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Teledyne To Acquire Two Acquire Two Aerospace And Defense Businesses From Excelitas

Teledyne Technologies [TDY] on Wednesday said it has agreed to acquire two business units from Excelitas Technologies Corp. for $710 million in cash, one based in the United Kingdom that […]




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Kratos’ DeMarco Bullish On What Trump, With Help From Musk, Means For Startups And Non-Traditional Defense Companies

A second Trump administration committed to cutting federal spending could mean very good things for non-traditional defense companies and startups because of a focus on affordability, Eric DeMarco, the president […]




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Fluke Vibration Tester from Grainger

The Fluke 810 helps you locate and diagnose common mechanical problems and prioritize repairs. Tester includes laser tachometer, triaxial accelerometer and quick disconnect cable.




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RANCO Dual Pressure Control from Grainger

This control switches electrical loads from relays, fans and motors in HVAC and commercial applications in response to changes in refrigerant pressure.




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Air Handler Filter from Grainger

Help reduce energy consumption by choosing the Air Handler® MERV 10 high-capacity filter. A lower pressure drop means your motor works less to maintain the required airflow. 




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Is This What To Expect From Tesla Home HVAC?

As wildfires become more common, can future Tesla home HVAC system users expect the same sort of defense against poor air quality that its vehicles have?




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Takeaways From Honeywell’s 2023 Healthy Buildings Survey

Office workers across five markets have increased expectations when it comes to their building’s IAQ and carbon footprint and reported the responsibility falls directly on their employer or building manager.




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Precise Grow Environments From Precise HVAC Tech

Smarter HVAC equipment in indoor agriculture benefits both the technician and the grower, and the most-precise is yet to come.




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Historic Inn Wins Efficiency Award From Propane Council

Propane use at Ruby’s Inn has helped eliminate 5,200 metric tons of COequivalent. This is equal to the greenhouse gas emissions from 1,410 gasoline-powered passenger vehicles driven for one year.




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Letters From Our Readers: November 4, 2019

The article provided valuable information on maintenance and cleanliness issues related to refrigeration equipment in restaurants and c-stores.




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Five Tips to Get More HVAC Traffic from Google Local

Here, I provide actionable tips you can handle yourself, or you can hold your SEO company accountable for these.




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How Growth From HVAC Companies Could Put Them at Risk of Ransomware Attacks

As the size – and profits – of these companies continues to grow, they are likely to come under increasing levels of cyberattack.




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Loophole May Undercut Biden Proposal to Protect Workers From Heat

As extreme heat becomes more common, more of a spotlight is being put on worker safety, and a new app may be able to help.




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HVACR Contractors Can Learn a Ton from Equipment Cooling Capacity Tables

Don’t assume equipment capacity or conditions. Instead, do some digging and find the tables for the equipment you install and service.




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Healthcare Applications Can Benefit From Direct Outdoor Air Systems

By employing a ventilation strategy such as a DOAS, conditioned fresh air can be brought into the building, thus improving IAQ and ensuring a safer environment.




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Manufacturers Offer Advice on Reducing Noise From Air Handlers

Air handlers are the heart of an HVAC system, moving the conditioned air through a building. Like a heart, they can generate a lot of noise while operating. Manufacturers, however, are taking steps to reduce that noise.




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3 Things Are Keeping Gen Z from Joining the Trades

The report showed 61% of the Gen Z respondents said their parents haven’t spoken to them about vocational school — or told them not to consider it.




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How to Protect HVAC Vehicles From Extreme Weather

It goes without saying that HVAC work shifts with the seasons. But did you know that the same mentality can apply to your company vehicles?




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AAON Receives $174.5 Million in Orders from Data Center

Under these orders, AAON will provide a custom-designed thermal management system supporting a liquid cooling deployment for the customer's data centers.




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Lessons Learned From CO<sub>2</sub> Refrigeration Installations

In an informative session at the NASRC’s Sustainable Refrigeration Summit, Publix and Coborn’s shared the pros and cons of incorporating CO2 refrigeration systems into their stores.




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Demand for Evaporative Cooling Comes from Fast-Growing Markets

Evaporative cooling is growing in demand as cooling needs are expanding.




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Smart Thermostats Elevate A/C From Appliance to Tech Gadget

Thermostats are like other pieces of interactive equipment: People are thrilled by each development but move on quickly when the next feature comes along.




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The Go-to Thermostats From Contractors

Since HVAC contractors are usually the ones installing the systems, not to mention performing maintenance, when necessary, their opinions on comfort controls are not to be taken lightly




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Navigating the A2L Transition: Insights from the International Code Council

New A2L-related code requirements will impact HVAC system installation and include warning labels, ventilation, leak detection, and limits on refrigerant amounts for comfort air conditioning.




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Letters From Our Readers: December 2, 2019

I’ve heard a lot about power bills, even with new a/c units. New units show increased savings, but it’s nothing like the mini splits of today.




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Community Church Benefits From Unitary Variable Refrigerant Flow Retrofit

With over 1,000 Sunday service attendees and many church activities throughout the week, energy efficiency for the sake of cost savings was critical.




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Heat Pump Awareness Grows from Residential, Commercial Customers

Consumer awareness and opinion of heat pumps are both improving, along with the technology. Manufacturers see a strong market ahead, although some challenges remain.




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The Impact of Adding or Removing Water from Air

We often humidify and dehumidify as part of our work, but let’s take a different look at what happens when we do that.




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Smaller Buildings Can Benefit From Building Automation Systems

Small- to medium-sized buildings make up about 94% of all commercial buildings in the U.S., according to the U.S. Energy Information Administration, yet only 13% of those buildings have a building automation system.




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How to Explain Odor from Gas Furnace

Any furnace with induced draft combustion may occasionally exhibit unburned gas odor near the furnace in the off cycle.




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Episode 93: Lessons Learned From Architecture Reviews with Rebecca Wirfs-Brock

In this episode, Markus talks to Rebecca Wirfs-Brock on what she has learned from architecture reviews. This is a very complement to the earlier episode on architecture evaluation.




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Episode 192: Open Source Development: Perspectives From Management Science

Recording Venue: Swiss Federal Institute of Technology, Zürich Guest: Georg von Krogh Open source development has had a major impact on both private and public development and use of software. This is an interview with one of the key researchers on open source development, Professor Georg von Krogh of the Swiss Federal Institute of Technology in […]




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SE-Radio Episode 284: John Allspaw on System Failures: Preventing, Responding, and Learning From

John Allspaw CTO of Etsy speaks with Robert Blumen about systemic failures and outages. Why they cannot be totally prevented, how to respond, and what we can learn from them.




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SE-Radio Episode 319: Nicole Hubbard on Migrating from VMs to Kubernetes

Edaena Salinas talks with Nicole Hubbard at KubeCon 2017. They discuss why WP engine is migrating from VMs to Kubernetes and how the migration is structured. Nicole explained the VM infrastructure at WP Engine and why there was a need to move...




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Episode 438: Andy Powell on Lessons Learned from a Major Cyber Attack

Andy Powell is the CISO of AP Moller Maersk and discusses the 2017 cyber attack that hit the company and the lessons learned for preventing and recovering from future attacks.




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Episode 527: Adrian Kennard and Kevin Hones on Writing a Network OS from Scratch

Adrian Kennard and Kevin Hones, Founders of FireBrick routers and firewalls, discuss how to design, build, test and support a hardware router and network operating system from scratch, while sharing the lessons learned. You'll also learn that in certain..




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How to Defeat the Far-Right: Lessons From the French Left

Analyst Jean Bricmont offers a deep analysis of how France's left-leaning coalition swept a plurality of seats in the recent snap elections.











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How To Use Gmail Account To Relay Email From a Shell Prompt

handy reference




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QUIZ: How fast is Mbappé? Quicker than Nitro from Gladiators?

In a Champions League match between his team, Paris Saint Germain, and Real Sociedad, the French forward managed to run 100m in 10.9 seconds.




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Quiz: Can you spot the fake news stories from the US election?

Find out which viral news stories from the US election are real or fake with this quiz.




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What plans can we expect from Donald Trump as president?

Mr Trump will announce his wider plans for his government in due course, but here are some of the big issues he talked about during the election campaign.




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Your Planet: Environmental news from around the world

Nina brings us an animal themed Your Planet this week with stories from South Africa and the United States of America, as we look at what is being done to help endangered animals.




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South Asian smog cloud so big it can be seen from space

Children in some areas of Pakistan are facing school, park and zoo closures, amongst other restrictions, as smog continues to affect the area.