When testing and diagnosing the operation and performance of an HVAC system, the timing and measurement are critical. Ideally, the system should be calling for full heating or cooling, and fan speed so it can reach a stable operating condition. Let’s take a closer look at what constitutes stable operating conditions so your test data …
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When it comes to ethics, I love to tell this story. I once called a plumbing service company to investigate a leak in our shower above the kitchen. They quoted me $195.00 for the work. Two hours later I had five holes in my kitchen ceiling, a messy bathroom, and no conclusive source of the …
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Let’s talk airflow. We live back in the woods on a half-acre with fifteen 100-foot tall oak trees. For years I’ve imagined sharing leaf blowing airflow lessons with my fellow airheads. Let’s take a look at the mad airflow skills you can master while blowing leaves. Fascinating Statistics “If you don’t measure, you’re just guessing.” …
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Responses from an article on benchmarking that ran in Contracting Business.com magazine’s Hotmail email newsletter nearly a year ago continue to appear in my inbox. This new field evaluation and test method is being included in progressive service and maintenance agreements throughout the industry. It is proving as beneficial to customers as it is for …
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When it comes to duct work, there’s lots of discussion kicking around about them being substantially undersized. Here’s a two-minute test that can check the size and performance of your duct system. The instruments are inexpensive and it takes less than 10 minutes to learn to do. Tons of Air Static pressure is a measurement …
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Like blood pressure in humans, static pressure impacts HVAC systems, positively or negatively, depending on what that pressure is. We all know that high or low pressure is bad for human health. The same is true when it comes to building static pressure as well. Taking a building’s static pressure lets you “see” the HVAC …
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What if you could offer your customers a system efficiency option of 57%, 78%, or 93%? No, this is NOT equipment-rated efficiency. It’s the operating system’s field-measured efficiency after installation and verification in a home. Here’s a sample proposal of the future. Field Measured System Efficiency Constant advancements in our ability to field measure the …
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You might find it difficult to relate HVAC and colonoscopy customer service. Let’s take a look at how the medical profession has recognized today’s consumer’s need to be more informed and comfortable about not only the services being delivered, but the expected outcome of those services as well. We’ll then examine how the HVAC industry …
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