Extra Edition

Pressurization Of Closed Hydronic Systems

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Most modern hydronic heating and/or cooling systems are closed systems that must be maintained at some minimum pressure. This would seem to be a simple concept, but it is surprising how often a lack of attention to the basics can cause all kinds of problems.
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Using Equipment Leasing To Strategic Advantage

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Most business executives are generally familiar with leasing. But executives facing lease vs. loan decisions may not fully know how the strategic use of equipment leasing can enhance financial performance and capital productivity.
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Btu Buddy 30: Repairing A Restricted Liquid Line

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In this installment of the Btu Buddy series, Bob goes on a no cooling call and finds a kink in the liquid line of the A/C system. Btu Buddy explains his choices for repairing the line.
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Hot Topics, Cool Solutions 19: Bonus Program Rules, And More

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We recently put in a bonus program to reward service techs and our sales are rising. But I'm concerned they may be out there recommending work that doesn't need to be done. Is there any way to keep them honest?
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Growing Your Business Through IAQ Particulate Profiling

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Concern about indoor air quality (IAQ) is driving customers to have their IAQ situation assessed and, if necessary, repaired. IAQ has generated so much awareness that you may want to consider offering IAQ assessments to all of your customers as an extra service.
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Laying Out Rectangular Duct Transitions

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Transitions are needed in almost every duct run to change the size or shape of the ductwork. This article explains how to lay out rectangular transitions.
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Backing Up Your Web Site Data: An Overlooked And Underused Necessity

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Over the last decade many businesses have made the Web a key revenue-generating channel. A natural consequence is that enormous amounts of valuable data are stored on computers, and computers tend to die from time to time. So a backup solution should be available.
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How To Increase Efficiency, Reduce Maintenance, And Improve IAQ With UV

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Mold spores are encountered everywhere. When they find the right environment, they'll multiply to the point of affecting HVAC performance and possibly occupant health. But there is a cost- and energy-efficient way to eliminate mold growth in HVAC systems - ultraviolet (UV) germicidal lamps.
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Btu Buddy 29: Outdoor Unit With Restricted Airflow

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In this edition of the Btu Buddy series, Bob finds an outdoor unit that has been enclosed by a deck. Bob and Btu Buddy come up with a temporary solution to restore adequate cooling and determine where to relocate the unit.
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Hot Topics, Cool Solutions 18: Written Processes, And More

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Every week somebody drops the ball and leaves something undone. It's so frustrating! We talk and you'd think they'd know what to do by now, but they don't. What can I do?
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2014 Energy Efficiency Forum

Highlights from the 25th annual Energy Efficiency Forum in Washington, D.C.

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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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2014 National Plumbing & HVAC Estimator

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