Half the Air You Need, Twice the Energy You’re Paying For

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How efficient are HVAC systems in filtering virus

The APS manual highlights concerns about the effectiveness of HVAC system upgrades in mitigating COVID-19 transmission. While authorities have recommended increasing ventilation and upgrading filters to MERV 13, APS questions the necessity and efficacy of these measures.

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Prove me wrong!

I am not someone who likes uncertainty. I am an energy researcher. When a result does not match the prediction, you find the error, fix it, and move on. For years, I could not find the error. My device kept outperforming what the standard calculations said it should be able to do. Consistently. Repeatedly. By around 26 percent. So I did the one thing that made me genuinely nervous — I handed everything to an independent expert and asked him to prove me wrong.

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Questions?
VAV boxes provide cooling in harmony with heating coils, with both functions controlled by a single thermostat. In many systems, the VAV box minimum airflow is set at approximately twice the airflow required for ventilation. This unnecessary airflow increases energy consumption by requiring additional heating and cooling. This video explains the cause of the problem and outlines a practical solution.