Announcing Flow-Box Powered Flow Hood Converter

The Flow Box™ is Now Available! Finally! An accurate and reasonably easy way to measure total system fan flow. Poor system airflow is one of THE biggest problems in residential HVAC efficiency.  That is why proper airflow will be a mandatory requirement for all new ducted A/C systems in California’s 2013 Title 24 Energy Code (eff. July 1, 2014).  In most new systems it will have to be tested by a third party (HERS raters). When the California Energy Commission first expressed concern over standard, passive flow hoods (based on a Lawrence-Berkeley study) was when I first looked into powered...

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