Search Results

Number of Results: 135

Content (135)
1 2 3 Next Page 1 of 3
Results per page:

  • Greenheck Expands SQ Mixed Flow Inline Fan Line

    New smaller sizes, side discharge and insulation options now availableGreenheck’s line of SQ direct drive mixed flow inline fans offering a unique combination of high efficiency, low sound, and ease of installation in a square housing design continues to expand and add enhancements. With the additio

  • Greenheck SQ Mixed Flow Square Inline Fan Recognized in Consulting-Specifying Engineer 2021 Product of the Year Awards

    Greenheck’s SQ mixed flow square inline fan received bronze level recognition as a Consulting-Specifying Engineer (CSE) 2021 Product of the Year. The award, voted on by the publication’s readers, was selected as one of the best new products of 2021 in the HVAC category. Model SQ will be highlighted

  • Meeting Energy Code Requirements with Fan Energy Index (FEI) Ratings

    State Energy Code Requirements The deadline for states to comply with U.S. Department of Energy (DOE) commercial building energy code stipulations was July 28, 2023. To satisfy DOE regulations, states must certify that their energy codes deliver energy savings at least equivalent to ANSI/ASHRAE Stan

  • How to Select the Proper Explosion-Proof Motor for Your Fan Application

    A variety of exhaust fans with spark-resistant designs that are suitable for contaminated and flammable environments are available in the marketplace. Many of these environments can use totally enclosed (TE) motors since the motors are not in the contaminated airstream and pose no threat to ignite a

  • Evaluating Finish Coat Processes for Grilles, Registers, and Diffusers

    Grilles, registers, and diffusers (GRD) are an afterthought for most people until something like rust ruins the aesthetics of a space. GRD products corrode due to a variety of reasons. The primary reason is humidity and dust particles finding untreated metal on the product instead of being encapsula

  • Understanding FEI; the new Fan Energy Index

    As the saying goes “The only thing that is constant is change.” As we all know, change isn’t always good. However in this case, changing to the new Fan Energy Index (FEI), replacing the much criticized and flawed FEG (Fan Efficiency Grade) metric, is great! FEI replaces existing fan energy metrics i

  • How to Adjust Floor-Mounted Isolators for Noise and Vibration-free Operation

    Your HVAC equipment is making unusual sounds and vibrating. Time to call maintenance, right? Well, yes, but maybe not for the reason you thought. It could be nothing more than a simple adjustment of fan isolators. Installing fan isolators on your HVAC equipment reduces the transmission of vibration

  • What goes into motor sizing?

    Motor sizing is more than a simple selection. Part one of this discussion explained fundamentals about horsepower (HP), torque and the fan laws. That information will aid in selecting a fan and determine the motor size. Fan Selection The fan criteria used for this post was for a direct drive fan wit

  • Greenheck Expands BAER Belt Drive Sidewall Propeller Fan Line

    Greenheck has expanded its BAER belt drive sidewall propeller fan line to include supply airflow configurations and expanded sizes. Model BAER is now available in supply and exhaust configurations with propeller diameters from 24 to 48 inches and performance capabilities from 300 to 54,000 cfm or up

  • Greenheck Introduces High-Performance Ventilation Package For Healthier Indoor Air In Multifamily Buildings

    Greenheck, the global leader in air movement and provider of the most comprehensive selection of products for commercial HVAC systems, is expanding its product offering in multifamily construction. Greenheck’s new package of specification-grade exhaust ventilation fans and energy recovery ventilator

  • What you need to know about ASHRAE 90.1-2022, FEG, and FEI - Part I

    ASHRAE 90.1 revisions over time have reduced HVAC energy consumption in nonresidential buildings by 50% since the standard's introduction in 1975. Like software updates that incorporate improvements and bug fixes, so it is with standards and code revisions. Hence this is the reason to update your pr

  • Redundant Lab Exhaust Systems: Are You Selecting the Best Option for Safety?

    Safety. Reliability. Ensure proper design and installation of systems to keep a laboratory open and operational. Laboratories must meet these requirements. However, labs have stringent ventilation needs when compared with other applications. Many labs work on critical research with potential for inf

  • Big Ceiling Fans: A Guide to HVLS

    HVLS or overhead ceiling fans are an extremely efficient way of moving large quantities of air around large spaces, like warehouses, auditoriums, and even a hotel atriums. They can be big enough to produce a slight breeze, keeping sizable open spaces relatively cool by increasing the rate of evapora

  • Podcast: Understanding Fan Energy Index (FEI)

    Consulting Specifying Engineer: Understanding Fan Energy Index (FEI)In this Consulting Specifying Engineer podcast, Greenheck Principal Application Engineer, Tyler Mancl P.E., discusses how FEI is a true energy efficiency metric and explains how an understanding of FEI can help engineers with code c

  • What you need to know about ASHRAE 90.1-2022, FEG, and FEI - Part II

    In our previous blog post, we explained the inconsistencies that were in the Fan Efficiency Grade metric (FEG) which was included in ASHRAE Standard 90.1-2019 and other energy standards. Because of these inconsistencies, the FEG metric could not accurately define the most energy-efficient fan for an

  • New KSQ Mixed Flow Untempered Roof Supply Fan From Greenheck

    Greenheck’s new KSQ mixed flow roof supply fan provides energy-efficient building supply or untempered make-up air in applications where heating and cooling are not required. Model KSQ is available in direct drive sizes 7 through 33 with performance up to 16,750 cfm and 2.75 in. wg in multiple confi

  • How to Select and Apply Balancing Dampers

    It is more important than ever for a building’s HVAC system to be adjusted and balanced correctly to achieve the required indoor air quality at the lowest possible operating costs. Pressure imbalances within an HVAC system can make it more difficult to maintain a given condition within a room (i.e.,

  • Greenheck MultiSPEC™ Exhaust Fans Deliver Industry-Leading Performance

    Greenheck’s new MultiSPEC™ SP-LP ceiling exhaust fans provide high efficiency, powerful performance, and quiet operation in a low profile design. Powered by an electronically commutated motor (ECM) with constant CFM adaptive, variable speed, the MultiSPEC SP-LP is programmed to overcome static press

  • How to Improve HVAC Systems by Making a Fraction of an Inch Change

    The impact HVAC grilles and registers have in a total ventilation system may seem small compared to the system overall. However, a fraction of an inch in the spacing of the grille or register blades makes a big difference. Most supply and return grilles use 3/4" blade spacing, but evidence suggests

  • Certifications, Regulations, and Codes—What are they and why should I care?

    Why do some HVAC products have several certifications depending on the application? Why do HVAC projects have some regulatory or code requirements that vary by equipment type and building, and are even specific to each system in a building? Shouldn’t similar products from competing manufacturers hav

  • Ventilation Fundamentals for Indoor Air Safety

    The National Education Association cites that nearly 57.5 million students and school employees enter the doors of our 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 wi

  • EC Motor Fundamentals: What is an EC Motor and the Benefits it Offers

    The demand for highly efficient and reliable HVAC equipment continues to grow. Rising energy costs and pressure to minimize downtime have caused the HVAC industry to find better motor solutions to power fans. The electronically commutated (EC) motor is one solution, offering improved reliability and

  • Louver Fundamentals: A Breakdown of AMCA Louver Certifications

    The Air Movement and Control Association International or AMCA develops industry-related test standards for air movement and control products while independently certifying product performance to ensure reliable and accurate product performance. AMCA has several standards that pertain to louvers. AN

  • Effective Strategies for Healthier Indoor Air

    The importance of indoor air quality (IAQ) has continued to grow as we focus on improving societal health. Of course, the COVID pandemic has reinforced the need for well-designed ventilation systems that provide improved IAQ. If you are focused on improvement, particularly by reducing the efficacy o

  • Fire Dampers 101 – Types, Testing, and Ratings

    Fire dampers play a very important role in protecting buildings and saving lives in the event of a fire. Building codes require fire dampers to maintain the fire-resistance ratings of walls, partitions, and floors when penetrated by air ducts and transfer openings. (Figure 1) Upon detection of eleva

  • Greenheck's QEI Mixed Flow Fan Offers New Construction Options For Corrosive Or Flammable Environments

    Greenheck’s QEI mixed flow fans are now available with aluminum and spark resistance Type A material construction options. The expanded construction material offering combined with the QEI’s high efficiency mixed flow wheel makes it a great solution for challenging exhaust air applications. The alum

  • Understanding the Differences Between Backdraft and Relief Dampers – Application and Selection

    A successful HVAC system installation requires the correct components. Selecting most components is pretty simple. However, some can create problems. Backdraft and relief dampers, because of subtle differences and uses, can fall into that category. (Figure 1) Figure 1 Backdraft dampers, also known a

  • Product of the Year Voting Underway

    The KSQ Mixed Flow Roof Supply Fan is a nominee for the Consulting-Specifying Engineer (CSE) Product of the Year awards in the HVAC category—and we need your vote to win! Only qualified Consulting-Specifying Engineer subscribers are eligible to vote. Only one vote per qualified subscriber. If more t

  • Greenheck Introduces Modular Air Distribution Systems for Operating and Imaging Rooms

    Greenheck’s new modular air distribution systems accommodate the specialized medical, mechanical, and electrical considerations of operating and imaging rooms. Incorporating laminar diffuser arrays that simplify coordination during design and installation, these modular systems maximize diffuser cov

  • New XG-AFL Series Linear Diffusers from Greenheck

    Greenheck's XG-AFL Series of architectural high-capacity linear slot diffusers are designed for ceiling and sidewall installation in variable volume or constant volume air distribution systems. Available in single-section lengths up to 96 inches with one or two slots, versatile XG-AFL Series diffuse

  • Greenheck Expands Tubular Inline Fan Line

    Greenheck has expanded its tubular inline fan product offering with the addition of the AX 200 Series tubular inline and upblast fans. Featuring medium-duty welded construction, a cast aluminum prop, and integral flanges for airtight duct connections, the direct drive AX 200 can be utilized in a wid

  • Overhead Fan with Northern Light® Wins 2022 Commercial Comfort Product of the Year Award

    Greenheck’s Overhead Fan with Northern Light® Technology earned the Engineered Systems’ 2022 Commercial Comfort Product of the Year award in the IAQ & Ventilation category. Established to honor excellence in HVACR product design, the contest is conducted annually by Engineered Systems magazine which

  • Greenheck’s eCAPS® Bridge To Revit® Adds More Content And Functionality

    Greenheck’s eCAPS® Bridge to Revit® plug-in allows users to seamlessly select and schedule Greenheck HVAC equipment without leaving the Revit® environment. The latest eCAPS Bridge release includes access to additional Revit® content and more functionality. Dedicated outdoor air systems (DOAS) LOD 30

  • Greenheck Adds Model DM-3 To Overhead Fan Line

    The model DM-3 is a small-diameter architectural overhead fan that boosts occupant comfort while enhancing the interior design of commercial and institutional building spaces. Featuring curved polymer airfoils designed to maximize airflow, improve efficiency, and optimize coverage area, the DM-3 is

  • Greenheck Introduces XG-TH-500 Series Air Terminal Units

    Greenheck’s XG-TH-500 Series Air Terminal Units (ATU) are zone-level air distribution devices that regulate airflow for maximum occupant comfort in variable or constant volume applications. The single-duct XG-TH-500 features a galvanized steel casing mechanically sealed for low leakage construction

  • New BTDR-50 Bowtie Damper From Greenheck

    Greenheck introduces model BTDR-50, a cable-operated radial blade balancing damper, also known as a bowtie damper, that is designed for easy airflow adjustment at an air outlet or plenum neck. The BTDR-50 is available in steel in 6, 8, 10, 12, and 15-inch diameters, with pressure capacity up to 1 in

  • Greenheck Redesigns USF Centrifugal Utility Sets

    Greenheck has redesigned model USF single-width centrifugal utility sets in sizes 4 to 24 to incorporate more features and options. The USF now offers expanded direct drive selections with Vari-Green® motors up to 10 hp. Factory- mounted or ship-loose controls with VFDs are now available with belt o

  • New Fan Filter Diffusers from Greenheck

    Fan filter diffusers have been added to Greenheck’s growing line of healthcare, laboratory, and cleanroom (HLC) air distribution products. Fan filter diffusers are unidirectional diffusers with integrated EC motors and high-efficiency filters that provide ultra-clean air necessary in critical applic

  • New Modular Open Array From Greenheck

    Greenheck’s new Modular Open Array, model MOA, provides a turnkey retrofit package that delivers certified performance, communication, and controllability. The MOA configurable fan array features lightweight, easy-to-assemble components that ship to the job site knocked down for field installation.

  • Greenheck Introduces Directional Destratification Fan

    Greenheck’s extensive product line continues to grow with the addition of model DDF, a directional destratification fan that improves comfort and reduces energy costs by efficiently mixing air from floor to ceiling for uniform temperature distribution. The high-performance direct drive model DDF is

  • Greenheck Introduces BAER Belt Drive Sidewall Propeller Fan

    Greenheck’s new model BAER belt drive sidewall propeller fan is designed for expanded performance and improved efficiency in wall-mounted clean air applications. The BAER features cast aluminum airfoil blades and hubs, an AC induction motor, and an automatic belt-tensioning system that minimizes reg

  • Greenheck Introduces Healthcare, Laboratory and Cleanroom Air Distribution Products

    Greenheck’s new line of healthcare, laboratory, and cleanroom (HLC) air distribution products are designed, engineered, and tested to meet or exceed today’s critical environment standards for performance and energy efficiency. This product line includes Laminar Flow Diffusers, Radial Flow Diffusers,

  • Greenheck Offers AER Configurable Condenser Fan

    Regulates temperature and provides ventilation for equipment in demanding applications Greenheck’s new AER direct drive configurable condenser fan can help regulate temperature and provide proper ventilation for your equipment, even in the most demanding applications where elevated water and tempera

  • Greenheck Launches Air Distribution Product Line

    New Product Line Allows for Single-Source HVAC System SpecificationGreenheck recently added air distribution products to its industry-leading product line making it even easier to specify a complete ventilation system from one supplier. Greenheck’s air distribution products include an extensive sele

  • Greenheck’s eCAPS® Bridge To Revit® Streamlines Product Selection

    Software Plug-In Saves Time in Creating Schedules Greenheck’s eCAPS® Bridge to Revit® plug-in provides access to the most complete catalog of HVAC product content in Greenheck’s eCAPS® online product selection program and makes it easy to select and schedule HVAC equipment without leaving the Revit®

  • Greenheck Vektor®-H Lab Exhaust Fan Receives High Wind Certification

    Vektor-H Direct Drive Reduces Power and Maintenance Greenheck’s Vektor®-H direct drive laboratory exhaust fan has received Miami Dade NOA and Florida Product Approval for high wind certification. All Vektor-H series models are now hurricane and high wind certified for wind-borne debris, impact resis

  • Greenheck Announces Model RVC Rooftop Unit with Enthalpy Core

    New Model RVC Provides Low Maintenance Energy Recovery Greenheck’s new model RVC (Rooftop Ventilator with Energy Recovery Core) is the latest addition to its dedicated outdoor air systems line for high percentage and 100% outside air applications. Model RVC incorporates a total enthalpy core that pr

  • Greenheck Supports Healthy Indoor Air In Schools

    Proper Ventilation Contributes to Improved Learning Environment 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 e

  • Greenheck Celebrates 75 Years

    Company continues to excel through values established by its founders in 1947 Greenheck, the global leader in engineering and manufacturing air movement, control, conditioning, and distribution equipment, is celebrating its 75th anniversary. Founded by brothers Bob and Bernie Greenheck upon their re

1 2 3 Next Page 1 of 3
Results per page: