Re: Tankless, LP water heater for mobile home?
I personally don't know of a sealed combustion unit that requires NO power. I think the auto ignition bosches use no power, but they are not sealed combustion.
Personally I would look at Rinnai, or Takagi.
PS. A little further info on the Takagi, (and I would suspect it to follow for the Rinnai as well) I think it uses less than 5 watts in standby, but if you put a switch on it, it would then use nothing in standby. I believe that it uses ~50 watts while running full bore, so if you take a 6 minute shower you would use ~5 wh, not to many in the grand scheme. Do that 10 times a day for showers, laundry dishes etc, 50 WH, still not too much, abou the same as burning a 15 watt CFL for ~ 3 hours. (The spec for the TK Jr is .51 amps at 120vac) which would be 61 watts.
Last edited by icarus; November 3rd, 2009 at 15:57 PST.
Please note, being a moderator does not add any weight to my opinions 300 watts Siemens/BP panels,plus a Sun 90,, making ~400. ~30 amps into Rogue MPT-3024, 450 ah of Trojan T-105, Morningstar ts300 inverter, a Tri-Metric meter.a collection of antique generators, plus 2 Honda eu-1000i's (also a BS2512 IX controller) and assorted other stuff!