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🕯️ When the Lights Go Out: Are You Ready for a Nationwide Blackout?

  We live in a world powered by electricity—from our homes and hospitals to water systems and the internet. But what happens when it all stops? Blackouts aren't just local annoyances anymore. Around the world Around the world, we've seen entire countries plunged into darkness—from Venezuela to India and even parts of the US These blackouts disrupt more than just lights—they halt communication, food supply, water access, healthcare, and public safety. This growing reality inspired the new book "When the Lights Go Out: Understanding and Preparing for Nationwide Blackouts." 🔍 What You'll Learn in the Book: The Causes : Natural disasters, cyberattacks, infrastructure failure, and more The Impact to lose : How power loss cascades across water, food, health, and transportation Prevention : What governments, utilities, and communities must do Preparedness : Practical tips for individuals and families—what to stock, how to plan Recovery : How nati...
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Chillers vs direct expansion

 Chillers vs direct expansion

hvac chiller


There are a few key differences between chillers and direct expansion (DX) systems that should be considered when selecting a cooling system for your facility. Chillers use a refrigerant to transfer heat from the water being cooled to the air around the chiller unit. DX systems use a direct expansion of refrigerant in the coils to transfer heat directly from the air to the refrigerant. Chillers are typically more energy efficient than DX systems and can provide a higher level of cooling capacity. Chillers also typically have a longer lifespan than DX systems. DX systems are typically less expensive to install than chillers and can be used in smaller spaces. DX systems also typically have a shorter lifespan than chillers. When selecting a cooling system for your facility, consider the energy efficiency, cooling capacity, lifespan, and cost of each system to decide which is best for your needs.



Conclusion

There are a few key differences between chillers and direct expansion (DX) systems that should be considered when selecting a cooling system for your facility. Chillers typically offer a more energy efficient and longer lasting solution, while DX systems are less expensive and can be used in smaller spaces. Consider the energy efficiency, cooling capacity, lifespan, and cost of each system to decide which is best for your needs.

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Charles Nehme,
HVAC Global consultant and educator.
Services, books, courses, blog, vlog & much more.

www.cfn-hvac.com

My HVAC books on Amazon. Also found on Apple, Google, Barnes & nobles and Payhip.



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