Dan Wildenhaus

Company name: Center for Energy and Environment

Position: Senior Technical Manager

As a Technical Advisor, trainer, and consultant for residential, multifamily, and small business programs, Dan has become completely immersed in the discussion of what is required to create High-Performance Buildings and the technologies that operate within them. After completing his bachelor’s degree at the Evergreen State College, with a focus on Energy Studies, Dan has developed over 29 years of experience, 15 of them working directly for a contractor, performing energy audits and Ratings, weatherization and HVAC repairs, consulting, and analysis for private clients in both New Construction and the existing buildings market. Almost 15 years ago, Dan transitioned to the consulting side of the business, working with program implementation companies and finding a home at the Center for Energy and Environment. Dan currently provides Decarbonization and HVAC consultation, technical management, market channel development, and training and presentation services for a variety of programs across the country.

Tech Tips written:

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Double Lugging, A Common Mistake

Connecting more than one wire on or under a single lug or connection point is called “double lugging,” and it is ONLY allowed in line voltage wiring under one condition, according to NEC 110.14: If the terminal, lug, or connector is specifically rated for more than one wire In the case of a conductor splice, […]

Pitch on Line Penetrations

Most techs and installers know that drains need to be pitched. I use the rule of thumb that drain lines should generally be pitched 1/4″ per foot of horizontal run. One thing that can easily be forgotten is pitching wall penetrations when drilling. It’s as simple as drilling with a slight upward angle if drilling […]

It Has a Flat For a Reason

When tightening down a blower wheel or a fan blade on a motor shaft, ONLY tighten it on the flat of the shaft. That flat is machined into the shaft on purpose. It gives the set screw a face to bite into instead of a curve to slide off of. On most residential motors, it […]

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