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HVAC School title: HVAC and Refrigeration Free Training

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Common Concrete Anchor Fails

No matter what trade you work in, you will need to use a concrete anchor at one time or another. Here are some mistakes I have seen (and made) that you will want to avoid:

Not knowing your concrete

Is it a concrete block hollow cell? Poured...


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Old Books

I've always liked old books.

Think about an old printing press somewhere in Chicago or Boston or Scranton, Pennsylvania.

Imagine workers with their hands covered in ink up to their elbows, setting type while giant machines of iron, steel, and brass stamp out a book page by page. Then those pages go on to be bound, crafted in a way that few things are now...


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A Common-Sense Look at Temperature Conversions

Before we convert temperature scales, let's take a step back and think about what temperature is in the first place.

Temperature is proportional to the average kinetic energy of the random microscopic motions of the constituent microscopic particles, such as electrons, atoms, and molecules.

Translation: Temperature is the average “moveme...


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The EPA’s 15-Pound Refrigerant Threshold in 2026

As of January 1, 2026, refrigerant regulations in the United States have undergone YET ANOTHER big shift. Per Subsection H of the American Innovation and Manufacturing (AIM) Act, which was passed by Congress and signed into law in December 2020, the Environmental Protection Agency (EPA) has officially expanded leak repair and recordkeeping requirements to a m...


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Key Takeaways From the 7th Annual HVACR Training Symposium

This is a recap of the 7th Annual HVACR Training Symposium session, with a few key themes and takeaways. If you missed the symposium but find some topics of interest in this tech tip, you can still purchase a virtual ticket at hvacrschool.com/symposium


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