

| Subject: | Re: Fridge on DC power |
| From: | Dave Mcneely |
| Date: | Thu, 12 Jul 2012 10:57:22 -0500 |
I have usually simply leveled my camper by eye, and that seemed ok. But now I carry a level. Can't tell any difference in operation, but I get set up quicker. mcneely ---- David Beierl <dbeierl@ATTGLOBAL.NET> wrote: > At 11:26 PM 7/11/2012, Gab and Em wrote: > >So, which is the strongest mode for the fridge: AC, DC or propane? > > I reckon the strongest mode is sitting still, dead level.* Seriously. > > AC and DC both use 85-watt nominal heaters, inserted into tubes stuck > onto the outside of the boiler. The DC one because of its low > voltage is much more sensitive to voltage drops in the supply circuitry. > > The fire goes up through the middle of the boiler which may be better > for heat transfer. The flame IIRC is rated ~650 BTU/hr, but a good > deal of that goes up the flue. > > In theory they should be about the same -- Dometic got to choose any > size burner and heater they wanted when they built the thing, so if > they did their work well it should work equally well from any > source. But in practice it's harder to keep the DC working up to snuff. > > *Just in case you don't have the manual - the fridge is rated for +/- > 6* in either direction while standing still. Exceeding those angles > will cause progressive caking of the ?sodium sulfide? anticorrosion > agent inside the boiler which will progressively damage and ruin the > cooling operation. Operation underway is not limited because of the > same sloshing effect that reduces operating efficiency. > > Yrs, > d -- David McNeely
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