Technical Articles

Fan selection, airflow, controls, installation and application knowledge.

Warehouse-Ventilation-Fans--Complete-Gu
By longwell / September 3, 2026 / Technical Articles

Warehouse Ventilation Fans: Complete Guide

In large industrial and logistics facilities, maintaing air quality an...

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Plug-Fan-vs-AHU-Fan--What-is-the-Differ
By longwell / September 2, 2026 / Technical Articles

Plug Fan vs AHU Fan: What is the Difference?

Buyers may ask the question if the plug fan and AHU fan are competing ...

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Centrifugal Fan Needs Replacement
By longwell / September 1, 2026 / Technical Articles

Top 5 Signs Your Centrifugal Fan Needs Replacement

Centrifugal fans are widely used in HVAC, industrial ventilation, dust...

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top 10 industrial fan suppliers 2026
By longwell / August 28, 2026 / Technical Articles

Top 10 Industrial Fan Suppliers 2026

The industrial fan market in 2026 is being reshaped by several structu...

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tangential blower vs cross flow fan
By longwell / August 26, 2026 / Technical Articles

Tangential Blower vs Cross Flow Fan: Are They the Same Thing?

Efficient airflow and ventilation are essential for optimal equipment ...

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ec motor fan efficiency
By longwell / August 25, 2026 / Technical Articles

92% EC Motor Fan Efficiency: Technology, Design & Performance

As HVAC system meets increasingly stricter efficiency requirements, EC...

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plug fan vs housed fan
By longwell / August 24, 2026 / Technical Articles

Plug Fan vs Housed Fan: Energy & Space Savings Comparison

If you want to design an HVAC system, size the AHU, or replace the age...

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TOP 10 EC Fan Manufacturers 2026
By longwell / August 20, 2026 / Technical Articles

TOP 10 EC Fan Manufacturers 2026

Introduction: Selecting the right EC fan manufacturers has become an i...

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ventilation fan CE UL ETL RoHS
By longwell / August 18, 2026 / Technical Articles

Ventilation Fan Certifications: CE, UL, ETL, RoHS – What Each Means?

Performance specifications like airflow, static pressure, and noise le...

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longwell heat pump ventilation fan
By longwell / August 15, 2026 / Technical Articles

Heat Pump Ventilation Fan: How to Choose EC Fans for Heat Pump Systems?

A heat pump is used to heat pipes. Heat pump systems have nowadays bec...

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