Extra Edition

Btu Buddy 20: A Training Lunch With Btu Buddy

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In this edition of the Btu Buddy series, Bob and Btu Buddy meet for a training lunch after the previous day's low oil in the sight glass service call. Btu Buddy discusses oil and oil circulation in an A/C system.
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Alternatives For Dehumidification In Commercial Buildings

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Controlling humidity in commercial buildings used to be a difficult undertaking. The advent in recent years of alternative dehumidification technologies has made the dehumidification process far more energy efficient and affordable.
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The Four Things That Drive Your Customers Crazy

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The service you provide can either soothe - or increase - a customer's feelings of panic and irritation. That's why a better understanding of common complaints from customers about contractors can help you a lot.
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Hot Topics, Cool Solutions 9: The Power Nap, And More

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The hours we work during the busiest times are extraordinary. I find myself struggling to stay awake at work or, worse yet, when I'm driving. But, I keep pushing myself because of the workload. Is there someway to make this better?
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Electric Motor Brake Horsepower Calculations

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These motor calculations are useful wherever electric motors are used. These simple calculations can be used to solve motor installation and troubleshooting problems in a variety of applications.
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Energy Efficiency Pays

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Most energy-efficient homes have dozens of little improvements that individually add little to construction costs, yet together yield big savings.
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Btu Buddy 19: Compressor With Low Oil Level

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In this installment of the Btu Buddy series, Bob encounters a compressor with very low oil level. Btu Buddy explains that the low oil level is a normal function of this system for this time of year.
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Benefits Of Ultrasonic Testing In Determining Pipe Corrosion

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While improvements in instrumentation have moved ultrasonic testing technology into more areas, its benefits to facility managers, plant engineers, and technicians as a diagnostic and predictive tool are still widely unknown and underutilized.
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The Positive Power Of Negative Preparation

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Being a positive thinker does not mean that you should refuse to acknowledge the way things are. The true positive thinker acknowledges potential and existing negative circumstances and reactions, and engineers a plan to overcome them, to achieve positive results.
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Ammonia: It Smells Like A Safety Challenge

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For nearly two centuries ammonia has been used as a refrigerant. Its drawback is that in quantities much larger than a "sniff" it is poisonous. With proper precautions, however, the benefits of ammonia are compelling.
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Jeremy Begley, home-performance specialist and Web and social media manager with National Heating and Air Conditioning Co. in Cincinnati discusses how and why you should add home-performance philosophies to your contracting repertoire. Posted on Sept. 12.

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