Agreed: Right now my plumbing design calls for a closed loop, but I am really considering Tunze's. The cost of the pump, a scwd, some pvc and drilling three holes almost makes it worth paying for thr Tunze system. And yes, in the long run power cosumption may offset the cost difference between the pump and the Tunze setup. Not to mention the tunze flow would be superior to a predictable flow two sided loop on a SCWD. Anyone know of any good deal on Tunze controler and two heads/pumps?
-Erik