View, download and print full catalogs, one-page flyers, and technical briefs found below.
Scroll to the bottom of the page to view featured EHG projects. Be sure to visit this page often for up-to-date files. If you don’t see what you are looking for, please give us a call. Representatives can order printed literature by submitting a completed order form to [email protected].
SINGLE WALL ROUND – FEATURING EHG G-3® EHG G-3® duct and fittings classic collection with nomenclature for both gasketed and nongasketed connections.
SINGLE WALL ROUND – NONGASKETED EHG G-0® duct and fittings classic collection with nomenclature for nongasketed connections.
DOUBLE WALL ROUND – FEATURING EHG G-3® EHG insulated duct and fittings classic collection with nomenclature for both gasketed and nongasketed connections.
FLAT OVAL EHG handcrafted oval ductwork in both single and double wall.
AIR DISTRIBUTION Find registers, louvers, diffusers, and more in this catalog.
SILENCERS EHG manufacturers silencers for both round and rectangular duct systems.
INDUSTRIAL The Industrial catalog provides a glimpse into EHGs’ capabilities. This is also where dust collection systems are explained.
Technical Briefs/White Papers
AIR LEAKAGE UPDATE – ASHRAE Overview (2017)
Over the last ten years there has been a major shift in the way ASHRAE has approached air leakage in ductwork. This is reflected in the latest revisions of the following ASHRAE Handbooks and Standards:
1. ASHRAE Standard 90.1-2010 Energy Standard for Buildings Except Low-Rise Residential Buildings
2. ASHRAE Handbook, HVAC Systems and Equipment (2012), Chapter 19, Duct Construction
3. ASHRAE Handbook, Fundamentals (2013), Chapter 21, Duct Design [READ MORE]
THE EFFICIENCY IN ROUND
Originally published in October 2015 issue of Engineered Systems
According to a study conducted by Lawrence Berkeley National Laboratory for the Department of Energy (DOE), duct leakage is the leading cause of energy inefficiencies in commercial buildings. On average, duct leakage wastes 28.6 billion kw-hrs of electricity per year and costs U.S. building owners nearly $3 billion annually. These startling statistics make it imperative that duct systems move air to every VAV box quietly and efficiently to reduce energy consumption and leakage rates. [READ MORE]
THE IMPACT OF DUCT LEAKAGE – White Paper
Air duct leakage should be a concern to both the design engineer and the building owner because of its potential impact on the initial construction costs, energy usage, and system performance.
Every duct system requires power. Power drives the fan or blower unit needed to move the air over or through the resistance elements and power operates the compressor or heating elements depending on the desired function. No matter the size, the total benefit of the duct system is based and measured on the peak fan efficiency for that system. [READ MORE]
OUTDOOR DUCTWORK – Technical Brief
Specifying outdoor ductwork exposed to the weather needs to be given special consideration. The standard of care for the design professional is outlined in the ASHRAE 2012 Handbook (HVAC Systems and Equipment) [READ MORE]
PAINTGRIP – Technical Brief
Paint Grip is a “trade name” referring to galvanize steel that has a phosphatized or bonderized coating. This has traditionally (old school) been accomplished by acid washing the surface with phosphoric acid to etch the zinc, or more currently, by galvannealing which changes the surface metallurgy of the zinc coating rendering a matte uniform grey color. [READ MORE]
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