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Now I see why the Grundfos person posted the video on You Tube.........
I got my copy of Contractor Magazine, and the whole front cover (Advertisement) is ALL about Taco's variable speed controller based on delta T, and they are claiming that energy savings associated with ECM motors are garbage, and that their product holds a significant potential for electrical savings. Now, I know this is going to create some controversy, but being as familiar with the ECM circulators that are on the market, I'd like to take Taco to task, and have them prove to me, and the rest of the hydronic world how it is that they arrived at this conclusion.In my little minds eye, there is NO WAY that a conventional Taco 00 motor could possibly be more efficient than an ECM motor, regardless of the ECM manufacturer.They are claiming that Delta T is more efficient than Delta P, which is what most ECM circulators are programmed to run on.I'd love to see more of their assumptions...Anyone? Taco,WILO, Grundfos, Buehler??? Buehler???ME
PS, heres a link to their article
It's not so much a case of "You got what you paid for", as it is a matter of "You DIDN'T get what you DIDN'T pay for, and you're NOT going to get what you thought you were in the way of comfort". Borrowed from Heatboy.