From: ganthony@gmail.net   
      
   Ted Heise  wrote:   
   > On Thu, 17 Oct 2024 07:55:36 -0700,   
   >   Ralph E Lindberg  wrote:   
   >> On 2024-10-14 15:25:33 +0000, sticks said:   
   >>   
   >>> So my base plate is shipped and supposed to be here tomorrow.   
   >>> I will be ready for some cold weather traveling.  I get that   
   >>> my fresh water is inside the coach and as long as it is kept   
   >>> warm should not freeze.  Tank heaters on the gray and black   
   >>> tanks on the underside of the frame are supposed to keep them   
   >>> from freezing.  My question is on the Truma on-demand water   
   >>> heater.  I asked my brother about this but his class A has a   
   >>> 10 gallon tank heater, so he had no advise on this.   
   >>>   
   >>> I suppose before leaving the mid-west and heading to warmer   
   >>> regions, I could simply fill my tanks and leave the rest of   
   >>> the RV winterized.  But for discussion, say I'm leaving a warm   
   >>> area and heading into cold.  Is it true that turning the power   
   >>> on to the Truma which is located on an outside wall with a   
   >>> vent, enough to keep it from freezing up?  Obviously you'd   
   >>> have to winterize as soon as you stopped running the vehicle,   
   >>> but what about during transport?  If you have the tank heaters   
   >>> on, the inside of the RV heated, and the power to the Truma   
   >>> on, are you safe from freezing?   
   >>   
   >> I haven't worked on a Truma, but my understanding is the power   
   >> does not keep the water at any given temperature, the only   
   >> thing that does is the cold water flowing through the system,   
   >> which starts the heat going. IF the Truma is on the insidee of   
   >> the heating envelop for the rig that should provide enough warm   
   >> to keep the unit from freezing. That being said I have doubts   
   >> in SERIOUS (ie like 10F or colder) that it would   
   >   
   > We have a Truma Combi Eco in our Lance 1475, and it's supposed to   
   > be installed so that it keeps the tanks from freezing (to a point,   
   > of course).  My understanding is that it should heat on 12 V power   
   > if propane is also supplied.  That said, when we camped a couple   
   > of weeks ago we needed some heat while flatspotting.  It would   
   > start up okay, but shut down after a minute or two.  On the other   
   > hand, it would continue running if I hooked up the generator.  I   
   > thought I had it set to gas only for heating (i.e., not electric   
   > or mixed), but maybe I goofed somehow. 	   
   >   
      
   How did your battery hold up?   
      
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