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Should You Clean the Ducts of a Home with Asbestos?

Trained to identify the varying types of asbestos used in old buildings, Matt Mountain of Mountain Duct Cleaning knows what he’s looking for.




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Don’t Overlook Cleaning the Evaporator Coil 

Cleaning evaporator coils in a walk-in cooler can be challenging, but it needs to be done in order to keep the system operating efficiently.  




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Are Geothermal Heat Pumps the Key to a Cleaner Planet?

Geothermal energy can be used to heat and cool commercial buildings. The highly efficient systems that make this possible are geothermal heat pumps.




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Manufacturers Help Contractors Keep up with Heat Pump Technology as Market Grows

Manufacturers and contractors are working to educate end users about the ways heat pumps work differently from traditional heat sources.




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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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Washington State Pushes for Heat Pumps

Heat pumps for both space and water heating will be required in most new homes in the state of Washington beginning next July.




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The 9 Types of Heat Pumps

As the U.S. moves toward electrification, heat pumps are becoming more popular, which will likely increase sales in the coming years. The key is to know which type of heat pump will work best for an application, as there is a wide range of equipment from which to choose.




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Energy Savings, New Technology, Incentives: The Market for Geothermal is Heating Up

Though geothermal systems can cost several times more than traditional HVAC units, the energy savings may be substantial.




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March 27, 2023 NEWSRoom: Heat Pumps Part of Musk’s Master Plan, AHRI Policy Leadership Award, Enter Top 30 Distributors of 2023

Catch up on the latest headlines in our NEWSRoom video series.




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Moisture Control for Heat Pumps

When it comes to moisture control, sizing the heat pump correctly is the most effective step an HVAC contractor can take.




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Concerns Around HVAC Heat Pump Installs

Contractors will be tasked with more installs of heat pumps, and their challenges, as customers learn more about their benefits.




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In Line for Federal Money for Heat Pumps, OEMs are Ready to get to Work

As the federal government plans millions in grant funding to boost heat-pump manufacturing in the U.S., a big player in the market as well as a newcomer are thrilled with the opportunity.




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Creating Thermal Energy Networks in Rochester, Minnesota

As Rochester city leaders set the ambitious goal of reducing greenhouse gas emissions by 50% by 2030 and 100% by 2050, the challenge is now how to follow through.




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How A Water-Source Heat Pump Works

To help the industry better promote geothermal heat pump technology, it first needs to have an understanding of exactly what is going on during its heating and cooling process.




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Breaking the Code: Controlling Humidity and Particulate to Meet Building Standards

While balanced ventilation does have energy benefits, there is a misconception about its ability to reduce humidity.




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Upper-Room UVGI: An Infectious Disease Control Strategy

The pandemic has marked a turning point for an underutilized technology for infectious disease control in buildings.




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Why Changing Refrigerants May Mean Your Existing Pump Needs Replacing

When changing the refrigerant within your pumping application, it is worth discussing the application with a process specialist.




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How to Measure Net Oil Pressure

Before servicing any refrigeration or air conditioning systems that contain an oil pump, technicians should make sure they understand the difference between net oil pressure and oil pump discharge pressure.




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H2VAC: Using Hydrogen Fuel to Decarbonize Heating and Cooling

Discover how hydrogen fuel is poised to revolutionize HVAC systems by reducing carbon emissions and easing strain on electric grids, driving the industry toward a decarbonized future.




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6 Essential Steps for Teaching CO₂ Refrigeration

CO2 refrigeration systems demand both classroom knowledge and hands-on experience, which is why blending theory with practice creates top-notch technicians.




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Xen Security Advisory 464 v2 (CVE-2024-45819) - libxl leaks data to PVH guests via ACPI tables

Posted by Xen . org security team on Nov 12

Xen Security Advisory CVE-2024-45819 / XSA-464
version 2

libxl leaks data to PVH guests via ACPI tables

UPDATES IN VERSION 2
====================

Public release.

ISSUE DESCRIPTION
=================

PVH guests have their ACPI tables constructed by the toolstack. The
construction involves building the tables in local memory, which are
then copied into guest memory. While actually used...




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Xen Security Advisory 463 v2 (CVE-2024-45818) - Deadlock in x86 HVM standard VGA handling

Posted by Xen . org security team on Nov 12

Xen Security Advisory CVE-2024-45818 / XSA-463
version 2

Deadlock in x86 HVM standard VGA handling

UPDATES IN VERSION 2
====================

Public release.

ISSUE DESCRIPTION
=================

The hypervisor contains code to accelerate VGA memory accesses for HVM
guests, when the (virtual) VGA is in "standard" mode. Locking involved
there has an unusual discipline, leaving...




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Re: Xen Security Advisory 464 v2 (CVE-2024-45819) - libxl leaks data to PVH guests via ACPI tables

Posted by Andrew Cooper on Nov 12

Data are leaked into the PVShim guest, but it is the shim Xen
(exclusively) which has access to the ACPI tables.

The guest which has been shim'd can't architecturally access the leaked
data.

~Andrew




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Re: Xen Security Advisory 464 v2 (CVE-2024-45819) - libxl leaks data to PVH guests via ACPI tables

Posted by Demi Marie Obenour on Nov 12

Is this unconditional (perhaps because the relevant data gets zeroed out
by the shim), or does it only apply when the PV guest can't extract data
from the shim's memory? For instance, 32-bit PV guests aren't security
supported anymore, but the PV shim isn't supposed to rely on the
security of the shim itself, only of the rest of the system.




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2019 Dealer Design Awards: Commercial Controls

Intuitive usability helped the CS7500 win a Gold award in The NEWS’ 2019 Dealer Design Awards in the realm of Commercial Controls.




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Johnson Controls acquires EasyIO Building and Energy Management System

Johnson Controls announced that it closed an agreement to purchase the EasyIO Building and Energy Management System (BEMS) product line.




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Aircuity is Approved Vendor for Real-Time Energy Management Program

Aircuity has been named a New York State Energy Research and Development Authority Qualified Vendor for the RTEM program.




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Portable Market Geared for Uptime

The benefits of portables, including speedy implementation, reduced downtime, and cost-effectiveness, are continuing to gain recognition from end users. And, as end users experience these benefits and the resulting uptime, industry experts expect the portable market to continue to heat up.




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Commercial Cooling Showcase 2016: Summer Heat No Match for HVAC Cooling Equipment

The manufacturers provided all of the data included in the product grid as well as the photo feature. Therefore, any questions should be directed to them via the contact information provided in the photo feature section.




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Preaching the Importance of Rooftop Maintenance

HVAC contractors in different climates and regions all over the U.S. agree that irregular upkeep is the most problematic issue when it comes to rooftop unit failure.




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Residential Heating Showcase 2016: New Products Help Homeowners Feel the Heat

This heating showcase provides in-depth information on the features of each individual unit and also includes technical support information from the manufacturer. The manufacturers provided all of the data included in the product grid as well as in the photo feature; therefore, any questions should be directed to them via the contact information provided in the photo feature section.




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Commercial Heating Showcase 2016: New HVAC Systems Help Keep the Commercial Market Warm

Each year, The NEWS spotlights the industry’s latest commercial heating products. The manufacturers provided us with a brief description of features included with each product.




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Coleman Heating and Air Conditioning: Packaged Units

The units feature an exact-fit replacement design that matches the units to footprints of other manufacturers’ units and eliminates the need for a curb adapter.




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Serviceability, Flexibility Earn Aaon’s WH Series DDA Gold

Aaon’s focus on serviceability and performance helped the WH Series earn gold in The NEWS’ 2017 Dealer Design Awards HVAC Light Commercial Equipment category.




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Fujitsu Technical Service Advisors Conference Creates a Unified Front

Fujitsu’s Technical Service Advisors event was held to strengthen manufacturer-distributor relationships and empower in-field technical support staff.




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Bluetooth Technology, Battery Strength Earn ManTooth the Gold

The ManTooth™ Wireless Digital Pressure/Temperature Gauge from Yellow Jacket Products Division, Ritchie Engineering Co., is this year's gold winner in the Electronic Tools category.




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New Sensor Technology Leads to Better Presence Detection

New thermopile sensors save energy and increase safety when applied within the construction and property sectors.




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2020 Dealer Design Awards: Testing & Monitoring Products

Badger Meter won Gold in the Testing and Monitoring category for its Dynasonics® TFX-5000 ultrasonic clamp-on meter, which measures volumetric flow and heating/cooling energy rates in clean liquids, as well as those with small amounts of suspended solids or aeration, such as surface water or raw sewage.




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HVAC Tools Are Becoming More Advanced, Leading to Profit Opportunities

Investing in the right tools will save your employees’ time and avoid delaying repairs in the rush of summer.




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Tools Roundup for HVACR Pros: Measure, Carry, Flare, and More

This brief year-end tool review rounds up a handful of items that might make the work a little easier in 2021.




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The Importance Of Female Leadership In The HVACR Industry

“It's simple. If you want to encourage women to prosper and develop, provide them with some prospering women to inspire them to develop.”




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Commercial Heating Showcase 2024

Commercial heating equipment manufacturers are rolling out new systems that are energy efficient, as well as service friendly for contractors.




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How To Clean the Ducts in a Home With Asbestos

Old homes and old HVAC systems bring the potential for asbestos — here’s what HVAC contractors and duct cleaning professionals need to know if they run into it on a jobsite.




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GreenChill Honors Top Refrigeration Leaders

GreenChill recognized nine supermarket and commercial refrigeration leaders for exceptional achievements to reduce the impacts of commercial refrigeration systems on the environment. 




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AI Can Be a Help and a Headache

If used correctly, AI can potentially enhance efficiency and accuracy across multiple industries, including HVACR.




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What Trump’s Election Means for HVAC Tax Credits and Incentives

With the election of Donald Trump to President of the United States, the HVAC industry is wondering how this will affect the Inflation Reduction Act incentives.




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Heat or Chill, the Market for Heat Exchangers in HVACs Stays Steady

With stronger global temperature fluctuations and demand for HVAC systems growing, heat exchangers are rapidly becoming essential to an ever-expanding market.




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The AHR Expo Finds Atlanta Is Just Peachy

The upcoming expo will preview the future of the HVACR industry, with exhibitors from around the globe gathering to showcase new and upgraded products, technologies, and innovations.




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Siemens Works Hard to Make Life Easier

Siemens is working to expand their offerings to fit any building size, with any amount of complexity.




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M.C. Dean Acquires International Energy Conservation Systems

IEC Systems is a provider of turnkey proprietary and nonproprietary building automation systems (BASs) and a Distech Controls authorized system integrator.