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The Retrofit That Made Things Worse

Induction units were already not winning any efficiency awards. Then came the BAS upgrades — and two mistakes that made a flawed system perform even worse. We found them in the field. This is what we saw.

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The Cure That May Have Made Things Worse

Some HVAC measures mandated for COVID and Legionnaires’ disease may have increased the very risks they were designed to prevent. The evidence didn’t always support the mandate. This video examines what the data actually shows — and what better alternatives look like.

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Questions?
Old HVAC systems don’t listen — they just run. Smarter control means only heating or cooling where and when it’s needed. That’s how buildings are saving up to 57% on
Why is your building still hot and stuffy even after professional air balancing? A commercial building kept getting uncomfortable in the afternoons. Three different air balancing companies tried to fix
Controlling humidity isn't just about comfort—it also helps reduce the spread of viruses and bacteria. While most standard humidifiers use a lot of energy, cold-water spray systems can actually help
Enthalpy is the total heat content value in air, considering both dry bulb temperature and relative humidity level. If either value changes while the other is constant the enthalpy value
HVAC systems that mix fresh air and building return air to varying quantities for cooling purposes often have control logic comparing the total heat content of the outdoor to the
Industry experts contacted indicated that the volume of a Bourdon tube does not change while flexing or they had no data on this consideration. If the industry consensus is true,
This HVAC case study examines the heating control systems in the oldest high school in Peterborough, Ontario, and proposes energy-efficient improvements.
APS has developed many unique HVAC logic circuits: improving comfort and reducing energy consumption. The reductions caused the avoidance of over 60,000 person-years of GHG emissions with a three-person crew.