Delightful Dahlias by Brian Davis is a(n) Limited Edition. The Edition is Limited to Limited Edition of 295 pcs

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The electric field around a narrow conical point can be very high, and such a behavior is the reason for the effectiveness of lightning rods. We use Maple's LegendreP function to visualize the electric potential near a lightning rod.

Some defense technologists believe that the U.S. Air Force’s manned Next Generation Air Dominance (NGAD) sixth generation fighter, in order to survive a service-ordered review, will have to be smaller […]

Flight testing of an autonomous KC-135 Stratotanker may begin next year. Boston’s Merlin Labs, Inc. and the U.S. Air Force’s 6th Air Refueling Wing at MacDill AFB, Fla., have been testing […]

Ellis & Watts Global Industries just launched a new website designed to highlight its global capabilities in five key practice areas and six sectors. 

Efficiency and sustainability have become the center of attention for almost every industry today, including the water heating space.

The monthly "Workiz Uplugged" podcast offers insights into how technology, leadership, and innovation are shaping the future of the field-service industry, a press release from Workiz said.

Bob Helbing, president of Air-Tro Inc., announced that his air conditioning and heating company won the San Gabriel Valley Readers Choice Award for the fifth year in a row. Air-Tro was voted the best heating and cooling company in the region.

A&B Properties Inc. (ABP), a wholly owned subsidiary of Alexander & Baldwin Inc., has partnered with Carbon Lighthouse, an energy services company, to implement a two-month pilot to identify energy efficiency initiatives for its commercial assets in Hawaii.

The heating and cooling company specializes in commercial and industrial HVAC projects in Oregon and southwest Washington.

The air duct calculator, or “ductulator,” is a commonly used tool for designing and installing duct systems. Unfortunately, many designers and technicians receive limited instructions on its correct use.

It’s easy to forget that what is a regular day on the job for you is a significant event in the life of your customer.

Whether indoor air is clean or laden with pathogens isn’t usually something you can see with the naked eye. Except at Greenheck’s AHR Expo booth, where visitors were treated to the full VR experience.

Record heat waves are driving up energy costs, but what can the HVAC industry do to mitigate some of those expenses?

With Zonefirst's Internet of Zoning (IoZ) technology, the Bliss system enables homeowners to manage both lighting and temperature settings through an app.

Utilizing the company’s Internet of Zoning (IoZ) technology, the Bliss Zoning System, a new home climate control system, enables homeowners to easily manage both lighting and temperature settings through a single, user-friendly app, allowing for customized comfort in every zone. 

Energy Star-certified buildings use an average of 35% less energy and are responsible for 35% less carbon dioxide emissions than typical buildings.

With the ongoing HFC phasedown, strong refrigerant management strategies are crucial to ensuring compliance, environmental responsibility, and business growth.

New report finds that GHGs can be reduced significantly through the use of reclaimed refrigerant versus producing and using newly manufactured virgin refrigerant. 

At its press conference at the AHR Expo, LG Electronics Component Solutions highlighted its new compressors for residential applications that will utilize the low-GWP refrigerants.

The most successful trainers are those who realize just how to connect with Gen Z.

Regal Beloit Corp. has become an expert in FER compliance by redesigning its products to meet the new standards, including the Genteq^® Ensite^® motor, DEC Star^® blower assemblies, and a new electronically commutated motor (ECM) to provide FER compliance for entry-level fans. These products were on display at the 2019 AHR Expo.

Johnson Controls Inc. had a big 2018, with the launch of several new products and the acquisition of Lux Products Corp. For Johnson Controls, the Lux acquisition enhances its commitment to thermostats. The move also enables faster product development cycles, improves customer service capabilities, and supports greater product innovation.

In Greek mythology, Argus was a son of Zeus. Having the king of the gods up on Mount Olympus for a dad probably raised the bar in terms of expectations. Fortunately, Tecumseh seemed comfortable with that kind of lofty namesake for its biggest launch at this year’s AHR Expo, the ARGUS condensing unit platform.

Troubleshooting the high side of a refrigeration system will often give service technicians valuable information. That’s because what happens in the condenser is a direct reflection of what is happening in the rest of the refrigeration system.

Selecting the correct air-cooled condenser for an installation is a vital part of ensuring the system operates properly and at peak efficiency.

Founding engineer and head of growth at Rilla, Will Gao, compares the value of data analysis for winning in sports to sales.

 “Technology’s not going to solve everything, but you need to know how to use it,” Nelson Valderrama, CEO of Intuilize, told HVACR distribution professionals during the recent Heating, Air-conditioning & Refrigeration Distributors International conference.

This service reduces fleet downtime due to roadside emergencies or inconveniences like dead batteries, empty fuel tanks, flat tires, etc.

Azuga studied 3.6 million driver behavior datasets from its GPS fleet tracking devices over the first five months of 2019.

GPS Insight, a provider of fleet software for organizations, announced the acquisition of ServiceBridge.

At the AHR Expo, RectorSeal LLC highlighted several new products designed to combat leaks and corrosion, both on the inside of the unit and from salty sea breezes on the coast.

Electronic leak detection is a very common sources of misdiagnosis. Here are tips to make your leak detection more successful.

When homeowners purchase a Nest product, Google will connect the customers to a qualified installer, a “Nest Pro.”

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.

Honeywell announced the launch of Honeywell Forge Energy Optimization, a cloud-based, closed-loop, machine learning solution.

A series of geothermal heat pumps from Enertech Global swept the HVAC Light Commercial Equipment category of the 2015 Dealer Design Awards, starting with the gold award winner, the TVS/TVT TETCO Commercial Series Geothermal Heat Pump.

Nortek Global HVAC has introduced a new three-phase electric/electric packaged cooling solution. The company said the Model P8SE delivers 14 SEER cooling in capacity ranges from 3 to 5 tons in even tonnages, making it an energy-efficient choice for strip malls, restaurants, and retail stores.

The recent Women in HVACR conference offered sessions aimed at advancing attendees' knowledge on industry topics such as the refrigerant transition, as well as building their leadership skills.

The ESP-400 by Jackson Systems LLC has earned gold in the Residential Controls category of The NEWS’ 2017 Dealer Design Awards.

Over a year of research and design went into the 2018 Dealer Design Awards gold-winning product in the Residential Controls category. After listening to feedback from both contractors and consumers for a more basic, easy-to-use, and cost-effective thermostat, Nest created the Nest Thermostat E.

For years, ZoneFirst President Dick Foster has used the light-switches-in-the-home comparison while promoting the benefits of zoning. At their AHR Expo booth, they introduced a product that brought new meaning to that comparison.

Posted by Ciro Santilli OurBigBook via dev on Sep 17

Posted by CISA on Mar 21

Dwight Merriman talks with Robert about the emerging NoSQL movement, the three types of non-relational data stores, Brewer's CAP theorem, the weaker consistency guarantees that can be made in a distributed database, document-oriented data stores, the data storage needs of modern web applications, and the open source MongoDB.