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Calculating Cooling: Load-Factor Definitions

Once managers have completed the list of data center equipment, they can calculate the actual cooling load the space requires. Below are load-factor definitions needed for this step in the ...

Replacing Chillers: Benefits Beyond Energy Effici...

Installing new chillers creates several miscellaneous benefits besides energy savings. New machines can offer features that include: VFDs for better part-load operation and more stable wate...

New-Generation VFDs Offer Constant Power Factor

Earlier-generation VFDs reduced energy use effectively, but they presented some drawbacks. One drawback was noise. When operating at reduced speeds, VFDs induced vibrations in motor laminat...

Can You Vacuum Seal Your Home for Maximum Insulat...

Can You Vacuum Seal Your Home for Maximum Insulation? 03/02/16 Nothing beats insulation for conserving your treated indoor air and keeping heat and air conditioning bills to a minimum. Hom...

Learn About the Next Big Breakthroughs in HVAC Ef...

Learn About the Next Big Breakthroughs in HVAC Efficiency 03/23/16Improving our energy efficiency has benefits for residents across the United States. By reducing the amount of energy we u...

How to Resolve Heating Disputes with Your Family

How to Resolve Heating Disputes with Your Family 01/26/16It's an unfortunate fact of life – not everyone who shares a home has the same room temperature preferences. And sometimes, minor d...

R-22 Conversion: Provide a Baseline of Refrigeran...

Even if a manager’s goal is to move away from R-22 and other chlorine-containing refrigerants, not all facilities will be able to replace their systems immediately, nor should they. While i...

Use Outdoor In-Ground Heating for Convenience and...

Use Outdoor In-Ground Heating for Convenience and Safety 02/17/16 Have you ever thought about extending your heat and air conditioning system outside your home? Usually, homeowners do ever...

Make Your HVAC System More Efficient for Earth Day

Make Your HVAC System More Efficient for Earth Day 04/20/16 It’s almost Earth Day, and homeowners all over the country are thinking about the positive changes they can make this year to i...

Rent or Buy Cooling Equipment? Three Consideratio...

Three factors affect the decision to purchase or rent: duration of the need, criticality, and lead time available to install the cooling equipment. If the application calls for central prim...

DDC System Controls Sensitive Hospital Environment

Hospitals have energy requirements unlike any other commercial or institutional facility, due to indoor air quality (IAQ) demands and expanding equipment needs. So closely monitoring the di...

Department of Energy Releases Most Far-Reaching H...

Department of Energy Releases Most Far-Reaching HVAC Conservation Rules Yet 02/24/16 The federal government is continuing its push toward greater national energy efficiency. Late last year...

Chillers: Examine Life-Cycle Costs

When managers begin investigating whether to replace or repair a chiller, the first step is to compile the life-cycle cost of a new system and compare this figure to the cost of continuing ...

Storm Damage Attracts HVAC Scam Artists

Storm Damage Attracts HVAC Scam Artists 05/04/16 Most homeowners in areas that experience severe weather know they should be on the lookout for fly-by-night roofing repair companies. These...

Use Heat Mats to Prevent Ice Buildup on Your Roof

Use Heat Mats to Prevent Ice Buildup on Your Roof 03/16/16Snow and ice on your roof can cause major problems during the winter. Too much snow can actually collapse a flat roof, and ice bui...

Flood Recovery: Cleaning and Rebuilding Mechanica...

The Iowa Advanced Technology Lab was one of the first buildings Heater and his team addressed. Vibrations or high humidity and temperature levels can negatively affect the research facility...

Working Smoke Detectors Can Save Your Life

Working Smoke Detectors Can Save Your Life 02/10/16 For most residents of the United States, winter heating is essential. Whether you use a furnace, a boiler, a woodstove or a heat pump, f...

What is the Greenest Way to Heat Your Home?

What is the Greenest Way to Heat Your Home? 04/06/16If you want to live in a green home, the efficiency of your heat and air conditioning system is the most important factor. That's becaus...

Attic Insulation Upgrades May Increase Home Resal...

Attic Insulation Upgrades May Increase Home Resale Value 04/27/16 When you think about remodeling or upgrading your home, you probably think about things like new kitchens or bathrooms, lu...

Green Building Boom Means Big HVAC Savings

Green Building Boom Means Big HVAC Savings 03/09/16American housing stock is more energy-efficient than ever, and the trend is only poised to accelerate. The green sector of the constructi...

Properly Diagnosing Chiller Life Cycles

The question of whether to repair or replace a chiller or cooling tower sometimes yields an expensive answer. To justify this capital investment, maintenance and engineering managers often ...

What Do Those Funny HVAC Noises Mean?

What Do Those Funny HVAC Noises Mean? 05/11/16 When you turn on your air conditioning system for the first time each summer, you may remember how much you love the sound of that gentle wh...

HVAC Maintenance and Energy Savings

In spite of years of studies, demonstration programs, and published stories to the contrary, most facility organizations today still operate in a reactive mode. Though facility executives k...

Insulate Your Windows with Bubble Wrap and Water

Insulate Your Windows with Bubble Wrap and Water 01/28/16 Sometimes, the best solutions to your heat and air conditioning bills can also be the simplest and least expensive. Take your wind...

Chiller Reliability: Averting Failure

Many issues arise after a chiller is well into its performance life. Simple safeties, switches, bearings and internal micro-devices can fail, causing the machine to simply turn off and go i...

Fans, Centrifugal Chillers Common VFD Applications

Manufacturers have designed VFDs for use with single- and three-phase induction motors. Three applications provide the greatest benefits: those that require or can benefit from variable-spe...

Smart Chairs Can Be a Valuable Complement to Your...

Smart Chairs Can Be a Valuable Complement to Your HVAC System 02/02/16 Sometimes it can seem like your furnace has a rather blunt, if effective, approach to heating your home for the winte...

Chiller Maintenance and Operations Improves Energ...

Early on in their efforts to make the hospital more efficient, managers at Highland did address the low-hanging fruit. But they also built support for capital projects. The hospital bought ...

Variable-Frequency Drives Match System Output, Lo...

Variable-frequency drives (VFD) are one of the most effective tools managers can use to control a facility’s energy use. As organizations struggle to curtail costs in every possible way, VF...

Costs of the Most Common HVAC Emergencies

Costs of the Most Common HVAC Emergencies 04/13/16You never know when an emergency will strike. Unfortunately, 25 percent of American households have no savings on hand to help them pay fo...

How to Keep Your Hardwood Floor Warm

How to Keep Your Hardwood Floor Warm 03/30/16Hardwood flooring is one of the most elegant features a home can have. Unfortunately, the wood can also be unpleasantly cold in the winter, and...

Variable-Frequency Drives Reduce Maintenance, Ext...

While managers most often cite energy management as the reason for installing a VFD, the technology offers other significant benefits, including reduced motor and drive maintenance and long...