> ...all the work (power) the motor for the compressor > and the two more for fans of the condenser and > evaporator, would consume more energy Vs the > heat efficiency of simply using a resitive heater?
Not at all. The energy of the fan and pump are about 1/3rd or so of the heat you get out of it. When I turn my cheap 5000 BTu window AC around in the winter and use it as a heatpump in the winter, its not only pumping 5000 BTU of heat into the house, but the electric energy of the fans and compressor are also on the hot side and also in the house, so the 600 Watts of electrical power (about 2000 more BTU) are also in the house, so we are getting a total of about 7000 BTU of heat for only 2000 BTU of electricity. Not bad at all. Of course, the window AC was not designed to be a haetpump and I dont expec it works well at all below about 40 F outside temperature, but it is great above that. Bob, WB4APR > >> -----Mensaje original----- >> De: EV [mailto:ev-boun...@lists.evdl.org] En nombre de Robert Bruninga >> via >> EV >> Enviado el: jueves, 24 de diciembre de 2015 11:55 a.m. >> Para: Electric Vehicle Discussion List >> Asunto: [EVDL] EV Heatpump Retrofits >> >> All it takes to install a heatpump in an EV is to find a place for a cheap >> $89 window airconditioner turned backwards. >> >> I use Window AC units for heat in my kitchen, bathroom, and at times past >> in >> the hallway. >> >> I was astounded when I tried running one on a cheap $99 12v/120v modified >> sinewave inverter and it started right up. It ran with a load of about >> 650 >> watts. >> >> Now all you have to do is figure out where to put it in the EV. And that >> is >> not as much of a challenge as you might think, depending on your >> aesthetics. >> >> of course when you need it most, and the coldest eemperatures it wont be >> worth much and will freeze up. >> >> Bob, WB4aPR >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: >> < >> http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20151224/4f69fa7f >> /attachment.htm> >> _______________________________________________ >> UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub >> http://lists.evdl.org/listinfo.cgi/ev-evdl.org >> Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag >> racing at NEDRA (http://groups.yahoo.com/group/NEDRA) >> >> >> _______________________________________________ >> UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub >> http://lists.evdl.org/listinfo.cgi/ev-evdl.org >> Read EVAngel's EV News at http://evdl.org/evln/ >> Please discuss EV drag racing at NEDRA ( >> http://groups.yahoo.com/group/NEDRA) >> >> >> > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > Read EVAngel's EV News at http://evdl.org/evln/ > Please discuss EV drag racing at NEDRA ( > http://groups.yahoo.com/group/NEDRA) > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20151228/75f124fe/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
