I love mine. It is quiet a little more than a refrigerator but nothing at all like a windw AC unit for noise. What I love about it is the serendipitous dehumidifying. My basement has always been a place of doom and mold and wetness. I was too cheap to run a dehumidifier (basically a year round AC unit going nowhwere)... Now I get that function for free while also heating hot water at 1/3rd the energy.
But, my wife is very picky. So I run it in hybrid mode. That is, the heatpump heats from the bottom of the tank upwards to 100 F (where it is most efficient) and then I set the top of the water heater to 120F which is done by electric. So, with incoming water at 60F, then the first 40 degrees is done ver efficiently maybe for 1/3rd the normal cost and the top 1/4th of the tank is raised another 20F to satisfy my wife. Donno how long it takes after full depletion. Never happens now that the kids are gone. Oh, and the heat pumped out of the basement is simply not noticed. I even call this a "ground source" water heatpump, because the basement is half concrete with normal floors and the other half is crawlspace over dirt. SO aany/all heat in the basement comes from the ground or waste heat from occasional laundry, yet the temperature in the basement never seems to get cold. Even though the heatpump water heater is taking heat out of it. Bob -----Original Message----- From: EV <ev-boun...@lists.evdl.org> On Behalf Of Peri Hartman via EV Sent: Saturday, July 28, 2018 11:48 AM To: Electric Vehicle Discussion List <ev@lists.evdl.org> Cc: Peri Hartman <pe...@kotatko.com> Subject: Re: [EVDL] Ot "heat pump" h20 heaters Mark, I've been considering a heat pump HW tank. My current tank is close to 20 years old and probably will need replacing soon. Two big concerns I have are - how long is the heat pump mechanism warrantied? - how noisy is it? A third question is how long does it take to get hot enough for a shower, if depleted? Assume 50F cold water. In our case, the garage, where we have the HW tank, is under our living space and very close to our master bedroom. I don't want to hear humming through the floor. Peri ------ Original Message ------ From: "Mark Hanson via EV" <ev@lists.evdl.org> To: leeah...@earthlink.net Cc: "Mark Hanson" <markehans...@gmail.com>; ev@lists.evdl.org Sent: 28-Jul-18 8:23:13 AM Subject: [EVDL] Ot "heat pump" h20 heaters >Hi Lee etc >I have a GE GeoSpring "heat pump" hot water heater that uses 600w >instead of 4500w resulting in about 1/4 the monthly kWh usage for the >same btu h20 heating and dehumidifies the basement. It's used in any >climate as long as your underground basement is 12x12 or larger. GE >etc just takes their refrigerator compressors and puts them in >backwards so it's really not a heat pump, just marketing speak for >consumers. You have to hook up the pee line like on your a AC unit >outside or use a condensate pump. Typically a 3 year payback. AO Smith >and Siebel etc make also. >Have a renewable energy day >Mark > >Sent from my iPhone >_______________________________________________ >UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub >http://lists.evdl.org/listinfo.cgi/ev-evdl.org >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 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 Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
