the latest news from David and Goliath HVAC

When your heating and cooling system isn’t working as efficiently as it should, the problem might not be with your HVAC unit itself. Instead, it could be hiding in your ductwork. That’s where hvac duct repair comes in. Over the years, we’ve seen countless homeowners in Dallas, Gastonia, and Charlotte struggle with high energy bills and inconsistent temperatures. They later discovered their ducts were the real culprit. At David & Goliath HVAC, we specialize in diagnosing and fixing duct problems

When your air conditioning system needs service, you might notice our technicians arrive with specialized equipment. One of the most important tools we use is a refrigerant recovery machine. This device allows us to safely remove refrigerant from your HVAC system before performing repairs. In fact, this critical piece of equipment protects both the environment and ensures your system gets the proper service it deserves. Understanding what these machines do and why they’re necessary helps you appreciate the professional care

When we talk to homeowners about comfort and energy efficiency, the conversation inevitably turns to HVAC ductwork. Your ductwork is the circulatory system of your home’s heating and cooling system. Yet it’s one of the most overlooked components. In fact, poorly designed or damaged ductwork can waste up to 30% of your conditioned air. This happens before the air ever reaches the rooms you’re trying to heat or cool. That’s money literally disappearing into your walls, attic, or crawlspace. We’ve

When your air conditioner won’t turn on or your heating system struggles to start, the culprit is often a small but critical component. This component is known as an HVAC capacitor. We’ve seen this issue countless times across Dallas, Gastonia, and Charlotte. In fact, it’s one of the most common reasons homeowners call us during the heat of summer or the chill of winter. Understanding what this component does can help you recognize when something’s wrong. As a result, you

When your air conditioning stops working on the hottest day of summer, you might wonder what the HVAC technician will bring to fix the problem. Understanding the HVAC tools professionals use can help you appreciate the complexity of the job. This is why calling a licensed expert is essential. While you won’t need these specialized instruments yourself, knowing what goes into proper HVAC service explains why professional diagnostics and repairs are worth every penny. At David & Goliath HVAC, we

When your air conditioner stops blowing cold air on a sweltering summer day, the problem often comes down to one crucial component: the AC refrigerant. This special chemical compound is the lifeblood of your cooling system. Yet many homeowners don’t fully understand what it does or why it matters so much to their comfort. At David & Goliath HVAC, we’ve seen countless air conditioners fail because of refrigerant issues that could have been caught earlier. That’s why we want to

If you’re shopping for a new air conditioning system, you’ve likely heard about r454b refrigerant. You may also be talking with HVAC contractors about replacements. This newer refrigerant is quickly becoming the industry standard. Meanwhile, we’re phasing out older refrigerants to meet environmental regulations. At David & Goliath HVAC, we’re helping homeowners throughout Dallas, Gastonia, Charlotte and surrounding areas navigate this transition. That’s why we want to explain what this refrigerant is. We’ll also cover why it matters and what

Have you ever wondered how your air conditioner actually makes your home cooler during those sweltering North Carolina summers? The magic happens through the cycle of refrigerant. This fascinating process transfers heat from inside your home to the outdoors. At David & Goliath HVAC, we believe understanding this essential process helps you recognize when something isn’t working quite right. Plus, it helps you know when it’s time to call in professional help. What Is the Refrigerant Cycle and Why Does

If you’ve been shopping for a new air conditioner recently, you’ve probably heard technicians or salespeople mention R32 refrigerant as the next big thing in cooling technology. Since we started installing systems with this newer refrigerant here in Dallas, NC and throughout the Charlotte metro area, homeowners have asked us countless questions about what makes it different. That’s why we wanted to break down everything you need to know about this refrigerant type. We’ll cover its environmental benefits and how

When summer heat hits Dallas and Gastonia, many homeowners crank up their air conditioning. However, they often overlook a simple way to boost comfort and slash energy costs. Setting your ceiling fan direction for summer properly can make your AC’s job easier. The right fan rotation creates a cooling breeze that makes you feel up to 8 degrees cooler. We’ve helped countless homeowners in the Charlotte area discover that their ceiling fans were spinning the wrong way all season long.

If you’ve heard discussions about R410A refrigerant lately—whether from an HVAC technician, a neighbor, or online articles—you’re probably wondering what makes this refrigerant so important. At David & Goliath HVAC, we work with R410A systems every single day in Dallas, Gastonia, Charlotte, and throughout the surrounding areas. This refrigerant has become the standard in modern air conditioning units. However, many homeowners don’t fully understand what it is, why it matters, or how it affects their cooling system’s performance. That’s why

Staying on top of the latest HVAC news can help you make smarter decisions about your home’s heating and cooling systems. The HVAC industry is constantly evolving, with new technologies, efficiency standards, and best practices emerging every season. For homeowners in Dallas, Gastonia, Charlotte, and the surrounding North Carolina areas, understanding these developments means better comfort, lower energy bills, and fewer unexpected breakdowns. That’s why David & Goliath HVAC is here to break down what’s happening in the heating and

If you’ve noticed increased static electricity, cracking wood floors, or dry skin during the colder months, you’re likely dealing with low indoor humidity. Understanding how to identify when you need professional humidity solutions is essential for your comfort and health. This is especially important here in Dallas, NC, where winter air can be particularly dry. Low humidity doesn’t just make you uncomfortable—it can also damage your home, aggravate respiratory issues, and even increase your heating costs. However, the good news

When winter arrives in the Charlotte and Dallas, NC area, many homeowners notice their skin feeling dry. Additionally, they experience increased static electricity and persistent coughs that won’t go away. These uncomfortable symptoms often point to one common problem: low indoor humidity. If you’re wondering how to increase humidity in your house during those cold, dry months, you’re not alone. Low humidity is a widespread issue that affects both comfort and health. However, the good news is that there are