Commercial HVAC

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At the very, very end of 2016, the Department of Energy issued “final rules” for a few types of equipment/appliances.

They don’t make them like they used to — especially when it comes to turn-of-the-century and post-WWI era infrastructure.

Does maintenance save money? Many numbers get thrown around when it comes to estimating the savings achieved by performing certain maintenance activities.

Authors Note: I want to thank Paul Ehrlich for his years of dedication to this column, and I am excited to be able to provide readers with my building automation thoughts, insights, etc., on a monthly basis.

Now that I have your attention, let’s talk about the pros and cons of inhaled carbon dioxide.

This month, I am continuing my series on commissioning “simple” HVAC equipment with hydronic unit heaters.

How often does an existing open condenser water system, or some other type of open water system, get reused as part of a building renovation project and/or mechanical system upgrade

This month, I begin a few columns about technical commissioning issues.

As engineers work to reduce the risk of Legionella growth in buildings, what strategies can be borrowed from treating illnesses caused by biofilms?  

How often does an existing closed loop hot water heating or chilled water cooling system get reused as part of a building renovation project, and/or used to expand the area served by the system coverage to provide additional heating or air conditioning?