Indoor air quality, air circulation, and operating costs.


Retrofitting PSC Motors with ECMs

Replacing PSC Motors with ECMs Can Boost Bottom Line, Improve Customer Comfort

While not all contractors consistently offer ECMs, those who do often report increased profits as well as improved customer comfort and satisfaction.

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Rosenberg USA Inc.: Backward Curved Fan

The DKHR Series backward curved impellers equipped with integral inlet cones are available in 630- and 710-mm sizes and are suitable for a wide range of HVAC and air-movement applications. 

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Furnace Standard Fans the Flames

DOE Rule Regulates Components for the First Time

Manufacturers will initially bear the brunt of this change, as they will need to redesign their furnace lines in order to comply with the new standard, which takes effect in 2019. 

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Greenheck Fan Corp.: Duct Heater

The Model IDHB duct heater is configurable for most applications in sizes up to 36 by 36 inches. 

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Greenheck Fan Corp.: Mixed Flow Inline Fan

The Model EQB mixed flow inline fan has a unique octagonal housing and is formed from galvanized steel panels coupled with a heavy-gauge steel drive frame that provides exceptional strength and durability.

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Greenheck Fan Corp.: Aluminum Louver

Model AFL-501 is a 5.5-inch-deep, severe-duty aluminum louver that protects exterior wall penetrations on FEMA 361- or 320-compliant storm shelters or safe rooms.

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Fridgewize Inc.: Refrigeration Fan Blades

The carbon fiber Q12 and Q10 evaporator motor fan blades are engineered to significantly reduce energy consumption. 

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Continental Fan Mfg. Inc.: Process Ventilation Fans

The MID Mixed Flow In-line Fans utilize the patented MF Mixed Flow Impeller, incorporating adjustable blade geometry for exact performance matching. 

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Food Service, Retail Embrace Air Curtains

Air Doors Finding Broader Uses in Many Sectors

Air curtains keep unwanted cold or hot air from infiltrating an open doorway during winter or summer, respectively. The units also keep out flying insects and maintain a comfortable working environment for employees.

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Rosenberg USA: Backward Curved Fan Module

The new trestle-design GKHB 5.5kW backward curved fan module combines an ECM with the high-efficiency Rosenberg B-Wheel impeller for even greater efficiency and easy installation. 

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Fan Energy Efficiency in High-Performance HVAC Systems


ON DEMAND This webinar offers HVAC equipment engineers a basic review of fan engineering from an energy perspective.

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Image Galleries

2014 World Energy Engineering Congress

Scenes from the 2014 World Energy Engineering Congress in Washington, D.C.


NEWSMakers: Kari Arfstrom

Kari Arfstrom, executive director of the HVACR Workforce Development Foundation, talks about the upcoming HVACR & Mechanical Conference. Posted on Jan. 23.

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NEWS 01-26-15 cover

2015 January 26

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Regional Standards

With regional standards for a/c equipment going into effect in 2015, how do you think it will impact the industry?
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2015 National Plumbing & HVAC Estimator

Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

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