Lianna Schwalenberg

Lianna Schwalenberg is an HVAC service technician at The K Company, located in Akron, Ohio. She specializes in residential service, but helps out with maintenance and repairs in commercial settings as needed.

Guest Column

An HVAC Technician’s Guide to Humidity

How humidity, dew point, and air temperature interact to create — or prevent — moisture problems

Lianna Schwalenberg

April 20, 2026

Moisture problems show up everywhere in HVAC systems. Knowing how humidity behaves in air can make troubleshooting condensation and comfort issues far easier.

Guest Column

How Tankless Water Heaters Work

What makes tankless systems different from traditional heaters?

Lianna Schwalenberg

February 2, 2026

Tankless systems eliminate storage tanks, but demand proper sequencing, balanced piping, and regular flushing to perform as intended.

A Technician’s Quick Guide to Non-Invasive System Checks

How to troubleshoot without gauges

Lianna Schwalenberg

July 7, 2025

No ports? No problem. Here are three proven ways to check refrigerant charge without gauges.

Guest Column

3 Things HVAC Techs Forget About Airflow

A technician’s quick guide to airflow troubleshooting

Lianna Schwalenberg

July 3, 2025

With cooling season in full swing, it’s time to revisit airflow basics.

Anatomy of a 3-Wire Zone Valve

Lianna Schwalenberg

March 14, 2025

Confused about zone valves? Here's an in-depth breakdown of how to work on them.

How A Heat Pump Water Heater Works

Considerations to make as government invests in heat pump technology

Lianna Schwalenberg

September 9, 2024

While homeowners should do their own research and hire a trained professional, heat pump technology offers a reliable alternative to carbon-based fuels, and there are plenty of incentives available, to boot.

10 Things to Know Before Your First Mini-Split Call

Lianna Schwalenberg

August 21, 2024

The first time a technician has to tackle a ductless mini-split can be nerve-racking, but by following these 10 tips, the job can be done without all the anxiety.

How a Fan Center Works

Understanding the basics key to troubleshooting older furnaces

Lianna Schwalenberg

July 13, 2024

For technicians who run across older furnaces where air conditioners were later added, it pays to know how a fan center operates.

Basic Steps For HVAC Coil Cleaning

The fine details in a professional spring maintenance

Lianna Schwalenberg

June 7, 2024

Cleaning coils is a fairly simple task, but one that plays an important role in keeping a unit running strong.

How A Water-Source Heat Pump Works

Basics of water-source heat pumps key to understanding geothermal technology

Lianna Schwalenberg

May 22, 2024

To help the industry better promote geothermal heat pump technology, it first needs to have an understanding of exactly what is going on during its heating and cooling process.

On Demand As AI workloads and high-density computing push traditional cooling methods to their limits, the data center industry is accelerating the adoption of next-generation HVAC technologies.

In this webinar, we'll walk you through exactly what to get in place before you add AI to your business. You'll leave with a clear picture of where you stand today and a practical action plan to set yourself up for real results.

Lianna Schwalenberg

ARTICLES

An HVAC Technician’s Guide to Humidity

How Tankless Water Heaters Work

A Technician’s Quick Guide to Non-Invasive System Checks

3 Things HVAC Techs Forget About Airflow

Anatomy of a 3-Wire Zone Valve

How A Heat Pump Water Heater Works

10 Things to Know Before Your First Mini-Split Call

How a Fan Center Works

Basic Steps For HVAC Coil Cleaning

How A Water-Source Heat Pump Works

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