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Just replaced my Mag 12 return pump with DCT-4000 at full power. The Mag 12 has run for something like 5 to 10 years 24/7 with no problems. ( It still runs ) The Mag 12 was running at 79 watts. The DCT-4000 is running at 34 watts.
If my math is correct, 24 hours x 45 watts ( savings ) = 1080 watts or 1.08 kilowatt hour every day. 1080 watts x 365 = 394,200 watts or 394.2 kWh per year.
Using a 20 cent per kWh price, ( I've got time of use metering to go with my Solar panels ) we get 394.2 x .2 for a savings of $78.84 each year over the Mag 12.
I paid $63 for DCT-4000.
I don't know how long it will last ( I would think running it 24/7 would increase the life span if not using the feeding feature ), but if I make it to one year, the pump has payed for itself.
As for noise, my skimmer pumps are much louder, so I can't tell how quiet it really is. I can say that there was virtually no vibration on the return line, so little in fact that I had to check if the pump was running. It was.
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