Dan Hahne

Dan Hahne has a BFA degree from University College London and an MFA from Boston University. He has been in the HVAC industry for 36 years, beginning in 1985 working as an estimator for Norman S. Wright Co. SW., in the southwestern U.S., where he transitioned into outside sales. In 2000, Dan joined Air Specialty Products as an outside salesman selling before moving into engineering sales in 2008, where he became a proponent and educator on high-performance HVAC system designs. In 2016, he took a new position with Varitec Solutions, Arizona, as a senior sales engineer, serving in the role of educator for sustainable HVAC system concepts, products, and applications. In 2020, he became a resource for creating healthier environments by improving building IAQ since the advent of the COVID-19 pandemic. Contact him at danh@varitecsolutions.com

Decoupled Hydronic Systems: The DX-DOAS Advantage

SmithGroup's applies innovative chilled beam design to meet peak demand in Phoenix office remodel

Dan Hahne

Jon Silhol

February 5, 2025

Examining more closely how a building’s sensible and latent loads can be more effectively met opens numerous design possibilities, ES NEWS guest contributors argue.

Creating an Innovative Building Design through Creative, Adaptive Architecture, Engineering, and Collaboration

Meeting developing building standards, codes and assuming best practices to support high-performance buildings, will require architects and engineers to collaborate holistically.

Dan Hahne

Conrad Brown P.E.

Matt Peairs P.E.

September 22, 2023

Meeting developing code requirements to reduce carbon emissions while creating environments with better IAQ will challenge and impact conventional building HVAC system designs.

100% Outside Air Systems – Passive Radiant Cooling & Heating Systems

Passive radiant heating and cooling system designs exploit the properties of all heat transfer modalities for enhanced system efficiency and healthier built environments.

Darren Alexander P.E.

Dan Hahne

December 8, 2022

Passive radiant heating and cooling system designs exploit the properties of all heat transfer modalities for enhanced system efficiency and healthier built environments.

100% Outside Air VRF Systems: A Sustainable, Hybrid Approach for Superior IEQ

Increasing the amount of outside air to the occupied space and increasing ventilation air change rates are effective solutions for reducing concentrations of contaminants and the risk of infection.

Dan Hahne

July 6, 2022

Increasing the amount of outside air to the occupied space and increasing ventilation air change rates are effective solutions for reducing concentrations of contaminants and the risk of infection.

Health Care Design: Beyond Code Minimum – Creating Healthier, More Efficient Environments

Dan Hahne

Fletcher J. Clarcq P.E., CEM, LEED AP BD+C

October 7, 2021

The technologies to reduce pathogenic infections exists — so why aren’t we using them?

Health Care Design: FGI Guidelines, ANSI/ASHRAE/ASHE Standard 170, and Beyond

Fletcher J. Clarcq P.E., CEM, LEED AP BD+C

Dan Hahne

June 17, 2021

Engineers must design a space that responds to the needs and requirements of the building but also promotes an environment that is conducive to healing and well-being.

Debunking Myths of Active Chilled Beams: What You Thought You Knew — But Were Wrong, Part 2

SmithGroup, Varitec, and Dadanco analyze the response time of an active chilled beam when the space’s total load rapidly increases.

Fletcher J. Clarcq P.E., CEM, LEED AP BD+C Steve Lamica

Dan Hahne

November 5, 2019

In our previous article, “Debunking Myths of Active Chilled Beams: What You Thought You Knew – But Were Wrong, Part 1,” engineers from SmithGroup and Dadanco, along with senior sales engineers from Varitec

Debunking Myths of Active Chilled Beams: What You Thought You Knew But Were Wrong, Part 1

How long does it take for condensation to form on an active chilled beam? A group of engineers at SmithGroup used testing and analysis to answer that question and more.

Dan Hahne Eric Martin

Fletcher J. Clarcq P.E., CEM, LEED AP BD+C Steve Lamica

October 21, 2019

Chilled beams offer building owners greater energy efficiency, reduced building first cost, reduced day-two maintenance, and improved indoor air quality.

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.

Dan Hahne

ARTICLES

Decoupled Hydronic Systems: The DX-DOAS Advantage

Creating an Innovative Building Design through Creative, Adaptive Architecture, Engineering, and Collaboration

100% Outside Air Systems – Passive Radiant Cooling & Heating Systems

100% Outside Air VRF Systems: A Sustainable, Hybrid Approach for Superior IEQ

Health Care Design: Beyond Code Minimum – Creating Healthier, More Efficient Environments

Health Care Design: FGI Guidelines, ANSI/ASHRAE/ASHE Standard 170, and Beyond

Debunking Myths of Active Chilled Beams: What You Thought You Knew — But Were Wrong, Part 2

Debunking Myths of Active Chilled Beams: What You Thought You Knew But Were Wrong, Part 1

Sign Up. Stay Informed.

The #1 trusted source for the HVACR industry since 1926