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Category: Maintenance

Technician removing an air filter from a home furnace to check furnace filter sizes and proper fit.
Furnace

Furnace Filter Sizes: How to Choose the Right One

Most homeowners try to choose the right furnace filter, yet the process often feels confusing. At Pointer Cooling and Heating, we hear this every season. People want healthier air, fewer allergy triggers, and better airflow, but they aren’t always sure where to begin. Because the market offers so many furnace filter sizes, it helps to understand what each option means before you buy. When you know how sizing works, you

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November 29, 2025 No Comments
Technician showing how to change furnace filter for better airflow and indoor air quality
Furnace

How Often to Change Furnace Filter for Best Air Quality

When homeowners ask how often to change a furnace filter, I have a good idea of what’s going on in their home. Airflow feels weaker. Dust shows up faster. Sometimes the house just feels a little stale. I’ve seen this pattern many times during service calls for Pointer Cooling & Heating, and the truth is simple: your furnace filter does more for your home than most people realize. It protects

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November 28, 2025 No Comments
HVAC technician inspecting the inside of a furnace for possible cracked heat exchanger issues
Furnace

How to Tell If You Have a Cracked Heat Exchanger

When a cracked heat exchanger goes unnoticed, it’s not just a comfort issue—it can be a serious safety risk. At Pointer Cooling and Heating, we’ve seen firsthand how a small crack in this component can cause major issues, from reduced efficiency to dangerous carbon monoxide leaks. The good news? With a little awareness, you can spot the warning signs early and prevent a serious safety hazard. What Does a Heat

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November 12, 2025 No Comments
HVAC technician performing furnace capacitor maintenance inside a heating system
Furnace

Furnace Capacitor: Signs, Replacement, and Repair Guide

When your heating system suddenly stops blowing warm air, the problem often traces back to one small but crucial part — the furnace capacitor. This tiny component stores and releases energy to help your blower motor start and keep running smoothly. Without it, the system can’t move air properly, leaving your home cold and uncomfortable. At Pointer Cooling and Heating, we’ve replaced countless capacitors over the years, and believe me

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November 10, 2025 No Comments
Family relaxing in a bright living room with clean indoor air from whole-home air purifier and humidifier systems
HVAC

Air Purifier vs Humidifier: Which One Does Your Home Need?

If you’ve ever dealt with dry air or constant sneezing, you’ve probably asked yourself this question: Which one helps more—an air purifier or a humidifier? At Pointer Cooling and Heating, we hear it all the time. And honestly, it’s a good question. The truth is, both devices improve indoor comfort, but they do it in totally different ways. Let’s clear the air (literally) and break down the air purifier vs

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November 8, 2025 No Comments
Close-up of UV-C light used in HVAC system to kill mold and improve indoor air quality.
HVAC

Does UV Light Kill Mold? What the Science Says

If you’ve ever dealt with that stubborn musty smell coming from your HVAC system or noticed mold near your vents, you’ve probably wondered — does UV light kill mold? As someone who’s worked with countless heating and cooling systems here at Pointer Cooling & Heating, I can tell you this question comes up all the time. The short answer? Yes, UV light can kill mold — but how well it

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November 6, 2025 No Comments
Clean and dirty HVAC air filters showing how buildup affects airflow, efficiency, and overall air filter MERV rating performance.
HVAC

Air Filter MERV Rating Explained: What It Means for You

If you’ve ever shopped for an air filter and felt lost staring at all those numbers and ratings, you’re not alone. Most homeowners just want cleaner air and a system that runs efficiently—but that’s where understanding your air filter MERV rating makes all the difference. At Pointer Cooling and Heating, we’ve spent years helping people figure out which filters actually make sense for their home instead of just buying whatever

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November 1, 2025 No Comments
Digital thermostat showing cool or heat mode switch for seasonal comfort in a home
Air Conditioning Tips

When to Switch Between Cool or Heat for Best Comfort

If you’ve ever stared at your thermostat wondering whether to set it to cool or heat, you’re definitely not alone. Every year, when the seasons shift, homeowners everywhere find themselves asking the same thing. At Pointer Cooling and Heating, we’ve helped plenty of folks figure out that sweet spot between comfort and efficiency. The trick isn’t just flipping a switch—it’s knowing when and how to make the transition. Understanding When

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October 31, 2025 No Comments
Modern furnace and duct system installed in attic space showing proper airflow and insulation
Furnace

How Long Does a Furnace Last? Signs It’s Time to Replace

If you’ve ever found yourself asking, “how long does a furnace last?” you’re not alone. At Pointer Cooling and Heating, we hear that question all the time—usually right when the weather starts cooling off and people are wondering whether their system can make it through another season. The answer depends on a few things: maintenance, usage, and the quality of the unit itself. But there are some clear signs that

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October 25, 2025 No Comments
HVAC tech opening a furnace panel to diagnose why the furnace is blowing cold air
Heating

Why Is My Furnace Blowing Cold Air?

If you’ve ever stood in front of a vent wondering, “Why is my furnace blowing cold air?”—you’re definitely not alone. At Pointer Cooling and Heating, we hear that question all the time, especially when temperatures drop and people expect a wave of warmth instead of a blast of cold. While it’s easy to assume your furnace has completely failed, the truth is that most causes are simple and fixable once

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October 23, 2025 No Comments
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