In this video, you will learn how to install and set up an in-floor heating manifold for a radiant heating system connected to a boiler.

Having the right mindset is key to performing a quality maintenance visit. In this video, we will go over the key steps to performing maintenance on boiler systems. A safe, functioning system is vital to the success of the business and keeps technicians busy throughout the year.

Are you ready to learn about aquastat controls? This video shows you how they work, and how they control a boiler system.

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In this video, we will show you how to properly replace a failed boiler expansion tank on a system in the field. This is an important task for any boiler technician in the field. We will also give tips on how to make this process easier.

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Let's focus on the different types of boiler expansion tanks you will see in a residential setting. We will also cover the process of testing these in the field.

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In this video, we will show you in detail how to diagnose, troubleshoot, and replace zone valves on a boiler system in the field.

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You will be shown how to properly test a zone valve for operation on a hydronic heating system in the field. These should be inspected any time you are on a maintenance or service call.

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In this video, we will show you how to properly diagnose and replace an aquastat for a boiler system.

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Air is the enemy in a boiler system and needs to be removed from the system for proper operation. In this video, you will learn how to correctly purge air from a hydronic heating system using standard hoses and boiler drains.

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This video will demonstrate the proper way to diagnose and/or replace a pressure switch on a gas-burning appliance in the field.

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Here, we will show you how to test pressure relief valves and temperature/pressure gauges on boiler systems in the field, along with how to replace them.

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Here, we will show you how to properly clean ribbon burners on a non-condensing boiler system in the field.

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In this video, you will learn how flame sensors operate, and how to maintain them in a gas heating system.

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This video showcases the proper way to inspect a primary and secondary heat exchanger on a condensing furnace in the field. This method can also be done on non-condensing furnaces as well. This is an important part of any heating system inspection and/or service calls as well.

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This video guides you through the various types of igniters. You will also learn how to perform general maintenance on them.

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In this technical video, we will show you how to properly diagnose and troubleshoot common problems with igniters and flame sensors on gas-fired equipment.

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We will show you the importance of airflow on the coils and what types of problems are associated with airflow. We will look at indoor evaporator coils and outdoor condensing coils.

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We will show you the right way to replace an evaporator coil on a system. This is an important task that needs to be done by technicians in the field.

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In this video, we will demonstrate how to properly braze copper pipe and fittings which is much different than soldering. We will discuss purging with Nitrogen in detail in a separate video.

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Start-assist kits (hard starts), assist compressors in starting and reduce the starting current of the compressor. This video breaks down the process of checking and replacing these on a system.

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You will learn about the steps it takes to convert a system from natural gas to propane and what you need to do to install an LP conversion kit.

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This is a task you will do often with a mini-split or ductless system. In this video, we will show you the correct way to make flared copper joints.

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In this video, we will show you how to correctly test and replace a 120-volt power switch for a gas furnace.

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In this instructional video, we are going to demonstrate how to replace a heat exchanger on a condensing furnace.

Learn more about NexTech Academy's HVAC curriculum at https://www.nextechacademy.com