Technical

Measuring Temperature And Humidity

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The indoor environment technician must measure water temperatures, as well as dry bulb and wet bulb temperatures of air. For example, you may have to measure the entering and leaving temperatures for a coil - both for air and for water. Accurate readings can be critical.
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Why Multiple Boilers Make Sense

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Although most systems are designed around one large boiler, when you think about how most heating systems operate, multiple smaller boilers can make a lot of sense.
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Multi-Building Internet Demand-Response System Tested

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Researchers at the Lawrence Berkeley National Laboratory (Berkeley Lab) Environmental Energy Technologies Division (EETD) have completed the first successful test of automated demand response in five large buildings.
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Certification Guide Provides Solid Reference

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HVACR service technicians, and aspiring technicians, now have a comprehensive guidebook to assist them in gaining various certifications: the HVAC Technician Certification Exam Guide.
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Forced Air Zoning: Friend Or Foe?

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Do you truly understand the advantages that zoning offers not only to customers, but also contractors? This article details the basic concept and benefits of zoning.
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Help Customers Reduce Heating Bills This Winter

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There are three overlooked sources of heat loss in the home - the folding attic stair, the fireplace, and the clothes dryer. Here are some tips and techniques to quickly and inexpensively seal and insulate these areas.
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Operations & Maintenance Focus Lowers Cost, Increases Efficiency

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There are numerous measures that may improve fuel-use efficiency and reduce energy consumption - and the accompanying cost. The office of Federal Energy Management Programs offers the tips here for federal facilities, but they are also applicable to commercial facilities as well.
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Protecting Small Hydronic Systems In The Winter

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In the fall and winter, Bell & Gossett gets many questions about protecting small residential hydronic heating systems. They cluster around two topics: (1) Adding antifreeze to provide corrosion and freeze protection and (2) Laying up the system before an extended winter vacation.
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Be The Contractor Of Choice: Provide A Quality Installation

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A quality installation is an investment that can enhance your customer's comfort while saving them money over the life of their system. The federal government's Energy Star program provides the recommendations here to show that you are a quality contractor.
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Maximizing Chiller Efficiency

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Chillers are the single largest energy-using component in most facilities and can typically consume over 50 percent of the electrical usage. This article details steps that can be taken to help maximize chiller efficiency.
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2014 Energy Efficiency Forum

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

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NEWSMakers: Mark Satterfield

Mark Satterfield, founder and CEO of Gentle Rain Marketing Inc. and author of “The One Week Marketing Plan” talks about his book and the importance of HVAC blogging. Posted on Sept. 19.

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2014 National Plumbing & HVAC Estimator

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