The Thermostat Lied

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150 Years of Actuators in One Room

From an 1874 patent to David Strain’s latest designs — this video puts them all in motion. Watch the fluid flow through each one. Understand how mechanical advantage actually builds. The history of actuator design, demonstrated side by side.

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Letter of support

David Strain’s invention demonstrated an efficiency advantage greater than 15°/o favoring the diamondshaped
actuator over a conventional actuator.

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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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The Inventor Answers Back

You watched the videos. You had questions. David Strain — the inventor behind an internationally patented climate change solution — sits down to answer the ones that came up most. The invention, the principles, and the thinking behind it. In his own words.

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The Thermostat Lied (And Your Energy Bill Told the Truth)
VAV boxes provide cooling and a heating coil in harmony, with both functions controlled by a single thermostat. When the heating valve no longer seats properly, unwanted heat continuously enters the airstream. The thermostat automatically responds by increasing cooling to maintain the desired room temperature. As a result, occupants remain comfortable while energy is wasted through simultaneous heating and cooling—a problem that often goes unnoticed because the control system masks the inefficiency.