HVAC – The Basics of V-Belts

Until I began to specify belts for HVAC Accessory fans and motors, I thought a belt... was just a belt. Here's valuable information I'd like to share with anyone seeking to understand the basics and differences in V-Belts. There are so many belt types available. I'll...

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HVAC Hoods – The Basics 101

The general purpose of an HVAC Outdoor Air Hood is to allow outside air into the HVAC Rooftop Unit (RTU) while preventing rain and other outside elements from entering. I state general purpose, because not all HVAC Hoods serve that purpose…

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MicroMetl 50th Anniversary & Contest

The month of August 2015 is a milestone for MicroMetl as we celebrate 50 years! Under the leadership & guidance of Owner Gerald Schultz, MicroMetl has grown to three facilities; Our Headquarters in Indianapolis Indiana , Sparks Nevada, and Longview Texas. Today...

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What Are HVAC Enthalpy & Dry Bulb – Part I

One of the most frequently asked questions to our customers purchasing HVAC equipment requiring controls is "Do you want Enthalpy or Dry Bulb Sensors?" I'd like to explain Enthalpy & Dry Bulb Sensors, and their differences, without getting overly technical, or having...

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What is HVAC Static Pressure?

Allow me to begin with a simplistic analogy used to explain "What is Static Pressure?" A fan or blower inside a furnace is setup to deliver a specific amount of air. Let's compare that airflow to a man pushing a shopping cart. A cart holding five pounds of groceries...

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Prior to 1975, there was no universal standard of measurement for rating HVAC energy efficiency. So the Air Conditioning & Refrigeration Institute (ARI) introduced The Energy Efficiency Ratio (EER) for the purpose of rating the cooling efficiency of HVAC units. The...

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HVAC Fan Types – Is a Fan Just A Fan?

HVAC Fan Types -- Is A Fan Just A Fan? - Not at all. It’s important to understand basic fan types to properly understand how to choose the best, most cost effective type for the job. Know your fan types. All fans are designed for the sole purpose of moving air. Most...

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