to capture particles. While high MERV ratings catch more particles, they can restrict airflow, making your furnace work harder. For most residential systems, a simple MERV 8-11 filter provides adequate filtration without compromising efficiency.

What Really Matters

Instead of focusing on price, consider:
– Regular filter replacement (every 1-3 months)
– Proper filter size and fit
– Your home’s specific needs (pets, allergies, etc.)
– Your furnace manufacturer’s recommendations

The Bottom Line

Save your money and stick to mid-range filters with proper MERV ratings. The key to maintaining your furnace isn’t spending more on filters – it’s consistent maintenance and timely replacements. Remember, the best filter is one that’s changed regularly and matches your system’s specifications.

Keep your heating system running efficiently by focusing on what truly matters: regular maintenance, proper installation, and appropriate filter selection based on your specific needs.