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MicroMetl is the leader in HVAC Accessories Nationwide. Nearing our 50 year anniversary as a corporation, MicroMetl has nearly a half century of information and expertise. Only at MicroMetl will you get such a wealth of HVAC Industry knowledge. Stay above the learning curve, and visit us often for updates.

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HVAC - What Is An Adjustable Pitch Curb?

The Adjustable Pitch Curb is designed to pitch in any direction, and ships knockdown. It is less expensive than a fixed welded pitch curb, and offers job-site flexibility. Click Here To Read Entire Article...

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General

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 Click Here To Read Entire Article...

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 Click Here To Read Entire Article...

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 Click Here To Read Entire Article...

Roof Curbs At MicroMetl - MicroMetal

 

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Roof Curbs

Choosing The Correct Seismic Roof Curb - Understanding The Specif...

Choosing The Correct Seismic Roof Curb - Understanding The Specifications A previous MicroMetl Blog defined Seismic Curbs. Now that we understand the definition of seismic roof curbs, how are they applied Click Here To Read Entire Article...

HVAC Burglar Bars – Do They Work And Where Do They Belong?

Innovative criminals will try anything to gain access into a building. So when conventional breaking and entry methods either fail, or appear too risky, burglars often attempt entry through Heating, Click Here To Read Entire Article...

What Are Seismic Roof Curbs?

What Are Seismic Roof Curbs? The Merriam-Webster Dictionary defines Seismic as… “From subject to, or caused by an earthquake; also :  of or relating to an earth vibration caused by something Click Here To Read Entire Article...

Curb Adaptors At MicroMetl - MicroMetal

What Is A HVAC Curb Adaptor At MicroMetl SmallMicroMetl’s Seven Rules for Installing a Curb Adapter!

 

 

Curb Adaptors

HVAC - What Is A Curb Adapter

What is a Curb Adapter? -- For anyone new to the HVAC industry, this is a valid question. Let's Start With A New Installation: When a building is constructed, prior to the Click Here To Read Entire Article...

MicroMetl's Seven Rules for Installing a Curb Adapter!

MicroMetl's... Seven Rules for Installing a Curb Adapter! Need The MicroMetl Curb Adapter Worksheet... Click Here! Here is a summary of the "7 Rules For Installing A Curb Adapter." For the details, Click Here To Read Entire Article...

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Energy Recovery

Before Replacing An ERV - Read This Article!

MicroMetl is celebrating 50 years of serving the HVAC industry. Over those years we have guided countless customers through an ever-changing maze of options to consider when installing or replacing Click Here To Read Entire Article...

Mixing Box & Economizer Topics - MicroMetl

 

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Mixing Boxes & Econos

Economizers – Setting Minimum Position

What is, And How To Determine Economizer Minimum Position Economizer instructions explain how to set, and adjust the minimum open position for outside air dampers via a controller. However, they don't Click Here To Read Entire Article...

Barometric Relief - What Is It, And How Much Air Does It Remove?

Barometric Relief What Is It And How Much Air Does It Remove? A reader recently asked; What is Barometric Relief, and how much air does it remove? It's important to provide fresh, Click Here To Read Entire Article...

What Is An Ultra Low Leak Economizer?

What Is An Ultra Low Leak Title 24 Economizer? Title 24 Economizer Mandatory & Prescriptive Defined, Title 24 Section 120.2 & 140.4 Excerpt PDF Click Here To Read Entire Article...

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Power Exhaust

What is a HVAC Power Exhaust -- Achieving Proper Ventilation

 What is a HVAC Power Exhaust? ...Achieving Proper Ventilation A previous MicroMetl Blog article offered a basic understanding of economizers. It is an Economizer 101 Summary and is a prerequisite to this Click Here To Read Entire Article...

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Electrical

The 101 Basics On NE...

If you think NEMA is the name of your long lost cousin, you're reading the wrong article. NEMA is an acronym for The National Electrical Manufacturers Association. Most often organizational ratings Click Here To Read Entire Article...

HVAC -- Single Phase...

The HVAC Industry offers end-user equipment operating with either single phase, or three phase electricity. We spec it every day, but what are the differences, and are there advantages. Electrical Phase Click Here To Read Entire Article...

Basic Electricity De...

Those of us in the HVAC industry are faced with the complexity of electrical jargon whether we like it or not. This article is designed to explain the jargon, without Click Here To Read Entire Article...

HVAC Sensors And Controls Menu

 

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HVAC Sensors & Controls

HVAC - What's the Difference Between A Motor & Actuator?

Actuators and motors are commonly used in the HVAC industry, but not completely understood. What's the difference between the two? Click Here To Read Entire Article...

HVAC Sensors - CO2 And On-Demand Ventilation

In a previous article I covered the two most common control sensors in HVAC -- Enthalpy and Dry Bulb (What Are HVAC Enthalpy & Dry Bulb - Part 1). In Click Here To Read Entire Article...