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Humidifier Sales See Boost as Consumers Seek Better Health, Comfort

Homeowners are seeking solutions to improve comfort and IAQ. One device that does both is the humidifier.




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DriSteem Introduces Silver Ionization Filter

DriStreem announced the addition of a new Silver Ionization Filter to their catalog of products.




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Greenheck: Energy Recovery Ventilator

Greenheck has added three new models to its line of high-performance residential energy recovery ventilators (ERVs).




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Alleima: Compressor Valve Steel

The new material of the compressor valve steel Freeflex Versa contributes to designing smaller, more sustainable, and more energy efficient compressors for refrigerators, and freezers.




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Rheem to acquire Nortek Global HVAC

NGH, whose brand lines include Frigidaire, Maytag, Miller, Broan, Gibson, Intertherm, Partner’s Choice, and other private labels, will join Rheem’s Global Air division.




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New Milwaukee Tool Mississippi Factory is its Largest in U.S.

The new Milwaukee Tool factory in Grenada County, Mississippi, will employ more than 800 people and is Milwaukee’s eighth location in Mississippi. It is also the company’s largest manufacturing facility in the U.S.




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Tips for Improving Boiler Efficiency, Reducing Operating Costs, and Keeping Your Boiler Room Safe

As one of the larger contributors to a facility’s expenses, it is critical to incorporate preventative measures into regular maintenance and cleaning plans for boilers.




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Thermogenics Acquires Industrial Engineering


Thermogenics’ acquisition of Industrial Engineering Boiler further expands its service capabilities within the US Southeast.





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Troubleshooting Puzzle: A Walk-in Freezer That’s not Performing

In this month’s troubleshooting situation, you are responding to a restaurant manager’s call for service, and the equipment is a walk-in freezer.




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Get Ready For Walk-In Cooler And Freezer Regulations

The U.S. DOE will soon begin enforcing its 2017 rule that mandates minimum energy efficiency requirements for walk-in coolers and freezers.




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Warming Up Ice Cream Freezers To Reduce Energy Use

Unilever is launching two pilots to trial warmer ice cream freezer cabinets with an aim of reducing energy use and greenhouse gas emissions by approximately 20% to 30% per freezer.




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Staying Safe with CO₂: Key Basics You Need to Know

Although CO2 systems may seem a bit more complicated than HFC DX systems, they are actually quite similar, with the main difference being CO2’s higher pressure.




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Living Wall at University of Michigan Wins Green Wall Award

A living wall biofilter is an active filter system that removes contaminants and volatile organic compounds (VOCs) from indoor air.




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Lennox Runs First “Feel the Love” HVAC Install in Iowa

Through the program, Lennox helps families in need by donating a state-of-the-art HVAC system, then having the equipment installed by a local Lennox dealer free of charge.




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Low-GWP Compressors Meet Demand for Sustainable Solutions

End users are looking for low-GWP solutions, and compressor manufacturers displayed their options at the AHR Expo.




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Three Reasons Variable-Speed Compressors are the Answer for Heat Pumps

Read this white paper to learn more about why variable-speed compressors are the best solution for heat pump applications.




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ASHRAE 189.1: A Higher Standard for High-Performance Green Buildings, Pt. 1

In the quest to build more sustainably, organizations have set forth a variety of standards to realize high-performance green buildings.




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ASHRAE 189.1: A Higher Standard for High-Performance Green Buildings, Pt. 2

To realize high-performance green buildings, the place to start is improving HVAC – centering on ventilation/efficiency.




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Three Ways to Use Customer Data to Optimize Your HVAC Business for Success

HVAC contractors have an underutilized tool available to help optimize their businesses: customer data.




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Rheem Opens Innovation Learning Center in Arkansas

Rheem's new Innovation Learning Center is a $5 million facility designed to meet the training needs of specialists in Rheem's air-conditioning and water-heating divisions.




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Free Training Offered For CO₂, R-290 Refrigeration Systems

NASRC to offer free training event for refrigeration technicians in St. Louis who want to learn more about natural refrigerants, such as CO₂ and propane.




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Free Hands-On Training Offered For CO₂, R-290 Systems

NASRC to offer free training event for refrigeration technicians in Pittsburgh who want to learn more about natural refrigerants, such as CO₂ and propane.




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Free Natural Refrigerant Training Summit

NASRC will offer free comprehensive CO₂ and propane refrigeration training at its Natural Refrigerant Training Summit.




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How to Train the Trainers Who Will Prepare Gen Z for HVAC Careers

The most successful trainers will realize that the relationship Gen Z has with technology fits right in with the present mindset of the HVACR industry.




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Trade Groups Report Productive Meetings with Washington Lawmakers

The AHRI’s 2024 Policy Symposium brought more than 200 members, along with AHRI staffers and others in HVAC, to Washington for the lobbying effort, plus panel discussions, keynote speeches, and networking.




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EPA Sees Uptick in HFC Reclamation

EPA recently reported an increase in the total volume of HFCs reclaimed in 2023 compared to 2022.




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Three-Phase Power and Voltage Imbalances

In HVAC, we rarely need to have a deep understanding of electrical design. But there are a few cases where a little understanding can go a long way in identifying issues before they cause trouble, and that is the intent of this short article.




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Variable Speed Technology is Trending in Tomorrow’s Motors

Here is the trending technology that three motor manufacturers are saying will improve the future of motors in HVAC.




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2019 International Roundtable Annual Meeting Recap

The 2019 International Roundtable met at the Renaissance Orlando at Sea World on April 16-18 for its Annual Meeting.




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Artificial Intelligence Smooths Exchanges Between HVAC Contractors and Customers

The AI features in communications software, such as voice-to-text and message-flagging, have made for faster, easier customer-contractor communications that are also more personalized and have less room for misunderstanding.




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DOE Seeks Information on Design and Construction of High-Performance Tenant Spaces

The U.S. Department of Energy’s (DOE’s) Building Technologies Office has released a request for information seeking stakeholder input on the design and construction of tenant spaces that achieve high levels of energy efficiency in commercial buildings.




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Acco Engineered Systems and All Area Plumbing Join Forces

Acco Engineered Systems announced that it will join forces with All Area Plumbing, a regional design-build plumbing contractor serving Southern California. Adding All Area Plumbing’s capabilities, Acco said it will strengthen its position as one of the largest mechanical contractors in the western United States.




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HVACR Firm Cold Craft Launches Mechanical Engineering Department

Cold Craft Inc., which specializes in mechanical installation for new construction, renovation, and retrofit of commercial, residential luxury, and industrial facilities, announced it has added an Engineering and Planning Department. 




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New Refrigerants are (Almost) Here - What You Need to Know

Home builders need to begin preparing for the big refrigerant shift that is quickly approaching.




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Greenheck: HVLS Fan

These two products were added to the high-volume low-speed (HVLS) fans line.




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AMCA to Present Free Webinars on Air-System Engineering, Technology

AMCA will launch the Air System Engineering and Technology (ASET) series of free webinars on topics impacting air systems in buildings.




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Greenheck: Commercial Exhaust Fan

This commercial product’s constant CFM EC motor technology ensures performance set points resulting in improved IAQ.




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Follow These Three Vital Steps to Properly Resize a Duct System

In order to understand the foundational principles of duct sizing, a thorough study of ACCA Manual D is a great place to start.




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Cambridge Engineering Inc.: Evaporative Cooling

This unit is a semi-custom fabricated air handler that can utilize direct or indirect evaporative cooling or a combination of both to meet specific usage and dimensional requirements.




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Trane and STULZ USA Announce Strategic Agreement

Trane and Stulz USA announced a strategic OEM supply sales agreement for the United States and Canadian markets.




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Troubleshooting Puzzle: An Ice Machine That’s not Keeping up With Demand

In this puzzle, a restaurant manager complains that one of the ice machines in his high-volume establishment isn’t producing enough ice.




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OEMs: Hospitality Industry Seeks Improved Indoor Air Quality

Responding to increased public awareness of the importance of healthy indoor air quality, the hospitality industry is stepping up its game when it comes to providing guests with fresher, cleaner, and, sometimes, sanitized indoor air.




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Fabric Duct and Specialized Airflow Used to Keep Swimmers Healthy

How can an effective airflow strategy ensure quality ventilation and optimal indoor air quality, without breaking the budget?




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Tape Can Help Keep Clients Warm During Chilly Months While Lowering Energy Consumption

Properly sealing and maintaining heating and cooling ducts is a low-cost measure that can improve energy efficiency.




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Project Files: Episode 37 — LEED Gold Sheet Metal Facility Retrofit

In 2017, RenewAire moved into a 110,000-square-foot building and retrofitted it as one of the nation’s few LEED Gold-certified industrial facilities.




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Three HVAC System Vital Signs That Help You Identify Unhealthy Systems

Poorly installed HVAC systems work twice as hard as they should and suffer from a wide variety of invisible health problems.




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Tips for HVAC Contractors Working With Sheet Metal

While some contractors fabricate sheet metal in-house and others outsource that work, both groups can benefit from a few best practices.




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Three Invaluable Lessons I Learned About Selling Duct Upgrades

Here are three lessons I learned while setting out to improve my skills selling duct upgrades.




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How to Adjust Blower Speeds Using Fan Law Two

I hope you see the potential for this formula. It will make your life easier and help you predict changes to blower speed settings with more accuracy and reliability.




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Dandelion Partners with Poughkeepsie-Based American Heating and Cooling

Poughkeepsie, New York - Dandelion, a geothermal company that started at “X” at Google’s parent company Alphabet, announced its newest installation partner: American Heating and Cooling.