Hi David, It's been a VERY long time since we last spoke! The Lorentz is a very good pump and being positive displacement and powered DC direct (w/o inverter) it is going to be about 4x the efficiency of the Grundfos SQ AC pump. It is likely that the Grundfos will outlast it, but if it is there I would use it up 1st as it could go 20 years. The earlier issues w/Lorentz ended in 2005 when they redesigned their stator. I'm now moving my o-t-g pump of choice from the SQ Flex to the Lorentz. The reasons: 1) Grundfos is dropping "our normal" distributors and selling them only through AC pump dealers. 2) Grundfos costs more, 3) Lorentz now lasts just as long, 4) You can rebuild a Lorentz (even in the field), 5) the electronics are on the wall not submerged "down-the-hole" as w/Grundfos. 6) A HUGE range of pumps are now available from Lorentz.
Yes, it is 48Vdc nom. (the only thing I don't like, the Grundfos accepting up to 300Vdc can have application advantages.) Take care, -jeff o >From the Solar, Wind and Hydro powered office of Jeff Oldham/Regenerative >SOLutions ____________________________________________________________ Penny Stock Jumping 2000% Sign up to the #1 voted penny stock newsletter for free today! http://thirdpartyoffers.juno.com/TGL3131/4bcf7796e07881377b7st02vuc _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
