Greenheck News

Sound is a critical consideration in the selection and application of fans. Despite this, fan sound remains one of the least understood topics in the air handling industry. This series of articles provides a better understanding and point of reference on how fan sound is developed, rated, applied, and controlled. Understanding the Development of Fan Sound Data and the Product Rating Process (FA/120-23) Products that are independently third-party tested and performance certified assure the...

The National Education Association cites that nearly 57.5 million students and school employees enter the doors of the nation’s schools every day. According to estimates from the U.S. Environmental Protection Agency, half of these adults and children spend their school days breathing air polluted with toxic chemicals, mold, viruses, bacteria, asbestos, pesticides, smog and particulates from vehicle pollution, and more. While the threat of severe illness from viruses such as COVID may have...

A recently released White House Fact Sheet, Back to School 2022: Giving Every School the Tools to Prevent COVID-19 Spread and Stay Safely Open All Year Long, cites improving indoor air quality across America’s school buildings through effective ventilation and filtration as an important part of COVID-19 prevention. Proper ventilation and indoor air quality In addition to other layered prevention strategies, taking action to improve indoor air quality can also reduce the risk of expos...

Greenheck, the pioneer in engineering and manufacturing air movement, control, conditioning, and distribution equipment, is celebrating its 75th anniversary. Founded by brothers - Bob and Bernie Greenheck upon returning home from World War II, the company started as a small sheet metal shop in Schofield, Wisconsin, USA. Niche in HVAC In its early days, Greenheck manufactured various metal products but soon found its niche in its first HVAC product, a powerless gravity ventilator. Currently, G...

Greenheck, the pioneer in air movement and provider of the most comprehensive selection of products for commercial HVAC systems, announced the incorporation of patented Northern Light® UV-C technology into its line of AMPLIFY™ overhead HVLS fans today.  “We’re excited to add this technology to our AMPLIFY overhead fans,” said Tim Busby, Greenheck General Manager, Fans, adding “This applied innovation will truly make a difference in indoor spaces....

Greenheck Group, a pioneer in the manufacturing and distribution of air movement, air control, and air tempering equipment, has completed the acquisition of Metal Industries. The addition of Metal Industries expands the Greenheck brand’s portfolio of products adding grilles, registers, diffusers (GRDs), and air terminal units (ATUs) to its comprehensive product offering. The coming together of these two great brands further positions Greenheck as a trusted single-source supplier for compl...

Greenheck Group, a family-owned company, and pioneer in air movement, air control, and air tempering products, announces exciting leadership moves that position the company to accelerate long-term growth and create more value for customers and team members. As Greenheck Group approaches its 75th anniversary in 2022, the company will exceed $1 billion in annual revenue. To meet accelerating growth and growing customer needs, Greenheck Group is making unprecedented reinvestments in product innova...

The Hand/Off/Auto (HOA) control is the latest addition to Greenheck’s line of Vari-Green® controls that optimize ventilation system efficiency. The compact HOA control can replace a Vari-Green transformer and provide a 24V power source from the existing line voltage at the fan. The fan can be enabled by using a dry contact closure or by providing a voltage (12-120V) allowing the control to easily integrate the fan into a variety of systems. user-friendly and functional The control c...

Greenheck’s HBT-221 rectangular bubble-tight damper is available in larger sizes up to 48 in. x 52 in. in a single section. This allows larger openings to be filled with one pre-engineered damper to provide zero leakage rather than a multi-section assembly that can add a significant amount of pressure to the system. In addition, larger-size HBT-221 dampers can be configured with a single actuator versus two actuators found in a multi-section damper assembly. mechanically fastened blade...

Greenheck Group, the globally renowned manufacturer of air movement, control, and conditioning equipment, with manufacturing locations across the United States of America (USA), was named as one of Forbes’ America’s Best Midsized Employers on Tuesday, February 9, 2021. Employers are chosen based on results from an independent survey that is distributed to more than 50,000 U.S. based employees, who are working for companies that employ more than 1,000 individuals. America’s Be...

Greenheck has introduced two new heavy-duty industrial control dampers for high temperature applications. Models HCD-324 and HCD-524 feature a high temperature blade design to control airflow and provide shutoff in industrial process systems. Model HCD-324 has a pressure rating up to 25 in. wg and velocity rating up to 5000 fpm. Model HCD-524HCD-324_Open has a pressure rating up to 45 in. wg and velocity rating up to 5000 fpm. Both models have a temperature rating of -40 degrees F to 1000 degre...

Greenheck’s latest electric duct heater, model IDHE-O with a NEMA 4 enclosure, is UL listed for outdoor applications. The IDHE-O allows for multiple mounting positions where the control cabinet can be installed on either side of a horizontal duct or in any orientation on a vertical duct. The control cabinet is offset from the heating element like traditional duct heaters. However, the installer can position the offset to the left or to the right making installation easy. Control terminal...

Greenheck, a globally renowned company in manufacturing and distributing air movement, conditioning and control equipment, has announced that its line of high-volume low-speed (HVLS) fans continues to grow with the addition of model DC-5, a five-blade HVLS fan incorporating a sleek, lightweight design. DC-5 fans DC-5 fans weigh less than 100 pounds and feature a plug-and-play wiring design for quick and easy installation DC-5 fans weigh less than 100 pounds and feature a plug-and-play wiring...

Model ABD-Z1 is the latest addition to Greenheck’s line of automatic balancing dampers that provide on-demand control to ventilation systems. Model ABD-Z1 combines a shut-off damper with an electric actuator, automatic balancing damper (ABD) and a plenum box into one assembly. Ventilating targeted spaces The addition of a low leakage volume control damper to an automatic balancing damper allows the ABD-Z1 to shut-off unoccupied zones. By only ventilating targeted spaces, the central fan&...

Model ECV-40 is an addition to Greenheck’s energy core ventilator (ECV) line. The ECV-40’s new design features a dual-fan arrangement consisting of direct drive mixed-flow plenum fans with variable frequency drives (VFDs) replacing the forward-curved fan typically found in energy core ventilators. The mixed flow fan, a hybrid between an axial propeller and a centrifugal fan, reduces brake horsepower requirements by up to 50%. The VFDs facilitate ease of balancing at start-up. Sound...

Greenheck, a globally renowned company in manufacturing and distributing air movement, conditioning and control equipment, has announced the new model GJI, as the latest addition to its GreenJet series of fans, which have been specifically designed to ventilate enclosed parking structures. GJI ductless jet fan Featuring a low profile of less than 12 inches, the GJI ductless jet fan maximizes vehicle clearance space to allow for shorter floor-to-floor heights in the garage. The GJI’s aero...

An air-source heat pump option is now available on Greenheck model RV and RVE dedicated outdoor air systems. Air-source heat pumps are refrigeration systems that provide both cooling and heating; a reversing valve changes the direction of the refrigerant flow, switching the system from cooling mode to heating mode. This heating and cooling option, available on select RV and RVE models offering 5 to 30 tons of cooling, provides high efficiency in combination with inverter compressors and modulat...

Greenheck’s Vektor-H® high plume laboratory exhaust systems in single and two fan configurations can now be specified with a factory-preprogrammed controls package. The independent control system maintains duct static pressure by modulating fan speed, bypass damper position, and isolation dampers as selected in Greenheck’s Computer Aided Product Selection program (CAPS®). The control system includes variable frequency drives (VFDs), a duct sensor, and a separate factory-prog...

As multiple state and government agencies have limited travel and ordered people to shelter in their place of residence, essential businesses like Greenheck Group are addressing new challenges resulting from the COVID-19 pandemic. Greenheck Group, a pioneer in the engineering and manufacture of HVAC equipment and headquartered in Schofield, Wisconsin, continues to support ongoing building construction around the world, especially in needed industries such as healthcare and digital infrastructur...

Retrofit magazine recently recognized Greenheck model DS high volume low speed (HVLS) fan as one of the publication’s Top 50 Products of 2019. The recognition is the result of the publication asking its readers to identify the most interesting products from their magazine over the past year.  The HVLS fan offers eight sizes ranging from 8 to 24 feet in diameter, and has an optimized design for maximum efficiency and coverage. Model DS is currently the only HVLS fan licensed to bear t...

Greenheck’s EM-30 backdraft damper series is AMCA Licensed for Air Leakage and Air Performance. Designed to open by air pressure differential and close by gravity, backdraft dampers can be used as exhaust or intake dampers. The EM-30 is a vertical-mount horizontal airflow backdraft damper for pressures up to 10 in. wg and velocities up to 3500 fpm. Greenheck EM-30 series backdraft dampers comply with the energy code requirements in ASHRAE Standard 90.1 and the International Energy Conserv...

Greenheck Group, one of the world’s renowned manufacturers of air movement, control and conditioning equipment with corporate headquarters and several manufacturing facilities in Schofield, Wisconsin, was selected as the 2019 Wisconsin Manufacturer of the Year in by an independent panel of judges sponsored by Wisconsin Manufacturers & Commerce (WMC), Michael Best, and Baker Tilly. This is the fourth time the company has received the Wisconsin Manufacturer of the Year award in the Mega...

Greenheck model DS high volume low speed (HVLS) fan received the Product Innovation Award from Architectural Products magazine. Fourteen independent industry professionals reviewed thousands of products from a range that spanned HVAC and energy to interior finishes. The award was particularly gratifying as the independent panel based its decision solely on the merits of the product. The HVLS fan offers eight sizes ranging from 8 to 24 feet in diameter and has an optimized design for maximum eff...

Greenheck has added two new products to its automatic balancing damper (ABD) line. Model ABD-FD incorporates a UL 555 rated 1-1/2 or 3 hour static fire damper, flanged sleeve, an ABD and an optional factory-supplied grille. The entire ABD-FD assembly is UL rated and approved and can be used in both supply and exhaust applications. Ceiling radiation damper CRD-1WT, UL classified for wood truss floor/ceiling assemblies, now has ABD-FD the option to add an ABD mounted in the plenum box. auto...

The latest advance in Greenheck’s line of SP commercial ceiling exhaust fans is the Modular SP-AP exhaust fan that offers exceptional design versatility and energy efficiency. Modular SP-AP ceiling exhaust fan The SP-AP’s constant CFM EC motor technology ensures performance set points resulting in improved indoor air quality, when application static pressure is higher than expected. The SP-AP is two speed capable (constantly on low speed) with built-in time delay. Three built-in h...

Greenheck model DS high volume low speed (HVLS) fan received the gold level recognition as a Consulting Specifying Engineer (CSE) 2019 Product of the Year. The award, voted on by the publication’s readers, was selected as the top product of the year in the Air Movement & Humidification category. Model DS was highlighted in the September awards issue of Consulting Specifying Engineer. The HVLS fan offers eight sizes ranging from 8 to 24 feet in diameter and has an optimized design for...

Energy Core Ventilators (ECV) from Greenheck transfer both sensible (heat) and latent (moisture) energy between the exhaust and supply airstreams without the airstreams mixing. The energy recovery core separates the supply and exhaust air, ensuring only fresh air is introduced into the indoor space while providing superior heat transfer and moisture permeability. Model ECV-PM, the addition to Greenheck’s ECV line, features an AHRI 1060-certified polymer membrane energy-recovery core manuf...

Greenheck’s new EHV-550 and EHV-550D are 5.5-inch deep stationary dual-module wind-driven rain louvers featuring horizontal front blades and vertical rear blades. The innovative horizontal front blades provide a more traditional appearance and prohibit sight of the vertical rear blades from any upward viewing angle. The vertical rear blades yield high ventilation rates while providing unsurpassed weather protection. The EHV-550 and EHV-550D louvers are licensed to bear the AMCA Seal for W...

Greenheck, a globally renowned company in manufacturing and distributing air movement, conditioning and control equipment, has announced that now they offer an option for its ceiling exhaust fan and ceiling radiation damper to be combined at the factory into one unit shipped ready to install. Model CRD-310WT ceiling radiation damper Model CRD-310WT, a UL Classified ceiling radiation damper for wood truss applications, can be factory-mounted to one of six Greenheck ultra-quiet SP-A fan models (...

Air Movement and Control Association (AMCA) International Inc. will launch the Air System Engineering and Technology (ASET) series of free webinars on topics impacting air systems in buildings July 31 from noon to 1 p.m. CDT with ‘Fan Energy Index (FEI)—Changing Our Industry.’ FEI is a new fan-efficiency metric headed for building energy codes and standards, including the 2019 version of ANSI/ASHRAE/IES 90.1, Energy Standard for Buildings Except Low-Rise Residential Buildings....