Central Air Conditioners and Air-Source Heat Pumps U.S. shipments of central air conditioners and air-source heat pumps totaled 925,031 units in March 2021, up 8.6 percent from 851,939 units shipped in March 2020. U.S. shipments of air conditioners increased 5.4 percent, to 576,646 units, up from 546,992 units shipped in March 2020. U.S. shipments of air-source heat pumps increased 14.2 percent, to 348,385 units, up from 304,947 units shipped in March 2020. Read More
News
Update on GFCI Nuisance Trips on Outdoor HVAC Equipment Related to 2020 NEC
Summary: Informal testing results from Trane shows GFCI outlets or disconnects severely effect variable capacity equipment (ECM / brushless rotor motors / inverter technology). Single speed and two speed equipment has proven to be less susceptible to nuisance trips. This is good news, but much more work needs to be done. At its April 14, 2021 web-meeting, the ACCA Codes Subcommittee heard an update from a Trane Technologies representative regarding their internal investigation of nuisance… Read More
Carbon Monoxide: You Can Help Improve Community Carbon Monoxide Awareness
Carbon monoxide (CO) incidents hit Texas families hard during the winter storms this past February. There are heartbreaking stories of families using unsafe heating methods to stay warm. The aftermath includes 11 deaths, 1400 emergency room visits, and other unknown long-term issues. David Richardson, NCI Trainer Most people are unaware of CO poisoning. They don’t know what causes it, the sources, or what to look for in their home. They don’t think it will happen… Read More
Prepare for Profit
At Mingledorff’s, we know HVAC contractors want to be successful and respected business owners. In order to do that, they need to make payroll each week, pay their suppliers on time each month and still have profit left over for all their hard work. David Kesterton Although the economy is good and our industry is poised to have another record year, not all trends are good. A massive strain in the supply chain has infiltrated… Read More
Nortek Global HVAC Redesigns Entire Product Line of Reznor® Branded Unit Heaters
Nortek Global HVAC (NGH), manufacturer of the industry’s leading unit heaters, has redesigned its entire Reznor® brand of commercial/industrial/residential gas-fired unit heaters for the North American market. Updates include aesthetics, integrated air direction accessories and technological advancements that help contractors with installation, diagnostics and service to provide end-users’ with optimum building protection, comfort and reliability. The redesign applies to Reznor’s UEZ, UDZ, UBZ, UDX and UBX Series, which encompass unit heater models up to 400-MBH… Read More
Inverter Driven/Hybrid
The effect of the inverter-driven mini-split ductless system has been profound; since the arrival to America’s shores decades ago, the mini-split inverter system has seen double-digit growth in all sectors. Not only though, have the sales reflected the ease of installation and low capital cost afforded by these ductless (and now ducted) systems, but indeed the homeowner, well-researched on the internet, has discovered that inverter systems are quiet and energy efficient. Good things for the… Read More
