Quote:
Originally Posted by intarsiabox
Not really, you can get VFD's (variable frequency drives) to control AC pumps. A lot of commercial/industrial buildings use this method for their pumps and fans to cut down on energy costs. Small VFD's have come down in price a lot but whether the cost of adding one would save you any money in the long run or not I couldn't say, and not at all if you are just going to run the pump at 100% all day long. Not all motors are VFD compatible either so that is something else to confirm. If I were starting from scratch and needed a return pump I would go with a DC model if it was as capable as a similarily priced AC pump in an instant.
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Not to forget by restricting outlet of AC pump like the Barracuda, flow and
power draw will decrease.
Sphelps, 4m and 4000l/h @ 85w still sounds to good to be true as that 3-4X the efficiency of the Reeflo